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TABLE OF CONTENTS

DESCRIPTION OF HANDS-ON TRAINING ----------------------------------------------------------

BACKGROUND OF THE AITECH ----------------------------------------------------------------------

SUMMARY OF DPWH-ACCREDITED HOUSING MODELS --------------------------------------

HANDS-ON TRAINING 1: MAY 11-15, 2015 -----------------------------------------------------

HANDS-ON TRAINING 2 (TACLOBAN): JUNE 22-24, 2015 ----------------------------------

HANDS-ON TRAINING 3 (BACOLOD): NOVEMBER 24-26, 2015 ------------------------------

CONSTRUCTION METHODOLOGIES OF AITECH ACCREDITED TECHNOLOGIES ----------

PERMAFORMS by Permaforms Inc.

GARDNER by Central Lumber Corporation

PLASWALL by Ecostrong Builders Corporation/STERLING Construction &

Development Corporation

LIGHT GAUGE STEEL FRAMES by Nedsteel Construction &

Development Corporation

STEELTECH by United Steel Technology Incorporated

MEMORANDUM CIRCULAR NO. 2016-20: --------------------------------------------------------

Guidelines for Construction Using AITECH Accredited New Technologies

CHECKLIST FOR CONSTRUCTION --------------------------------------------------------------------

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HANDS-ON TRAINING SEMINAR FOR DPWH-APPROVED & AITECH ACCREDITED TECHNOLOGIES

FOR TYPHOON YOLANDA

The Hands-On Training Seminar was created to educate NHA technical staff and other developers/contractors who will be using the technologies of the proper construction methodologies of DPWH-approved housing models with AITECH accredited technologies/systems/building materials for typhoon reconstruction projects and other NHA projects. This is to ensure proper application of the said technologies/systems. The Hands-On Training Seminar was done in coordination with the technical providers of the said housing models.

AITECH AITECH stands for Accreditation of Innovative Technologies for Housing. It is a system for accrediting innovative technologies for housing. AITECH was conceived as a result of the numerous building technologies that have been developed in the last few years using non-traditional or alternative materials and systems. Cognizant of their potential in reducing over-all housing costs, it has become imperative to accredit these innovative technologies for low-cost housing. AITECH responds to queries and requests from private manufacturers of indigenous and innovative building materials/systems for technical and engineering evaluation leading to accreditation of these products. The AITECH Inter-Agency Committee reviews and accredits the technologies.

The AITECH Committee is composed of the following agencies: Housing and Urban Development Coordinating Council (HUDCC) National Housing Authority (NHA) Department of Science and Technology (DOST) Home Guaranty Corporation (HGC) Department of Public Works and Highways (DPWH) Housing and Land Use Regulatory Board (HLURB) Home Development Mutual Fund (HDMF) National Home Mortgage Finance Corporation (NHMFC) Construction Industry Authority of the Philippines (CIAP) Department of Trade and Industry – Bureau of Product Standards (DTI – BPS) University of the Philippines – Building Research Service (UP – BRS)

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DPWH-APPROVED HOUSING DESIGN USING AITECH ACCREDITED MATERIALS

MODEL PROPONENT/ AGENCY COST PER UNIT

Proposed Duplex Housing Plan for Yolanda

Rehabilitation – Philippine Red Cross

Lot Area = 50 sq.m.

House Area = 21 sq.m.

Jose Cris Builders Php150,127.98

Proposed 22 sq.m. Lofted Rowhouse for Typhoon

Yolanda Victims

Jose Cris Builders 200,000.00

Proposed 28.60 sq.m. Bungalow Design as Another

Option for Permanent Housing – Yolanda Project

PermaForms Inc. / Realm Homebuilders

Incorporated

Php196,244.32

22 sq.m. Rowhouse with Loft Provision

PermaForms Inc. / Realm Homebuilders

Incorporated

Php195,000.09

22 sq.m. Loftable Rowhouse

Nedsteel Construction and Development Corporation

(NCDC)

End Unit = Php158,439.47 Regular Unit = Php136,038.17

26 sq.m. Single Storey Row House

Nedsteel Construction and Development Corporation

(NCDC)

Php 194,999.31

22 sq.m. Loftable Row House for Typhoon Yolanda

Victims

Ecostrong Builders Corporation

Regular Unit = Php 170,501.92 End Unit (Stand alone) = Php

214,419.28

22 sq.m. Loftable Row House

E. Florentino3 + Associates Php 187,716.30


With Bedroom

SKS Construction and Development Corporation

Regular Unit = Php 194,999.88


Without Bedroom

SKS Construction and Development Corporation

Regular Unit = Php 192,363.82

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DPWH APPROVED HOUSING DESIGNS USING CONVENTIONAL MATERIALS

MODEL PROPONENT/ AGENCY COST PER UNIT

22 sq.m. with Loft Rowhouse for Typhoon Yolanda Victims

NHA Php219,723.63

2 Storey LRB Architectural Design by NHA Structural Design by DPWH

For Estimate

3 Storey LRB Architectural Design by NHA Structural Design by DPWH

For Estimate

28.40 sq.m. Rowhouse for Typhoon Yolanda Victims

Goldenville Realty Dev’t. Corp.

Php194,790.96

27 sq. m. Single Detached (Bamboo House) - Palawan

Habitat for Humanity Philippines

Php 225,121.95

APPROVED MATERIALS FOR HOUSING TECHNOLOGY NAME OF PROPONENT STATUS

FENA Roof Anchor System

(Alternative to J-Bolt)

FRANCISCO J. NAKPIL Technology is found technically appropriate to make roofing structures

resilient; DPWH interposes no objection to its

use as an alternative material

Rib-type galvanized iron roofing and Hook-type

bolt

ROBIG BUILDERS AND DEVELOPMENT CORPORATION

Approved by the DPWH

Onduline Roofing Material

OFIC PHILIPPINES, INC. Approved by the DPWH for use as alternative to G.I. Roofing

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These are the proceedings of the Hands-On Training for DPWH-Approved and AITECH Accredited Technologies held at the Housing Technology Resource and Exhibit Center Building, NHA Main Compound, Elliptical Road, Diliman, Quezon City. The training for NHA staff was conducted last May 11 – 15, 2015. Participants were technical staff from the Visayas Management Office, Mindanao Management Office, Southern Luzon-Bicol Office, Project Operations Support Service Office, Housing Technology Development Office and the General Services Department. The technology providers involved in the training, namely Ecostrong Builders Corporation, Permaforms Incorporated, Nedsteel Construction and Development Corporation, Noellouise Custom Furniture and Fitouts Corporation, and United Steel Technology Corporation, submitted housing design models using their AITECH-accredited technologies for review and approval by both the NHA and the DPWH. The following is an overview of the five days training and the highlights of the program: Day 0: Preparation of Foundation and Slab On-Fill Prior to the training, Permaforms Incorporated had already prepared the foundation and slab for actual construction. A 4.00m x 4.00m module was prepared in the area between the NCL Office and the HTREX Building where the proponents held a construction demonstration as part of the training. Day 1: Lecture Presentation The proponents started the Hands-On Training with presentations detailing the construction methods and technical specifications of the technologies. The lookouts in actual construction were focused on during the lecture. Day 2: Actual Demonstration by Ecostrong Builders Corp. & Permaforms Inc. The Hands-On Training had resumed on the second day with Ecostrong Builders Corporation’s and Permaforms Incorporated’s actual board-up demo on the front and side walls of the prepared module. Their technologies are panels that incorporate plastic spacers for the rebars, finished on each side with fiber-cement boards that are attached by special glue on the spacers, fabricated off-site and assembled easily on site before pouring. Day 3: Actual Demonstration by Nedsteel Construction and Development Corp. The third day opened with the demonstration of Nedsteel Construction and Development Corporation installing their Light Steel Framing System for the rear wall of the mock-up. The Light Steel Frames were clad with fiber-cement boards that were screwed and secured in place with C-channels before pouring. In the afternoon, concrete pouring for the in-fill began. Concerns were addressed regarding the correct pouring technique to avoid segregation of aggregates. Day 4: Roofing Frame Installation and Presentation for the Doors and Windows The proponents finished the concrete pouring for their walls, and NCDC simultaneously installed the roof framing. In this case, Nedsteel has already pre-assembled the rafters and trusses prior to the actual installation. The door and window assemblies are provided by Noellouise Custom Furniture and Fit-Outs Corporation, together with its partner, Titan Doors.

HANDS-ON TRAINING FOR DPWH-APPROVED AND AITECH ACCREDITED TECHNOLOGIES

MAY 11-15, 2015; HTREX BUILDING, NHA COMPOUND, DILIMAN, QUEZON CITY

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Day 5: Roofing Installation and Wrapping-Up The last day of the training began with a demonstration by the contractor Robig Builders and Development Corporation, partnering with United Steel Technology Corporation in using Steeltech roofing sheets. Robig Builders is a contractor for a project in Leyte, where they used Steeltech products with the J-type bolts that Steeltech supplies with their roofing sheets. Before concluding, the group of participants and proponents gathered in the HTREX Lobby to review their findings on the past few days and address the concerns on the reporting for post-construction. The format of the checklist report was heavily discussed for ease of checking by the project managers.


MAY 11-15, 2015; HTREX BUILDING, NHA COMPOUND, DILIMAN, QUEZON CITY

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JUNE 22 – 24, 2015 NHA LEYTE – SAMAR PROJECT OFFICE, TACLOBAN CITY, LEYTE

These are the proceedings of Phase 2 of the recently concluded Hands-On Training for DPWH-Approved and AITECH Accredited Technologies, held in the NHA Leyte-Samar Project Office in Calanipawan Road, Sagkahan, Tacloban City, on June 22-24, 2015. The second phase of this training featured Nedsteel Construction and Development Corporation, Permaforms Incorporated, United Steel Technology Corporation and Greenway Toilet Solutions. The participants of this training consisted of technical staff from the NHA Leyte-Samar Project Office and contractors involved in the construction of disaster-resilient housing for the victims of Typhoon Yolanda. Nedsteel’s Light Gauge Framing System and Permaforms particularly are already being used in the area as alternatives for conventional methods of construction, and, along with Steeltech, were part of the previous Hands-On Training Seminar held in the NHA Main Compound last May 2015. Below is an overview of the training: Day 1: Introduction of the Technologies and Lecture Presentation Nedsteel Construction and Development Corporation started the lecture presentation with the company’s technology, Light Gauge Steel Framing System. It was followed by United Steel Technology Corporation presenting the Steeltech colored roofing sheets and J-bolt, followed by the presentation of Permaforms Inc. on their Permaforms panel; and lastly Green Eco-Toilet System by Greenway Toilet Solutions, a technology that incorporates recycling of gray water. A representative from SCG, the supplier for the fiber cement boards that are part of Permaforms Inc.’s technology was also present. Each presenter was given an opportunity to discuss questions and clarifications from site engineers and contractors using their technology. Day 2: Actual Construction Demonstration by Permaforms Incorporated The participants headed to the project site in Babatngon, Leyte, where the site of Phase 2 of the Channel Ridge View project is located. The said project is already implementing the DPWH-approved 28.6 square meter housing design model by Permaforms Inc. The presenters from Permaforms gave notes on the precautionary measures for installing the panels and concrete pouring, which are crucial to the technology. Day 3: Actual Construction Demo by Nedsteel Construction & Dev’t. Corporation, Steeltech and Greenway The second mock-up unit based on Nedsteel’s 26 square meter housing design model was done within the compound of the NHA Office in Tacloban, where Nedsteel demonstrated the installation of the framing and the rafters for the roof. Steeltech also had a small mock-up of their own, where they showed how the J-Bolts are installed and demonstrated how to check the thickness of the roofing sheets. Greenway Toilet Solutions also demonstrated the installation of the water recycling unit for the toilet and bath of the 26 square-meter mock up. The training enabled the participants to ask questions on their actual experiences in using the technologies. For instance, it was found that site engineers had been using the wrong type of calliper to measure the thickness of the roofing (the Vernier calliper, which was being used to check the thickness of the roofing sheets, is more accurately used for bolts), which was afterwards clarified due to Steeltech’s information. Steeltech also presented a roofing system design that incorporates J-Bolts and tekscrews for quicker installation, but it is yet to be approved by the DPWH.

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JUNE 22 – 24, 2015; NHA LEYTE–SAMAR PROJECT OFFICE, TACLOBAN CITY, LEYTE

Likewise, Permaforms Inc. addressed concerns on the reports of segregation of aggregates in the said technology, and thus a recommendation of laying the boards horizontally to enable pouring at the proper height was made. The company agreed to do a study on the possible implications of this on the cutting list and the cost. It was also agreed upon that fabrication of the panels by the contractors will no longer be allowed to ensure that the quality of the materials will not be compromised. The training concluded on a general discussion on the approved plans and the processes should contractors decide to change from using conventional materials to new technologies.

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This is the 3rd Phase of the said Hands-On Training for the Bacolod Project Office in Negros Occidental. The said training was held from November 24 – 26, 2015. The technologies featured in this Hands-On Training were Permaforms by Permaforms Incorporated, Gardner Fiber Cement Boards by Central Lumber Corporation, and Steeltech Roofing Systems by United Steel Technology Corporation. Attendees were the project engineers and architects of VMO-Bacolod and various engineers and site supervisors from Bilrey Construction, Opus Land Inc. and A5R Dynamics Construction Corp., contractors and developers who have been using Permaforms Panel in their contract for the Yolanda Rehabilitation Program. Day 1: Lecture Presentation by the Technology Providers The training kicked-off with an introduction to the three technologies. The technical providers presented their AITECH Accredited technologies’ features and their methodologies. The contractors and site supervisors asked a range of questions, from the pricing to the methodology based off their own site experience in using the featured technologies. Day 2: Construction Demonstration at Antonino Heights, Cadiz City The actual demo done by Bilrey Construction workers was held at the NHA project site in Brgy. Luna, Cadiz City. The project makes use of the Permaforms Panel, with the horizontal layout of the boards. This new layout had been an outcome of the previous training, held in Tacloban, which had been one of the suggestions so as to guard the pouring of concrete at a correct height. Additional observations were made by the workers in the difficulty in lifting the boards at this layout, and also with the way they insert the vertical rebars. The site engineers brought up the solution they had come up with on-site, and was one of the main topics tackled at the Q&A. Day 3: Wrap up and Awarding of Certificates The training proper ends on a review of the learning on technologies featured during the three-day training. Attendees who managed to complete the full three days were awarded certificates to signify that they are able to supervise over the use of the new technologies featured in NHA projects. As with the previous trainings, this event enabled contractors and supervisors to voice out their concerns and questions in using the AITECH Accredited technologies and again, it was a good opportunity for the proponents also to improve upon their technology because of various experiences on site.


NOVEMBER 24 -26, 2015 NHA BACOLOD PROJECT OFFICE, BACOLOD CITY, NEGROS OCCIDENTAL

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On December 16, 2015, the National Housing Authority facilitated its fourth Hands-On Training for the new technology, Eco-Key System. Spearheaded by the Housing Technology Development Office, and in partnership with Paligid Development Corporation, thirty-five of NHA’s technical staff participated in the lecture presentation and the ensuing actual demonstration that showed its unique construction methodology. A model house had been constructed in the Main Compound adopting the NHA 26 sq. m. house model to showcase the adaptability of the technology to the Agency’s housing design. The Eco-Key System is a fiber cement EPS (Expanded Polystyrene) foam board, a fast and green housing technology solution to modern pre-fabricated housing. Made of high strength fibers and cement, it is resistant to water and moisture, corrosion and acid, and pest damage. Fire tests yield that the system is A-grade and does not produce toxic fumes. Manufactured by pulping, shaping, cutting, pressurizing and steam-curing, the material is absolutely free of toxic substances, such as asbestos, formaldehyde, benzene, and others. Its strength enables it to be used for single-storey as well as multi-storey buildings. The Eco-Key System allows for ease in construction and installation, requiring no special tools and minimizes wastage. One of the most valuable features of this technology is that its installation is 60% faster than traditional construction methodologies; the single storey NHA Model for 22 and 26 square meter area can be installed within 6 days. Its smooth surface allows it to be painted without additional preparation work before painting.

HANDS-ON TRAINING FOR ECO-KEY SYSTEM BY PALIGID DEVELOPMENT CORPORATION

DECEMBER 16, 2015; NHA MAIN COMPOUND, ELLIPTICAL RD., DILIMAN, QC

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CONSTRUCTION METHODOLOGIES

• PERMAFORMS

• GARDNER FIBER CEMENT BOARD

• PLASWALL

• NEDSTEEL LIGHT GAUGE STEEL FRAMING SYSTEM

• STEELTECH ROOFING SYSTEM

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Permaforms Wall Panel is a panel composed of fiber cement boards (accredited with the AITECH), single component polyurethane adhesive, and its technology “Universal Rebar Adaptor”, which holds the rebars in place. They act as permanent formworks, which deletes the cost of the forms. There is no need for plastering and it ready to receive paint. Its advantages are: -The labor cost is fixed and paid on a per module basis - It limits wastage on construction materials - It is easy to manage on the construction site - The fiber cement board used has no asbestos or harmful chemicals (AITECH Accredited only) - The concrete in-fill can be - load bearing, light weight or non-load bearing wall concrete mixture

Other uses for the Universal Rebar Adaptor includes acting as a spacer for slab-on fill and suspended slab, as wall guide and capping. Its design and orientation limits and eradicates honeycomb.

1. Permaforms makes use of an OPTIMIZED CUTTING LIST OF PANELS

PERMAFORMS FEATURES & BENEFITS

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2. Permaforms provide INFORMATION ADVERTISEMENTS ON PER MODULE OF ACTIVITY (MODULE POSTERS TARPAULIN)

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3. Permaforms has the CAPACITY to manufacture and deliver, producing 40,000 houses in 12 months.

4. Permaforms perform their own TRAINING PROGRAM and MONITORING, doing random monitoring and site inspection and updating the client regarding the quality of work and state possible recommendations

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GARDNER TPI Fiber Cement How it is made Made with the latest & most advanced German Hatscheck machinery & technology. Produced with a combination of cellulose fiber, sand, and premium quality portland

cement which are autoclaved to produce high quality, durable fiber cement board,

wood and PFC.

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BOARDS • Ceiling Board

• Wall Board

• Floor Board

• White Coat Board

• Texture Board

Ceiling • Wall • White Coat

GARDNER TPI Ceiling Boards flat with very smooth surface and ideal for interior and exterior ceiling. Wall Boards are designed to take high impact strength and resistance to heat, water and moisture for interior partitions and exterior cladding. GARDNER TPI White Coat Boards are pre-painted boards with 4.5mm and 6mm thicknesses.

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Floor Board

Gardner TPI Floor Boards are strong and tough boards for load bearing elevated floors and floor levelling. Can be topped with ceramic tiles, vinyl tiles, laminated & engineered flooring, or carpet. GARDNER TPI 16mm and 18mm can carry up to 2x-5x more load than other fiber cement in the market.

Texture Board

GARDNER TPI Texture Boards are decorative 4x8 boards that accent a room by cladding a portion of the wall with Texture Boards.

BASIC PLASWALL METHODOLOGY

1. Prepare the concrete slab as per specification and details of plans.

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2. Concrete slab should be rough even finished.

3. Starter bars or link bars should be clearly exposed and free from obstacles prior to installation of Plaswall panel. Once concrete slabs are cured, installation of Plaswall panel shall commence.

4. Place wall angle at the edge side or in

between two Plaswall panels and pin on the concrete slab, to serve as guide for the rest of the panels to be erected and also to secure Plaswalls in place and correct alignment.

5. Before installation, cut panels for the door and window openings, and others, as per specification in the plan.

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6. Install PlaswaTHEN INSTALL THE PLASWALL PANEL

SLIDE INTO STARTER BARS OR LINK BARS AND REST VERTICALLY ON THE SLAB.

7. SAME PROCEDURE WITH ELECTRICAL CONDUITS, WATER LINES AND PLUMBING WALL ROUGHING-INS ARE SLIDES INTO THE PANELS AND CUT APPROPRIATE HOLES FOR CONNECTION OF:

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8. TEMPORARY BRACES & HORIZONTAL STRUTS SHOULD BE INSTALLED & TIED UP BOTH SIDES OF THE PANEL TO KEEP THE PLASWALL PANEL PLUMB & UPRIGHT POSITION. ALSO WILL HELP PREVENT PANEL FROM BULGING WHILE CONCRETE POURING. MOUNTED @ 0.30M AND 1.2M FROM THE CONCRETE SLAB. USE LEVELING BAR TO CHECK THE PLUMBNESS OF THE PANEL.

CLASS PROPORTION CEMENT SAND GRAVEL CONRETE STRENGTH

PSI Mpa

AA 1 : 2 : 3 12 0.6 1 4000 27.5

A 1 : 2 : 4 9 0.6 1 3500 24.13

B 1 : 2.5 : 5 7.5 0.6 1 3000 20.68

C 1 : 3 : 6 6 0.6 1 2500 17.24

D 1 : 3.5 : 7 5 0.6 1 2000 13.79

9.. USE WALL ANGLE OR SCRAP PLASTIC SPACER CUT AS BRACKETS AND SCREW TO SUPPORT INTERCONNECTION OF PLASWALL PANELS T SECTION AND ELBOW SECTION.

10. SLIDE AND SHOOT THE REBARS @ THE HOLES OF THE PLASTIC SPACERS INSIDE THE PLASWALL PANEL FOR VERTICAL AND HORIZONTAL REINFORCEMENT. SPACING OF REBARS WILL BE BASED ON GIVEN PLAN

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11. FOR FILLING OF CONCRETE INSIDE THE PLASWALL PANEL USE FUNNEL AND PLACE IT IN BETWEEN PLASTIC SPACERS. COMPRESSIVE STRENGTH AND THE MIXTURE OF CONCRETE WILL BE BASED ON THE STRUCTURAL SPECIFICATION.

12. POUR CONCRETE INSIDE THE PANEL BY LEVEL @ 0.30M GRADUALLY UNTIL IT FILLS THE ENTIRE PANEL.

13. ONCE THE CONCRETE IS CURED, REMOVE ALL THE TEMPORARY STRUTS AND BRACES AND CLEAN THE SURFACE OF THE PLASWALL. DONOT REMOVE THE SCREWS BUT INSTEAD POUND THE SCREWS UNTIL THE HEAD OF IT PENETRATES THE PANELS AND FLATTEN THE SURFACE EVEN. 14. FOR FINISHING TOUCHES: LAY THE MESH TAPE IN BETWEEN PANELS OR GROVE CONNECTION BETWEEN PANELS AND HAVE IT SKIM COAT. POLISH THE SURFACE OF THE PLASWALL BY SAND PAPER PRIOR FOR PAINTING.

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ERECTING

Assembly:

For an NHA house of 22 square meters, 400 linear meters of steel coil are used. 3 men can take 5 hours to frame and erect or 15 man hours total.

22 square meter house with 3 men, it takes 1.5 hours to fabricate the steel frames, 5 hours or 15 man-hours to assemble frame and erect, 6.5 hours to complete house framing ready for roof & wall cladding.

NEDSteel is a New Zealand technology company that has developed world leading software and computer controlled roll forming machines. These combine to automate the manufacture of light gauge steel frames that are used to build various types of structures and also for making components used in building, such as lattice beams

CONSTRUCTION METHODOLOGY Using Light Gauge Steel Framing System

The building lines should be staked out All lines and grades are established before excavation starts, Batter boards and reference marks to be erected at such places where they will not be disturbed during the excavation of the building 0.20 meter fill on the units

Stage 1: Foundation – Staking & Layout

Debris or deleterious soil is removed Make sure the proper elevation for the construction was attained through site grading. Once site is properly graded, prepare area for installation of utilities and foundation.

Stage 2: Foundation – Lot Grading & Excavations

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Place forms along the trenches for the foundation Prior to the placement of polyethylene sheet (4 mil.), make sure the desired elevation has been attained Prior to pouring of concrete, reinforcing steel bars, dowels and hold down embedment should be positioned in the trenches Reinforcing steel bars are placed slightly elevated on top of the polyethylene sheets. It should be properly embedded in the finished slab.

Stage 3: Foundation – Installation of Rebars for Slab


All piping for drain, waste and vent/s should be in place according to plan. Utility pipes are placed in the excavated trenches, which will be backfilled prior to the pouring of concrete for the foundation.

Stage 4: Foundation – Plumbing Layout

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The proper position of starter bars should be checked prior to pouring of slab. Starter bars should be 10mm Ø x 400 mm spaced at 600mm O.C. An RFI (request for inspection) is required to verify that the embedded items were placed according to plan. Concrete with design mix of 2,500 psi / 28 days is poured. Allow 24 hour curing before removal of steel forms.

Stage 5: Foundation – Concrete Floor Slab

Steel frames are delivered on site pre-cut and pre-punched together with an installation manual. Framing panels are fastened together using blind rivets Wall layout is marked on the floor slab prior to erecting the wall frames

Stage 6: Steel Framing - Assembly


Stage 6: Steel Framing - Erection Start at the external corner; place and plumb a wall frame panel. Install the adjoining frame to make a self-supporting corner. Clamp the frames together and check for plumbness and proper positioning. Connect frames with screws or rivets recommended by the manufacturer. Erect frames along the perimeter of the unit, installing the internal and external frames as necessary. Install temporary bracing during wall frame erection. The line of top plates in a run of walling should be checked with a plumb line. Make sure that the 90 degree angle is attained consistently by clamping the frames together through bracing on all corners from the middle up to the top track.

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After the wall frame panels are installed, put the door jambs into position. Make sure all electrical and plumbing stub-outs are set into place before installation of forms. Provide extra stud for utility box bracing (see illustration #1)

Stage 7: Electrical & Plumbing stub-outs


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Illustration # 1

Stage 8: Wall forms Forms shall be of fiber cement boards, standard size of 1.22m x 2.44m, AITECH Accredited. Install fiber cement boards for interior side of walls first. This is to ensure that all roughing-ins are in place. Install the boards for the exterior side of the wall next. Make sure the boards are placed up to the finished grade line to achieve a monolithic concrete mix covering the floor line; also to detain possible water seepage along floor line level. Secure the boards by screwing on the frames at a spacing of 0.20m both ways. Fix shoring on joints to prevent overflow of concrete mix and to maintain plumbness. Pouring shall be done at 1.2m lifts maximum with the design ration of 1:5, flowable type using 1 bagger mixer in a direct concrete placement method.


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Stage 8: Concrete Wall in-fill

After concreting of walls, prepare surfaces for painting by grinding, to even out surfaces. Apply skim coat for the interior walls and base coat on the exterior walls.

Stage 8: Wall forms & Concrete wall in-fill

Stage 9: Exterior Rough

Exterior Doors and Windows are delivered and installed Roofing sheets and accessories are installed Required interior and exterior finishes are applied.

Finishing shall follow in accordance with the plans and specifications.

Stage 10: Detail Finish

OVERVIEW • Established in 2009, the United Steel Technology (Steeltech) International

Corporation is a provider of quality steel building materials in the country. It is an affiliate of Sonic Steel Industries Inc. and Somico Steel Mill Corporation. Steeltech’s extensive product portfolio includes colored roofing, bended accessories and steel deck materials to cater to residential and industrial requirements.

• Its superior quality is its number 1 priority and goes through rigorous testing before each product is delivered to its customers.

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• Raw material: Pre-painted Galvanized Iron

• Supplier of PPGI: Sonic Steel Industries Inc.

• Production facility: Color Coating Line (CCL)

• Paint Type: Regular Polyester (P/E)

– Other paint systems

• Silicone Modified Polyester (SMP)

• High Weatherability Polyester

• PVDF (Poly-vinyliden Fluoride)

• Paint Supplier: Akzonobel Paint

PRODUCTS

Color Swatches

Amazon Green

Mahattan Red

Venetian Blue

Colombian Coffee

Tuscan Brown

Moroccan Dune

Canyon Beige

Matador Red

Arctic White

Siberian Frost

Caribbean Sea

Oxford Gray

Springfield Green

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CONSTRUCTION METHODOLOGY

MEMORANDUM CIRCULAR:

GUIDANCE FOR CONSTRUCTION USING AITECH ACCREDITED

NEW TECHNOLOGIES

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MEMORANDUM CIRCULAR NO. _____

GUIDELINES FOR CONSTRUCTION USING AITECH ACCREDITED – NEW TECHNOLOGIES In view of the need to orient and educate end-users of AITECH accredited new technologies, there is hereby a need for the issuance of these guidelines. Specific actions for the proper use and application of said technologies are herein provided to ensure compliance to correct construction methodologies based on AITECH approval. 1. BACKGROUND

1.1 The AITECH Inter-Agency Committee or simply “The Committee” shall act as a review and approving body for applications for accreditation of innovative technologies appropriate for housing, in securing acceptance of their products or systems in the market as well as to make these technologies eligible for funding acceptance under government housing programs.

Functions of the Committee: The member of the Committee shall perform the following functions: HUDCC – shall stand as the lead agency for the Committee and as such the HUDCC Chairman shall be the signing authority for the accreditation certificate. NHA – The National Housing Authority shall act or serve as the AITECH Secretariat for the Committee, and the agency involved with the structural and economic evaluation of new technology systems appropriate for socialized, economic, medium, and high-end housing project with the following specific functions: a) To review the consistency of pertinent documents required for

accreditation before payment of the required fees; b) To refer necessary testing/evaluation to the proper AITECH member

agencies upon payment of the required fees; c) To coordinate regular Committee meetings and other for a; d) To perform other administrative functions related to accreditation. DOST – as the agency in charge of conducting material testing and evaluation involving the physical, mechanical and other related properties and recommend innovative materials/technologies for construction application. HGC – as the agency concerned with the appraisal of housing models utilizing innovative building technologies/materials. HDMF/NHMFC – as the government financing institutions that shall accept accredited technologies. HLURB – as the regulatory agency tasked with the monitoring accredited technologies on its compliance with housing standards based on the latest IRR of BP 220 and PD 957, and PD 1096. UP-BRS – as an alternative testing facility and evaluating agency concerned with the overall technical feasibility of technologies.

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DPWH – as an alternative evaluating agency on structural designs of low-storey, medium to high rise housing, testing of materials pertaining to other technologies for infrastructure (i.e. roads, bridges); and validation of laboratory test reports from its accredited testing laboratories. CIAP – as the agency tasked with dissemination of information; as well as the inclusion of applicable technologies in the Modular Coordination System. DTI-BPS – as the agency tasked with monitoring of quality production; information dissemination on new construction materials as well as the development of standards.

1.2 The Amended Implementing Guidelines on the Accreditation of Innovative Technologies for Housing dated 27 August 2003 also mandates the AITECH to act as a monitoring body to ensure that the accredited technology/system/building materials is/are being used in accordance to the proponent’s approved proposal.

1.3 In line with the above, two (2) hands-on training workshops and seminars

were conducted. The first one was held at the NHA Compound, Elliptical Road, Diliman, Quezon City, from 11-15 May 2015. The second one was held in Leyte-Samar Project Office, Calanipawan Road, Sagkahan, Tacloban City, from 22-25 June 2015. The training included (a) lecture presentation by the technology providers, and (b) on-site demonstration construction to familiarize the participants on the proper application and construction methodologies. Participants included NHA technical personnel including project team heads, staff, contractors/developers who will be using said technologies.

2. OBJECTIVES The guidelines are hereby issued with the following objectives:

2.1 To ensure the quality and proper application of new technologies which are AITECH accredited in all NHA housing projects; 2.2 To provide uniform guidelines to NHA project implementers and inspectors

on the proper use of the technologies. 2.3 To establish and maintain a reliable AITECH monitoring system.

3. COVERAGE

These guidelines shall cover all current and future NHA housing projects using AITECH accredited technology/system/building materials. These shall also cover the three-phases of construction.

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4. PRE-CONSTRUCTION PHASE 4.1 There shall be a mandatory coordination meeting among NHA personnel,

both from HTDO and from Project Implementing Team, AITECH technology proponent or supplier and the contractors who will use the technology prior to actual construction.

4.2 A hands-on training seminar and workshop shall be conducted and scheduled

prior to actual construction.

The Housing Technology Development Office (HTDO), together with the accredited technology proponent shall conduct training for the NHA employees and the contractors before using the new technology. Training shall highlight the proper installation and methodology of the technology. Certificates shall be awarded to those who completed the trainings. Contractors who are not issued certificates of training completion will not be allowed to implement the new technology. The site where the hands-on training will be conducted shall be identified by the NHA project team leader. Participants shall be identified at least two (2) weeks prior to the conduct of the training, the list of which must be submitted to HTDO, and forwarded to HRMD, and for approval of the General Manager. A checklist for construction shall be provided by the technology proponent to the NHA and the contractor for compliance and to be used as a monitoring and inspection tool by NHA project implementors (see Annex A). All expenses incurred in the preparation and conduct of the hands-on training and seminar workshop shall be for the account of the proponent and contractor as agreed between them.

5. CONSTRUCTION PHASE

5.1 The technology proponents/suppliers shall submit to NHA copies of the certification every quarter for the project made by the contractors/developers to authenticate that the items purchased are from the accredited proponents. The contractor/developer shall attach said purchase orders to the billing documents to be submitted to the NHA Project Officer in charge of the project.

5.2 The construction checklist shall be used by the NHA project implementors

and which shall likewise include notes observation and findings on the critical points for construction of the technology (see Annex B).

5.3 Sanctions shall be set should errors be made in actual installation of the new

technology, in the form of possible revocation of the certificate awarded to the technology provider or non-payment of the accomplishment of the contractor by the NHA Project Implementing Team (NPIT).

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6. INSTRUCTIONS FOR COMPLIANCE DURING ACTUAL CONSTRUCTION 6.1 Execution of designs must strictly conform to the plans as approved by the

NHA and/or the DPWH as the case may be. 6.2 Tests like soil compaction tests, compression tests, etc. should strictly be

observed by the contractor and copies of the results duly submitted to the Project Office.

6.3 Field density test shall be required per block, and costs shall be included in

the indirect cost. 6.4 Compaction is critical and should be observed prior to actual construction. 6.5 For panel technologies like Plaswall and Permaforms, starter bars should be

aligned with the spacers within the panel. 6.6 Vertical bars should be tied at the bottom of the panels to ensure non-

movement and also to avoid pilferage. 6.7 Utilities (electrical piping and plumbing) should be well secured to avoid

movement within the panel. Fixed sockets should be included in the specifications.

6.8 On-site fabrication of panel technologies (e.g. Plaswall and Permaforms,

orsimilar) by the contractor/developer shall no longer be allowed. For the protection of the technology and to ensure right methodology, the supplier should strictly fabricate the panels or strictly supervise fabrication on site by their qualified personnel.

6.9 Material specifications (e.g. thickness of the boards to be used as permanent

formworks for panels) should be uniform and in accordance to approved plans and specifications.

6.10 A set basis for the concrete mixture where contractors can derive from shall

be established. A trial mix should be required from the contractor, to check the mixture, strength, and slump, prior to pouring.

6.11 Concrete mixtures that need to be modified according to locally available

sand or aggregates, or any modifications made in the design mix should first be approved by the field office before implementation. Design mix per approved specification must be used for the project as agreed during construction meeting.

6.12 Boards for permanent formworks with at least 4.5mm thickness should be

installed horizontally to allow pouring at the recommended height. The

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pouring should only be done at a height of 0.30m. To ensure that there is no segregation of aggregates walls should be tapped with a rubber mallet immediately after concrete pouring.

6.13 For roofing, proper overlaps should be observed to avoid leaks. For rib-type

roofing, rib profile should follow the standard 0.30m (2 ½ corrugations) overlaps.

6.14 A digital micrometer should be used as caliper for roofing sheets. A Vernier

caliper (for bolts) will not be able to yield the same result, thus, shall not be used to get the thickness of the roofing sheets.

6.15 On random checking, the NHA inspector, supplier and the contractor shall

certify that the correct roofing had been delivered on site. NHA shall not accept nor use sheets or other materials that are less than the recommended specifications.

6.16 In the event that a contractor developer decides to change any material or

methodology and shifted to another technology, the contractor/developer must secure prior written approval from the NHA, through the AMO/Regional Offices. This shall be covered by a variation order. All change in technology and plans must likewise be submitted to HTDO for review, for the final approval by the General Manager.

7. POST-CONSTRUCTION PHASE

An accomplished final report certifying compliance to the checklist for construction shall be attached to the billing and final acceptance of the project (see Annex B). The same must be submitted to the Project Implementing Team and to the AITECH Secretariat of HTDO.

8. AITECH TEAM INSPECTION

8.1 An AITECH Inspection Team is hereby created and shall be composed of architects and engineers from the HTDO as well as members of the AITECH Inter-Agency Committee. It shall conduct inspections on projects with critical findings on the use of the new technologies. There shall be at least three (3) members of the Inspection Team, two (2) from HTDO and one (1) from the AITECH Committee.

8.2 The AITECH Inspection Team shall be undertaken at least once during pre-

construction phase and during construction phase as may be necessary. 8.3 The schedule of the AITECH Inspection Team shall be coordinated with the

CPES Team, if the concerned project is included in the CPES evaluation list. While the CPES is concerned with the over-all performance of the contractor, the AITECH Team shall check on the proper use and application of the technology.

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8.4 All AMOs/Regional Managers shall designate the Project Manager of the concerned project or his/her technical representative to witness the inspection.

8.5 The AITECH Inspection Team shall likewise submit its report supported by

photos and videos to the AITECH Inter-Agency Committee and to the General Manager for information, within five (5) days after its inspection.

8.6 Should there be discrepancies/negative findings on the project, a

memorandum shall be issued by the HTDO Department Manager to the General Manager thru the AMO/Regional Office Head concerned, and POSSO recommending corrective measures. The contractor/developer may request for another inspection after corrective measures have been made. Non-compliance to the recommended corrective measure within the specified time frame will result in the revocation of AITECH certificate.

8.7 The Head of the AITECH Secretariat shall submit to the AITECH Committee a

Summary Report of all NHA housing projects inspected/monitored including its findings/recommendations for proper action.

9. OTHER PROVISIONS

9.1 The technology proponent and/or the contractor concerned shall shoulder the costs of transportation, accommodation, and other incidental expenses of the AITECH Inspection and Monitoring Team in the conduct of inspection.

9.2 Should there be other technologies that will be accredited and which shall be

adopted in any NHA project, the same procedures shall be applied. Likewise, a new set of instructions for compliance during construction shall be issued particular to the said new technology.

EFFECTIVITY This Memorandum Circular shall take effect immediately. For guidance and strict compliance of all concerned. ATTY. SINFOROSO R. PAGUNSAN General Manager Date Approved: _____________________

CHECKLIST FOR CONSTRUCTION

1. PROJECT SITE INFORMATION DETAILS 1.1 Project Name: __________________________________________________________ 1.2 Date Inspected: __________________________________________________________ 1.3 Project Location: __________________________________________________________ 1.4 Name of Developer/Contractor: ______________________________________________ 1.5 Block / Lot: ______________________________________________________________ 1.6 Type of Dwelling 1.7 Type of Technology Used Monolithic Unit/Box ¨ Heavy ¨ Light Total System (Panels) ¨ Structural Frame ¨ Structural Panels ¨ Infill Panels Structural System (Frames) ¨ Frame ¨ Bearing Special On-Site Techniques ¨ Tunnel Form ¨ Slip Form ¨ Jack Block ¨ Lift Slab ¨ Accelerated Cure ¨ Special Mortar Conventional Techniques ¨ Others ¨ _____________________________________ (if using New Technology/AITECH-Approved Technology) Name of Technology:______________________________________________ Name of Supplier:________________________________________________

1.8 Site Condition 1.9 Is the site free from any foreign debris? Yes No (Provide description with pictures) 1.10 Compaction Test for Filling Materials 1.10.1 Compaction Test Result______________________________________ 1.10.2 Name of Testing Company____________________________________ 1.10.3 Address of Testing Company__________________________________

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One Storey Loftable Low Rise Building

Row house

Duplex

2-Storey

3-Storey

Cut

Infill

Mechanically Compacted

- By how many percent? %

1.10.4 Name of Representative NHA Representative _____________________________________ Contractor Representative ___________________________________ 1.10.5 Date When the Test Was Conducted __________________________ Note : The Developer shall provide a copy to the inspector the Official Test result with a DPWH Accreditation Certificate of the Testing Center. 2. FOUNDATION WORKS (use DPWH and NHA certified plans as reference) 2.1 Grade Beams and Slab on Fill

2.2 Wall Provisions 2.3 Plumbing and Electrical Rough in 3. WALL PANELS (use DPWH-APPROVED plans as reference)

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RECOMMENDED MARK (Correct/Incorrect) REMARKS

Sizes of Beams

Thickness of Slab

Diameter of Bars

Spacing of Bars


Starter Bars spacing

Length of Starter Bars

Starter Bar Diameter


Size of Embedded Pipes

Electrical

Plumbing

Spacing


Spacer Distances (if applicable)

Frame Distances (if applicable)

Frame Thk. (if applicable)

Cladding material (if applicable)

Cladding thk. (if applicable)

Dia. & Spacing of Hor. Bars

Dia. & Spacing of Vert. Bars


Corner Reinforcing Bars

Size

Spacing

Ties

BOND BEAMS RECOMMENDED MARK (Correct/Incorrect) REMARKS

Reinf. Bars Installation

C-Bars/Stirrups Installation

ROUGHING INS RECOMMENDED MARK (Correct/Incorrect) REMARKS

Electrical

Plumbing

4. CONCRETE POURING

4.1 For manual pouring checklist

Note:

4.1.1 Use Rubber mallet during concrete pouring to avoid honeycomb

4.1.2 Clean the outer face of the walls right after concrete pouring

4.2 Concrete Mixture

4.3 Concrete Testing

Name of Testing Company _________________________________________________

Address of Testing Company _________________________________________________

Name of Representative

NHA Representative _________________________________________________

Contractor’s Representative _________________________________________________

Date When Test Was Conducted ________________________________________________

5. COMMENTS AND RECOMMENDATIONS

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

(Provide Photos with captions)

Prepared by: Reviewed by:

________________________________ _________________________________

Project Engineer in Charge of Construction Principal Engineer A / Principal Architect

Concurred by:

___________________________

Project Manager

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Length of Rebar Hook & Splice

FOR LOFTABLE ROWHOUSE MODELS

Dowels RECOMMENDED MARK (Correct/Incorrect) REMARKS

Dia. & Spacing of Dowels

Length

ONE BAGGER MIXER MIXING BOARD 30CM X 30CM X 30CM MEASURING BOX


Approved Mixture

RECOMMENDED RESULT REMARKS

Slump Test

Compression Test

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NOTES _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________

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NOTES _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________ _______________________________________________________

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