Designing Green Buildings WithSt t l I l t d P lStructural Insulated Panels

Tom Milton, Technical Director, WoodWorksJoe Pasma PE, Premier Building Systems

Wood Products Council is a Registered Provider with TheAmerican Institute of Architects Continuing EducationSystems. Credit earned on completion of this program will bereported to CES Records for AIA members. Certificates ofCompletion for non-AIA members are available on request.

This program is registered with the AIA/CES for continuingprofessional education As such it does not include contentprofessional education. As such, it does not include contentthat may be deemed or construed to be an approval orendorsement by the AIA of any material of construction or anymethod or manner of handling, using, distributing, or dealingin any material or product. Questions related to specificmaterials, methods, and services will be addressed at theconclusion of this presentation.

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Wood Products Council

A Special Thanks--to the following people and companies for sharing slides,photos and advice in preparing this presentation:

Joe Pasma, PE Premier Building SystemsBill Wachtler Structural Insulated Panel AssociationC S

Acknowledgements

Curt Stendel Panelworks Plus Inc.Terry Dieken Extreme Panel TechnologiesJohn Calkins Pacemaker\Plymouth FoamRon Gleysteen Enercept Inc.Al Cobb SIP SchoolAPA-The Engineered Wood Association

Thank You!

Learning Objectives

Participants will understand what SIPs are, and how theyare constructed.

Participants will understand why SIP's benefits make theman appropriate choice for many building applications.

Participants will be able to visualize how a SIP building isconstructed and contrast SIP building details to aconstructed and contrast SIP building details to aconventional wood framed building or non-wood building.

Participants will understand the codes, standards,performance testing, and certification procedures thatpertain to SIPs

Participants will understand structural capabilities of SIPsincluding representative spans and loads.

Joe Pasma, PE - Background

BCE and MCE from the University of MN Registered PE Licensed General Contractor in MN for over ten years. 1984 1992 consulting engineering firms in the Minneapolis, MN

1992 t t d k i th SIP i d t 1992 started work in the SIP industry AFM Corporation / R-Control as structural engineer

1997 - 2006 general contracting business in the Minneapolis - SaintPaul, MN market. Sold and installed SIPs and ICFs.

Sales engineer for Premier Building Systems from 1999 -2002. May of 2007 Premier Building Systems Technical Manager

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Tom Milton - Background

BS-Forestry, U of MN MS-Forest Products & Adult Education, U of MN 25 years Forest Products Specialist, University of Minnesota

Extension Service 3 years Engineered Wood Specialist MN Territory APA The 3 years, Engineered Wood Specialist, MN Territory, APA- The

Engineered Wood Association 2009 to present, Technical Director, WoodWorks-North Central

Structural Insulated Panel Association

The Structural InsulatedPanel Association (SIPA) is anon-profit associationrepresenting manufacturers,suppliers, fabricator/distributors, designprofessionals, and buildersp ,committed to providingquality structural insulatedpanels for all segments of theconstruction industry.

www.sips.org

SIPs are composite, highperformance, self-supporting,structural building panelswith an insulating core ofrigid foam usually EPS andstructural facings or skinsstructural facings or skins,most commonly of 7/16 thickoriented strand board (OSB).

Where do you use SIPs?

Typically, the exterior envelope is where SIPs are usedInsulated floors, walls and roofsResidential and non-residential buildings

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History of SIP Development

1930s FPL developed Stress Skin PanelsFL Wright creates/uses non-insulated plywood sandwich panels

1950s Alden B.Dow experiments w/ foam plastic & plywood sandwich panels1960s Alside Home introduce production improvements1980s OSB Introduced, a number of manufacturers producing SIPs1990s SIP Automation, SIPA formed by SIP Mfgrs2000s CAD/CAM Integration, Approx 75 US SIP Mfgrs

Development of stressed-skin panels for buildings began in the 1930s.Engineering and durability testing was conducted at the Forest ProductsLaboratory (FPL) in Madison, Wisconsin, a facility operated by the U.S.Forest Service.

FPL tested the concept of using skins to carry a portion of structuralloads by building a small house in 1937. Wall studs in the panels werey g p3/4 x 2 , rather than the usual 2 x 4. First Lady Eleanor Rooseveltdedicated the house, and the structure is currently a daycare center runby the University of Wisconsin.

FPL scientists reasoned that if skins could take part of the structuralloads, maybe they could eliminate framing entirely. Engineering theorywas developed and tested, and a complete structure was built in 1947using corrugated paperboard. This structure was heated, humidified,and exposed to Wisconsin weather for 31 years.

The structure was disassembled periodically for testing to observeThe structure was disassembled periodically for testing to observechanges in panel stiffness, and bowing was minimal. In 1969 foamcores were introduced to form the modern structural insulated panel.

Building Panels

Include many configurations and names:

Foam-core panels Stress-skin panels

May or may not bestructural* andM b Nail-base panels

Sandwich panels Curtain-wall panels

May or may not beinsulated*

*key to SIPs

Rigid Foam Insulation

Structural Facings

Structural Adhesive

Optional Electrical Chases

Also included in EPS- insectinhibitor, and flame retardant

RIGID FOAM CORE

Material may be:

Expanded Polystyrene (EPS)-85% f SIP85% of SIP cores

Extruded Polystyrene (XPS)

Polyurethane

Polyisocyanurate

STRUCTURAL FACINGS

Although OSB is most common, material may beplywood, FRP, metal, or cementious composites

Metal Cementitious/Composite

Combining the efficiency ofpanelization and accuracy of machinecut panels in creating 5 buildingelements all at once:

1) Structural Assembly

SIPs RTA Panelized System

2) Insulation3) Air Barrier and Vapor Retarder4) Wire chases included5) Flat Nailable Surfaces for interiorand exterior finishes

SIPs are built for speed!

Why Use SIPs?Super Strength

A SIP is somewhat like an I-Beam

I- Beam Web = SIP CoreI-Beam Flanges = SIP Skins or Facings

Why Use SIPs?Super Strength

A tornado in Tennessee: Entire neighborhooddemolished, but SIP house still standing, andno broken dishes!

January 1995-Kobe, Japan7.2 magnitude earthquakeDamage over $100 billionSix SIP homes Suffered NOstructural damage

Why Use SIPs?Super Strength

1998-Clermont, GeorgiaThis SIP house survived atornado with superficial damagewhile 27 conventional housesaround it were destroyed.

Oak Ridge National LaboratoryWhole Wall R-Value Study

4 SIP wall rated at R-14out performs 6 stud wall

ith R 19 fiberglass

Why Use SIPs?Energy Savings!

* 2X6 @24" o.c.; with batts with rounded shoulders, 2% cavity voids, no compression aroundwiring, paper facer stapled to inside of stud

with R-19 fiberglass

Less thermal bridging,

No convective loops

*

Why Use SIPs?Energy Savings!

ORNL blower door testsreveal that SIP test roomsare15 times more air-tightthan stick framedcounterparts

50-70% annual savingsover Model Energy Code

Framing factor:

3% SIP house vs

15-25% stick built house

Why Use SIPs?Energy Savings!

If your client wants energy efficiency use SIPsMany studies substantiate the energy efficiency of SIPsUp to 40% of a homes heat loss is due to air leakageSIPs have demonstrated amazingly low blower door testresults when properly sealedBased on the reliable performance of SIPs, ENERGY STARBased on the reliable performance of SIPs, ENERGY STARfor homes has eliminated the required blower door test forSIP homes to meet ENERGY STAR standards

SIPs SAVE Energy!

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Universal Assembly

A typical SIP wall is bi-laterally symetrical theresistance to vapor flow is identical from one side of thepanel centerline to the next.

SIPs are forgiving if they get wet assuming that theyare not covered either inside or outside with a non-breathing or fully adhered impermeable membrane.

SIP buildings are well suited for all climate types

SIPs-Advantages For Contractors

Fewer man hours per building SIP installation easy to learn Speed of construction-60% fasterthan stick frame construction Pre-engineered with all

i d /d i h d

SIPs Save Time, Labor and Money!

window/door openings, headers,and point loads accounted for Minimal framing needed Faster weatherproofing reducesmoisture exposure for all products Integrates easily with otherbuilding systems

SIPs-Advantages For Contractors

Shell enclosed and dried in quickly-subs starts sooner, finish faster

Electrical chases provided Drywall hangs faster: no nail pops,no cracks, no callbacks

SIPs Save Time, Labor and Money!

Uniform & straight nailing surfacesTrim labor reduced Less pilferage of materials Less jobsite waste Less temporary heat required Temporary electrical reduced Smaller HVAC equipment required

When do you use SIPs?

If your builder