2.00 concrete tile roofs - ward & hagenwardhagen.com/samplereportroofsredacted.pdf · ·...

Note: This document is intended for mediation purposes only and is protected by applicable evidence codes.

2.00 CONCRETE TILE ROOFS General Description: Roofs are framed with trusses and fill framing, covered with sheathing. Over the sheathing felt underlayment is installed with Eagle flat and/or “S” profile concrete roof tiles.

2.01 B-vent – storm collar omitted

Overview of omitted storm collar at B-vent Close-up of same Description: Storm collars were not installed at gas “B” vent penetrations. At some locations, at some locations there are gaps between the jack flashing and “B” vent. Resultant Damage: Improper or omitted waterproofing measures allow water intrusion to framing substrates and interior finishes. Applicable Standards:

Construction drawings Architect’s note on sheet G-3 Section 7A (


Industry Standards: 1994 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof. 1997 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof. 1997 Uniform Plumbing Code (UPC) Section 906.5: Joints at the roof around vent pipes shall be made watertight by the use of approved flashings or flashing material.

Investigation Summary:

Address Component Observation Qty

1 Roof - B Vent Storm Collar Omitted 100% 2 Roof - B Vent Storm Collar Omitted 3 Roof - B Vent Storm Collar Omitted 4 4 Roof - B Vent Storm Collar Omitted 4

• Observed defect at 4of 4roofs inspected for defect, or 100% Scope of Repair: • 100% of all homes in case for repair, assume 4 b-vent penetrations per roof. Repair: Note: Perform in conjunction with related roof repair items 1. Remove existing vent cap and save for re-use 2. Install new storm collar directly above secondary flashing 3. Install approved sealant at storm collar to flue 4. Securely reinstall vent cap 5. Paint all exposed sheet metal surfaces to match existing.


2.02 Attic vent – improperly installed

Overview of test in progress at attic vent 5/8” vertical lip only provided at attic vent

Felt bib omitted at attic vent horizontal flange (mastic present) OSB sheathing is stained below attic vent Description: Attic vents were installed without required underlayment bibs provided at base flashing to ensure a weathertight installation. Resultant damage: Improper flashing technique has resulted in water intrusion to the roof underlayment and substrate.


Applicable Standards:

Construction drawings Architect’s note on sheet G-3 Section 7A (

Industry Standards: 1994 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof.

1997 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof. 1997 Uniform Building Code (UBC) Section 1503 Roofing Requirements. …Roofing shall be secured or fastened to the supporting roof construction and shall provide weather protection for the building at the roof.


Concrete and Clay Roof Tile Design Criteria, September 2002, Page 17


Manufacturer’s Literature: MonierLifetile ICBO report # 2656 date June 2001 (page 6 of 6)

Investigation summary:

Address Deficiencies Observations

1 Yes 5/8 inch vertical leg only provided at primary flashing around opening. No bib provided.

2 Yes 5/8 inch vertical leg only provided at primary flashing around opening. No bib provided, OSB sheathing is stained.



• 4 of 4 attic vent locations tested were improperly installed, or 100%


Scope of Repair: • 100% of all homes in case for repair, all attic vent locations per home for repair Repair: Note: Perform in conjunction with related roof repair items 1. Remove tiles at penetration up roof slope a sufficient distance to expose the 1st underlayment lap encountered (assume 3 rows per location and 10% tile breakage). 2. Remove secondary flashing and save for re-use. 3. Provide and install new roof underlayment bibbing properly weather lapped under upslope underlayment lap and properly bibbed over primary vent flashing 4. Replace roof tiles and secondary flashing (as per manufacturer’s recommendations). 5. Paint all exposed sheet metal surfaces to match existing.


2.03 Headwall tile – improperly and/or inadequately attached

Roof tile slipping from position at headwall condition Close-up of same

No mechanical attachment provided at headwall tile Inadequate adhesive used at tile side lap Description: Concrete roof tile at headwall condition inadequately fastened. Resultant Damage: Life-safety issue. Applicable Standards:

Industry Standards: 1989 National Roofing Contractors Association – NRCA Steep Roofing, page 68


Uniform Building Code (1994) Table 15-D-2 attachment requirements for clay or concrete tiles (item 3 and footnote 5)

Uniform Building Code (1997) Table 15-D-2 attachment requirements for clay or concrete tiles (item 3 and footnote 5)


Manufacturer’s Literature: Pioneer Roof Installation Guide, Page 03

Lifetile ICBO report # 2656 dated August 1994


Monier Roof Installation Guide Page 12

Investigation Summary: Visual inspection summary:

Address Component Observation Extent

1 Roof - Headwall Loose slipping 2 Roof - Headwall Loose

Intrusive inspection summary:


1 Yes Headwall tiles are not mechanically fastened and are slipping from position. Inadequate adhesive provided at side lap of headwall tile as attachment.

2 No Headwall tile are attached with nails.

3 Yes Headwall tiles are not mechanically fastened and are slipping from position (50%). Inadequate adhesive provided at side lap of headwall tile as attachment.

• 2 of 3 headwall locations tested were improperly installed, or 100% Scope of Repair: • 67% of all homes in case for repair, all headwall locations per home for repair Repair: Note: Perform in conjunction with related roof repair items 1. Remove headwall tile (assume 10% breakage of tiles) 2. Re-install headwall tiles via wind clip or wire tie per manufacturer’s recommendations.


2.04 Roof tile – fractured and/or unsecured

Field roof tile is fractured, underlayment is exposed Field tile fractured at roof eave, repairs have been attempted Description: Roof tile are cracked/fractured and/or slipping from position Resultant damage: Fractured roof tile allows u.v. rays to diminish life expectancy of roof underlayment while allowing excessive water under roof tile. Broken roof tiles can result in a potential occupant safety risk from tile pieces sliding off roof and causing injury. Applicable Standards:

Manufacturer’s Literature: MonierLifetile ICBO report # 2656 date June 2001 (page 1 of 6) 2.2.1 General: …Cracked or broken tiles must not be installed or allowed to remain on roof.

Investigative Summary:

Address Component Observation Qty

1 Roof - Tile Fractured 30 • Observed in 1 of 3 roofs visually inspected, or 33% of all roofs in the case. Scope of Repair: • 1 of 3 roofs inspected had fractured tile, or 33% • 30 roof tile were fractured at one roof, or 30 tile per roof • 33% of all roofs in case for repair, assume 30 tile per roof Repair: Note: Perform in conjunction with related roof repair items 1. Remove and discard all damaged or cracked tiles 2. Seal all nail penetrations/holes at exposed roof felt prior to installation of new tile 3. Install new like kind and color tile, using approved adhesive (NOT mastic) to secure new tile to

adjacent tile (adjacent tile must be secured with appropriate nail to substrate) 4. Adhesive to be placed at side lap area of tiles.


2.05 Roof felt – damage to roof felt results in damages to underlying materials

Roof felt damaged, repair has been attempted Patch is ineffective, roof sheathing is damaged

Slice at the roof felt at roof field Roof sheathing is stained below slice Description: Areas of roof felt were damaged during installation and not patched and/or inadequately patched prior to installation of the roof tile Resultant damage: Improper installation of the roof felt has allowed water to migrate under the weatherproofing membrane resulting in collateral damages to underlying substrates. Allowing water to migrate beneath the roof felt results in water intrusion into framing cavities and unit interiors; potential mold growth and related potential occupant health safety risks; damage to framing, insulation, & finish materials. Applicable Standards:

Industry Standards: 1994 Uniform Building Code (UBC) Section 1402.1 Weather-resistive Barriers. All weather-exposed surfaces shall have a weather-resistive barrier to protect the interior wall covering. Such barrier shall be equal to that provided for in U.B.C. Standard 14-1 for kraft waterproof building paper or asphalt-saturated rag felt. This standard is listed in Chapter 35, Part II, and is a part of this code. Building paper and felt shall be free from holes and breaks other than those created by fasteners and construction system due to attaching of the building paper, and shall be applied over studs or sheathing of all exterior walls. Such felt or paper shall be applied horizontally, with the upper layer lapped over the lower layer not less than 2 inches (51 mm). Where vertical joints occur, felt or paper shall be lapped not les than 6 inches (152 mm).


1994 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof. 1997 Uniform Building Code (UBC) Section 1402.1 Weather-resistive Barriers. All weather-exposed surfaces shall have a weather-resistive barrier to protect the interior wall covering. Such barrier shall be equal to that provided for in U.B.C. Standard 14-1 for kraft waterproof building paper or asphalt-saturated rag felt. This standard is listed in Chapter 35, Part II, and is a part of this code. Building paper and felt shall be free from holes and breaks other than those created by fasteners and construction system due to attaching of the building paper, and shall be applied over studs or sheathing of all exterior walls. Such felt or paper shall be applied horizontally, with the upper layer lapped over the lower layer not less than 2 inches (51 mm). Where vertical joints occur, felt or paper shall be lapped not les than 6 inches (152 mm). 1997 Uniform Building Code (UBC) Section 1402.2 Flashing and Counterflashing. Exterior openings exposed to the weather shall be flashed in such a manner as to make them weatherproof. 1997 Uniform Building Code (UBC) Section 1503 Roofing Requirements. …Roofing shall be secured or fastened to the supporting roof construction and shall provide weather protection for the building at the roof.

Investigative Summary:


1 Yes Felt slice observed at roof field, OSB sheathing is stained below slice.

2 Yes Hole present at roof felt, OSB sheathing is stained below.

Yes Tear present at roof field, inadequate mastic applied, OSB

sheathing is stained below. • Observed in 2 of 4 homes tested, or 50% of all roofs in the case. Scope of Repair: • Assume 50% of all roofs in the case for repair, 1.5 areas per home for repair Repair: Note: Perform in conjunction with related roof repair items 1. Remove roof tile centered above collateral damages below, assume tile area to be removed is 20 feet by 20 feet, stack tile and save for re-installation (assume 10% breakage).. 2. Locate source of water intrusion (tear) 3. Cut and install a new 4 foot section of 40lb roof felt, center of the existing damaged roof felt and tuck under upper section of felt to create a properly weather lapped installation 4. Reinstall roof tile as per manufacturer’s installation instructions

2.00 concrete tile roofs - ward & hagenwardhagen.com/samplereportroofsredacted.pdf · ·...

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