Roof Sheathing Requirements For Concrete Tile

On the basis of post disaster field in vestigations use of a ridge board is recommended.

Roof sheathing requirements for concrete tile.

Clay and concrete tile roof systems installed as required by the florida. R902 2 fire retardant treated shingles and shakes. I found the local building codes for crickets and saddles are quoted as. 1 through 201 3 64 shall be accepted as meeting the mandated roof to wall retrofit requirements.

All joints shall be lapped a minimum of 2. The concrete tile roof has two saddle structures that are made of rolled peel and stick roofing. Tiles shall be installed in accordance with the manufacturer s installation instructions in areas where the wind speed exceeds 100 mph and where the roof is located more than 40 feet above grade. Wind concrete and clay roof tile installation manual has been updated to comply with asce 7 16.

Minimum 2 in 12 for clay and concrete tiles. For attachment of the board refer to table 21 in the addendum to the concrete and clay roof tile. The concrete and clay roof tile installation manual gives guidance on two attachment methods for hip and ridge tiles. Class a roof assemblies include minimum 16 ounces per square foot copper sheets installed over combustible decks.

Underlayment materials required to comply with astm d226 d1970 d4869 and d6757 shall bear a label indicating compliance to the standard. Roof sheathing fastening secondary water barriers. Additionally the prescriptive fastening requirements for wood structural panel roof sheathing in section r803 2 of the fbcr have been updated to comply with asce 7 16. Mortar set or attachment to a ridge board.

At tricky areas such as around roof vents chimneys and skylights self adhesive bituminous membrane can help achieve a watertight seal. Cricket or saddle coverings shall be of sheet metal of the same material as the roof covering. The metal shall be fastened 6 on center with 12 ga. Otherwise the roof is concrete tile.

Corrosion resistant roof nails or fasteners of compatible metals. Two new tables have been added. The metal and underlayment shall be joined with a bed of flashing cement and a 4 strip of asphalt saturated cotton or fiberglass fabric. Tiles weighing less than 9 pounds per square foot shall have a minimum of one fastener each regardless of roof slope.

See special installation requirements of manufacturer and irc. Class a roof assemblies include ferrous or copper shingles or sheets metal sheets and shingles clay or concrete roof tile or slate installed on noncombustible decks. Roof slopes between 2 and 12 and up to 4 in 12 require double underlayment as detailed in table 905 1 1 2.