Roof Sheathing Requirements For Concrete Tile

At tricky areas such as around roof vents chimneys and skylights self adhesive bituminous membrane can help achieve a watertight seal.

Roof sheathing requirements for concrete tile.

Roof sheathing fastening secondary water barriers. See special installation requirements of manufacturer and irc. Clay and concrete tile roof systems installed as required by the florida. 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.

Mortar set or attachment to a ridge board. Class a roof assemblies include minimum 16 ounces per square foot copper sheets installed over combustible decks. Underlayment for asphalt shingles clay and concrete tile metal roof shingles mineral surfaced roll roofing slate and slate type shingles wood shingles wood shakes and metal roof panels shall conform to the applicable standards listed in this chapter. Where it can be demonstrated by code adoption date documentation and permit.

The concrete and clay roof tile installation manual gives guidance on two attachment methods for hip and ridge tiles. Tiles weighing less than 9 pounds per square foot shall have a minimum of one fastener each regardless of roof slope. On the basis of post disaster field in vestigations use of a ridge board is recommended. 1 through 201 3 64 shall be accepted as meeting the mandated roof to wall retrofit requirements.

Wind concrete and clay roof tile installation manual has been updated to comply with asce 7 16. All joints shall be lapped a minimum of 2. 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. The metal and underlayment shall be joined with a bed of flashing cement and a 4 strip of asphalt saturated cotton or fiberglass fabric.

Roof slopes between 2 and 12 and up to 4 in 12 require double underlayment as detailed in table 905 1 1 2. I found the local building codes for crickets and saddles are quoted as. Two new tables have been added. Otherwise the roof is concrete tile.

Underlayment materials required to comply with astm d226 d1970 d4869 and d6757 shall bear a label indicating compliance to the standard. R902 2 fire retardant treated shingles and shakes. Corrosion resistant roof nails or fasteners of compatible metals. The metal shall be fastened 6 on center with 12 ga.

The underlayment should lap over hips and ridges 12 inches in each direction and turn up vertical surfaces a minimum of 4 inches figure 2 20. Minimum 2 in 12 for clay and concrete tiles. 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.