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.

I found the local building codes for crickets and saddles are quoted as. 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. Roof sheathing fastening secondary water barriers. Minimum 2 in 12 for clay and concrete tiles.

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

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. Cricket or saddle coverings shall be of sheet metal of the same material as the roof covering. On the basis of post disaster field in vestigations use of a ridge board is recommended.

See special installation requirements of manufacturer and irc. 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. 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.

Corrosion resistant roof nails or fasteners of compatible metals. 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. The metal shall be fastened 6 on center with 12 ga. 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.

The concrete tile roof has two saddle structures that are made of rolled peel and stick roofing. Clay and concrete tile roof systems installed as required by the florida. Underlayment materials required to comply with astm d226 d1970 d4869 and d6757 shall bear a label indicating compliance to the standard. Mortar set or attachment to a ridge board.

Two new tables have been added. Roof slopes between 2 and 12 and up to 4 in 12 require double underlayment as detailed in table 905 1 1 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.