Solid Tile Roofs Be Installed Over Solid Sheathing

Solid tile roofs should not be installed over solid sheathing.

Solid tile roofs be installed over solid sheathing.

Also according to modern building codes concrete and clay tiles may be installed on roofs with slopes of 2 12 and greater although roofs with slopes of 4 12 and less must have a double layer of underlayment. If you want new asphalt shingles installed then solid sheathing must be applied first. The flashing that goes between the roof covering and the sheathing around the roof s perimeter is called flashing. Step sheathing can then be applied over the solid sheathing as needed.

Fasteners made of are recommended for tile roofs. It is intended to be installed over a solid roof decking with a built up hot mopped or cold process roofing membrane which provides the water proofing. 1 x 4 or similar sized boards are nailed at 90 degrees to the rafters leaving a space of about 4 between each row and allowing for better ventilation. What does that mean.

According to modern building codes concrete and clay tiles may be installed over either solid or spaced roof sheathing. When a cedar shake roof needs replacing the shakes should be removed and the skip sheathing sheeted over with solid plywood. With shrinkage of 5 10 percent gaps of another a half inch begin appearing all over your roof. Tiles were designed so that lugs or short protrusions on the top backside of each tile would hook over the step sheathing.

Whenever your roof was first installed the nails were put into the solid wood. The roof that you have in your photo originally had a cedar shake roofing system installed on the batts and at sometime an idiot installed concrete tile. The sheathing must be strong enough to support the required loads between rafters. Be sure that the roofer uses rated sheathing.

The normal base for shake shingle and some tile roofs. This can be exterior grade plywood or oriented strand board osb. Both the irc and ibc call for asphalt shingles to be installed over solid sheathing. Most is rated by the apa the engineered wood association base right here in the puget sound region.

More recently however most roofers recommend solid sheathing on the roof to give the house additional resistance to movement or shear strength. Lumber wasn t kiln dried so it would shrink upon drying.