Roof Sheathing For Tile Roofs

According to modern building codes concrete and clay tiles may be installed over either solid or spaced roof sheathing.

Roof sheathing for tile roofs.

This above sheathing ventilation or asv inherent to tile roof installations can be enhanced using counter battens shims or manufactured systems to. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Roof sheathing requirements underlayment roofing felt requirements under wood shingles shakes using a shingle course felt interlayment on wood roofs using. That will suffice on a roof with rafters set 16 inches apart with minimal roof loads.

Sheathing should be a minimum of 19 32 inch thick. Will prolong the life of the battens and underlayment by allowing any trapped water to easily drain down the roof and water will definitely penetrate concrete and clay tiles. Commonly used for shingle shake or tile roofs. Tiles were designed so that lugs or short protrusions on the top backside of each tile would hook over the step sheathing.

Minimum roof slope 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. Zip system sheathing and tape provides a water resistant durable underlayment for many finished roof coverings including metal tile and asphalt shingles fiberglass shingles and cedar shingles. The international codes i codes are the widely accepted comprehensive set of model codes used in the us and abroad to help ensure the engineering of safe sustainable affordable and resilient structures. Underlayments play a key role in tile roofing since most tile roofs are not completely waterproof.

The international code council icc is a non profit organization dedicated to developing model codes and standards used in the design build and compliance process. 8d ring shank nails should be used instead. The spacing was to permit air to circulate under the shakes and shingles particularly shingles. This space reduces heat transfer and allows heat buildup to dissipate from the sheathing and roofing materials.

43 felt lapped 2 inches on horizontal joints and 6 inches at end laps. Increases airflow between the tiles and roof sheathing which could reduce cooling loads by a modest degree. Tile roofs have an air space between installed roof tiles and the roof sheathing. Zip system panels install fast and stay flat for a roof that looks as good as it performs.

This article discusses the requirements specifications for roof sheathing nailers or plywood or osb and underlayment roofing felt for wood shingle wood shake roofs including roof decking needed under wood shingles shakes. Never attach roof sheathing with staples. Because of the long service life of tile a long lasting underlayment should be used as well. Most roofs will be sheathed in plywood at least 3 8 inch thick.