Roofing Felt Requirements In Hawaii

15 pounds per hundred square feet and 30 pounds per hundred square feet.

Roofing felt requirements in hawaii.

Modern building code requirements. Drip edge at eaves shall be permitted to be installed either over or under the underlayment. For many years roofers used asphalt saturated felt under roofing shingles and it was historically available in two standard weights. The felt shall extend over the base flashing 2 inches 51 mm.

After this lines should be snapped every 34 as you move up the roof. Vertical joints should lap a minimum of 4 inches and be offset by at least 6 feet in successive rows see figure 2 2 at left. Chalk lines should be snapped 33 5 8 above the eave line. Eave drip edges shall extend 1 2 inch 13 mm below sheathing and extend back on the roof a minimum of 2 inches 51 mm.

The engineering and design of our buildings improve over time as our knowledge increases. Island of hawaii island of oahu island of kauai islands of molokai and lanai island of maui. The best weight for roofing felt is the 30 pound product because it provides thicker and stronger footing for. Learn how to find the square feet of you roof.

Chimneys stucco or brick walls shall have a minimum of two plies of felt for a cap flashing consisting of a 4 inch wide 102 mm strip of felt set in plastic cement and extending 1 inch 25 mm above the first felt and a top coating of plastic cement. And have made a series of short videos to show the pros and cons of each type of material. On roofs with a slope of 4 12 or greater use a single layer of 15 lb. The 15 pound was for lighter weight projects while the 30 offered more heavy duty protection.

Asphalt saturated heavy duty roofing felt is available in 15 and 30 pound weights. Before laying roof felt all rotten decking must be replaced. 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. 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.

Leakmaster roofing installs all these best selling materials. Hawaii s past hurricanes that made landfall iniki 1992 and iwa 1982 have shown that hawaii s older houses are more vulnerable to major structural failure from wind forces. Approved building codes state building code state electrical code state elevator code state energy conservation code updated 03 31 2017 state fire code state plumbing code state residential code wind topographic factor maps for use with the state building code. Provide drip edge at eaves and gables of shingle roofs.

Overlap to be a minimum of 3 inches 76 mm. Asphalt saturated felt starting at the eaves and lapping upper courses over lower by a minimum of 2 inches. Comparing roof prices in hawaii is as easy as 1 2 3.