Roof Ice And Water Shield Code

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.

Roof ice and water shield code.

Many local building codes require ice and water shield and national building code states ice and water shield must start at the roofs eave edge and extend 2 ft inside heated wall space of a structure. Roofing ice and water shield is a critically component to any new roofing system especially in cold weather climates. The eaves flashing shall be installed from the end of the deck to a minimum of 24 inches up the slope. A 4 12 roof slope means the roof rises 4 feet for every 12 feet of horizontal roof span.

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. Eaves flashing is required to prevent ice formation at the eaves and gutter to back up beneath the roof covering. Ice and water shield. 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.

Note that r903 r904 and r905 1 and their respective subsections apply to all roofing types unless indicated otherwise. The provisions of 780 cmr 15 00. On roofs with slope equal to or greater than eight units vertical in 12 units horizontal 67 percent slope the ice barrier shall also be applied not less than 36 inches 914 mm measured along the roof slope from the eave edge of the building. A roofing membrane that is field applied using one layer of.

This code implies that ice and water shield eaves flashing is required for installation on all heated steep slope structures exception is unheated structures in colder climates. Code 675 iac 14 4 4. Sps 321 28 5 5 other roof coverings. Rise of the roof to the horizontal run and is expressed as a fraction.

Allows water to drain from a roof. Roof assemblies and rooftop structures 780 cmr 1501 0 general 1501 1 scope. 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. Roof slopes between 2 12 and 4 12 can use shingles but require roof application techniques to take into account a greater potential for ice dam water backup.

Sps 321 28 4 b b the ice dam protection shall extend at least 30 inches up the roof slope from the roof edge and at least 12 inches up the roof slope beyond the inner face of the exterior wall. The 2020 indiana residential code adopts and amends the first printing of the 2018 international residential code.