Ice And Water Shield Code Iowa

Note that r903 r904 and r905 1 and their respective subsections apply to all roofing types unless indicated otherwise.

Ice and water shield code iowa. It runs along your eaves to help prevent damage from snow and ice but if the back up is substantial enough even new roofs can suffer from the factors mentioned above. Ice shield underlayment reqd. 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. 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.

It is important to consult davenport city code in addition to recognized codes as local amendments to these codes may apply. Ice and water shield roofing ice and water shield is a critically component to any new roofing system especially in cold weather climates. 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. Codes are adopted by ordinance and codified in davenport city 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. 1 833 mean annual temp. Check out more about it here. Adopted may 29 1979 current firm is dated july 19 2000 air freezing index.

The eaves flashing shall be installed from the end of the deck to a minimum of 24 inches up the slope. It is national code to have ice and water barrier on your roof. A good rule of thumb is 1 overhang 3 ice shield. February 26 2019 february 18 2019 by admine.

Ice damming in iowa. However we far exceed that code by doing valleys and flashings as well. If an ice dam occurs on your roof and water backs up under the shingles it will seep down into your home through the nail holes holding the shingles on and into your attic. Eaves flashing is required to prevent ice formation at the eaves and gutter to back up beneath the roof covering.

2 over hang 6 ice shield. Typicaly the code is 1 5 past the exterior warm wall at the gutter lines. 48 6 degrees f see amendment to ibc irc regarding ice shield alternative. The 2020 indiana residential code regulates ice water shield and drip edge as follows.

Codes codified in the davenport city code for building electrical mechanical and plumbing systems are as follows. Po box 65320 west des moines iowa 50265 0320.