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What are the codes foam in Fletcher oh

Customer Question
What are the codes for...
What are the codes for spray foam in Fletcher oh
Submitted: 2 years ago.Category: Home Improvement
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Answered in 5 minutes by:
8/12/2015
Home Improvement Expert: Rick, General Contractor replied 2 years ago
Rick
Rick, General Contractor
Category: Home Improvement
Satisfied Customers: 23,017
Experience: Licensed construction supervisor with 35+ yrs. experience.
Verified

I'm not sure what you're looking for. Required R (insulation thickness) rating for your area? Something else?

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Customer reply replied 2 years ago
I'm looking for thermal barrier requirements for spray foam in a pole building that's used for storage and workshop
Home Improvement Expert: Rick, General Contractor replied 2 years ago

foam plastic shall be separated from the interior of a building by an approved thermal bar-

rier consisting of 1/2 -inch (12.7 mm) gypsum wallboard or

equivalent thermal barrier material that will limit the aver-

age temperature rise of the unexposed surface to not more

than 250 °F (121°C) after 15 minutes of fire exposure in

accordance with the standard time-temperature curve of

ASTM E 119 or UL 263. The thermal barrier shall be

installed in such a manner that it will remain in place for not

less than 15 minutes based on a test conducted in accor-

dance with UL 1715

.

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Home Improvement Expert: Rick, General Contractor replied 2 years ago

The exception being 1 story buildings with automatic sprinklers:

Exterior walls—one-story buildings. For one-story buildings, foam plastic having a flame spread

index of 25 or less, and a smoke-developed index of not

more than 450, shall be permitted without thermal barri-

ers in or on exterior walls in a thickness not more than 4

inches (102 mm) where the foam plastic is covered by a

thickness of not less than 0.032-inch-thick (0.81 mm)

aluminum or corrosion-resistant steel having a base

metal thickness of 0.0160 inch (0.41 mm) and the build-

ing is equipped throughout with an automatic sprinkler

system in accordance with Section 903.3.1.1

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Rick
Rick
Rick, General Contractor
Category: Home Improvement
Satisfied Customers: 23,017
23,017 Satisfied Customers
Experience: Licensed construction supervisor with 35+ yrs. experience.

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