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Building Codes and Inspections/Fire resistance of insulation material


In a earlier forum I read someone asking whether or not placing shredded paper in their attic as insulation was safe and align with building codes. my question is somewhat in line with what they were asking. Is there a section in the international building codes that regards to the fire resistance of a given insulation material? In other words, what codes do I follow when choosing whether an insulation material is safe to place in my home?

Blown in cellulose insulation is common, as is insulation made from shredded blue jeans, recycled products.  As far as I know, all similar type insulation products are treated with a fire retardant, the documentation of which is available on the manufacturer's websites.

Section R302 of the ICC International Residential Code mandates smoke and flame spread characteristics for the various types of insulation. There are similar requirements in the International Building Code for other than on and two family dwellings and townhomes.  

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Keith Fuller


I'm an ICC Certified Master Code Professional fielding general building code questions. My experience has been heavy in fire related issues.


I've been employed since 1985 as an inspector and plan reviewer, and am a municipal Assistant Building Official and Deputy fire Marshal. I've had fire service experience since 1972, having served as a three time Fire Chief and Fire Marshal in years past. The increasing workload, mandatory certifications, and continuing education requirements in recent years have caused me to concentrate my efforts on code related issues. I hold national fire service certifications as well.

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