Structural Insulated Roof in some areas are few and far between. I, fortunately, never had to repair a SIR. Though they have been used for many years I have not seen many. I personally had serious concerns starting 30+ years ago about longevity and repairs.

Ran across this link that may be of interest to others for future reference.
It deals with the concern of vapor getting into the OSB roof surface.

How to Make a SIP Roof Better | GreenBuildingAdvisor.com

Some questions that we all look to answer.
Following is from: Structural Insulated Panel Association (SIPA)
http://www.sips.org/technical-information-2/faqs
-What about roofing? Does a building with a structural insulated panel roof need to be ventilated?
-Do roofing manufacturers warranty asphalt shingles over structural insulated panel roofs?
-Does a building with a structural insulated panel roof need to be ventilated?

As this system have expanded into many areas of the country that have varying degrees of humidity we will be looking for roof problems more closely on the SIP roof systems.

I am now rethinking what I have to say about the SIP roof system for the future.

Jeff Spencer raised the ventilation question in Feb of 2011 .
http://www.inspectionnews.net/home_i...ted-panel.html


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