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I am looking for a rigid based insulation to put under a steel sheet roof. As this is a car showroom I do not wanting sagging blanket or spray foam insulation, I am looking for a nice finish underside (maybe a sandwich board?) without the need for a false ceiling.
Can you help me with a manufacturer of such a product.
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We use ISO board for our rigid insulation. I believe it is spelled polyisocyanurate. It comes in 4x8 sheets and you can get it with OSB or plywood already glued to one side. Usually on decorative wood (usually 2x6 tongue groove) we put a ice and water shield over that to keep it dry while our work progresses. We put the ISO board over the underlayment with our OSB or plywood over that. We then put underlayment over that and proceed with our metal work. The ISO board and plywood needs to be put on with stress plates and the right length screws.
Any lumber yard or roofing distributor can get the ISO for you. You can get the ISO board in thicknesses anywhere from one half inch to several inches thick. Most of our work calls for a 3" thick insulation but sometimes it is 2".
As a personal preference I do not like the ISO board and OSB to be glued together. It is better to put them on separate so that you can stagger the seams.
6/3/2008
Or copy this URL: https://www.metalroofing.com/spirit/comment/11521/find/6/3/2008
Or copy this URL: https://www.metalroofing.com/spirit/comment/11522/find/Isaiah Industries, Inc.
6/5/2008
Or copy this URL: https://www.metalroofing.com/spirit/comment/11523/find/