cathedral ceiling insulation issue


Old 06-20-05, 11:21 AM
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Question cathedral ceiling insulation issue

I need to put insulation in a cathedral ceiling in my attic. i have been told that i need to have ventilation space between the roof and the insultion. How do I do this? And the spaces between the rafters is 18.5 inches i have found that insulation comes in 23 or 15 inch widths, what do I do? I Am feeling that a simple job is turning into a nightmare. Help
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Old 06-22-05, 07:22 AM
Join Date: Nov 2001
Location: USA
Posts: 1,873

This is a fairly easy to read lecture on ventilation and the different ways to accomplish adequate free venting, even with cathedral ceilings.

As far as the insulation size is concerned, most retail store will not carry odd sizes. It does not mean that manuacturers do not make it. I recommend you go to or search for insulation manufacturers and request the size you require. Then ask them for the nearest distributor in your area so you can pick it up.

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