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Technical
recommended insulation for a bay
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<blockquote data-quote="Humphrey" data-source="post: 320420" data-attributes="member: 16005"><p>Dynamat isn't a thermal insulation it's just for sound deadening. But regarding adhesion, I think the answer is in your post when you say...dynamat "type" material. There are a lot of poor substitutes out there including some folk who will state that you can get the same results using everything from flash tack to roofing tiles! - like most things in life, you get what you pay for. If you use genuine Dynamat applied as directed and make sure you rub the surface down well with ethyl alcohol or white spirits first you wont have any problems with sagging. One other tip, for very large areas like the roof, you don't need to cover the whole surface. Squares of about 1.5 x 1.5 ft works great and wont put too much weight where you don't want it. HTH's!</p></blockquote><p></p>
[QUOTE="Humphrey, post: 320420, member: 16005"] Dynamat isn't a thermal insulation it's just for sound deadening. But regarding adhesion, I think the answer is in your post when you say...dynamat "type" material. There are a lot of poor substitutes out there including some folk who will state that you can get the same results using everything from flash tack to roofing tiles! - like most things in life, you get what you pay for. If you use genuine Dynamat applied as directed and make sure you rub the surface down well with ethyl alcohol or white spirits first you wont have any problems with sagging. One other tip, for very large areas like the roof, you don't need to cover the whole surface. Squares of about 1.5 x 1.5 ft works great and wont put too much weight where you don't want it. HTH's! [/QUOTE]
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Technical
recommended insulation for a bay
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