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Old 20 December 2015, 13:03   #21
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Easy on new build PD, not so retro and under an existing floor as Boggy is proposing.
Also, in my experience, try getting a builder to operate in such detail.
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Old 20 December 2015, 13:09   #22
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Originally Posted by Mollers View Post
Easy on new build PD, not so retro and under an existing floor as Boggy is proposing.

Also, in my experience, try getting a builder to operate in such detail.

In that case I'd probably go for the multi layer foil & a good staple gun with stainless staples, more bang for your buck & easier to wrestle in a confined space. Our local cannabis growers are very generous with their fly tipped foil insulation, I've done the loft out in the old part of the house gratis thanks to them😎
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Old 20 December 2015, 14:56   #23
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Its kind of difficult to judge without knowing the construction details, but removing the chipwood floring, as then You can operate from the top, might be considering the total workload a good idea.

I like XPS over other foams because it (practically speaking)just don't collect any
moisture in any conditions, PU foam is not nearly as good in that respect.

Rockwool is OK, but much more work as one should use both windstopper(below) and air seal(on top) of insulation + something to carry the wool between the beams.
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Old 20 December 2015, 15:05   #24
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Country: Finland
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Boat name: SR 5.4
Make: Avon
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Join Date: Oct 2009
Posts: 896
Its kind of difficult to judge without knowing the construction details, but removing the chipwood floring, as then You can operate from the top, might be considering the total workload a good idea.

I like XPS over other foams because it (practically speaking)just don't collect any
moisture in any conditions, PU foam is not nearly as good in that respect.

Rockwool is OK, but much more work as one should use both windstopper(below) and air seal(on top) of insulation + something to carry the wool between the beams.
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