insulation

[stuart11]

hi all have stripped the inside of my 40 footer and wish to use insulation between the steel roofing and the new ply i shall be putting up, is there such a spray on stuff that some one was talking about if so would any one no the name or no if it works thanks stuart ...

Edited August 15, 2008 by NB Alnwick
duplicate topics merged.

[alan_fincher]

I believe that whilst you can buy aerosol type products to spray small areas of insulation, it would not be practical/economic to do large areas like the entire roof.

 

Your options are, I believe, either to pay for professional spray-foaming (not cheap), or to look for another method.

 

"Rockwool" type insulation, (probably in the form of cavity wall batts), is nearly as effective, massively cheaper, and, most importantly, something you can do yourself very easily.

 

I'll not duplicate this reply in to the other 2 duplicate posts!

 

Alan

[NB Alnwick]

Duplicate posts/topics removed.

[blackrose]

I think that bonding Kingspan to the steel with a PU sealant such as Marineflex is the best DIY option. The seams/gaps between the sheets of Kingspan can be filled by hand with cans of fire-rated sprayfoam (have a look on ebay). Aluminium tape can also be used for seams.

[greywolf]

There is a natural woolen one that was mentioned on it's not easy being green but i am not sure if it is suitable for boats.It comes in a kind of compressed form which you can cut or saw to the disired size. www.secondnatureuk.com

Edited August 16, 2008 by greywolf

[jayjayranger]

google froth pack

[Lingy]

8'x4'x1'' sheets of celotex for 12 quid a sheet would do you

 

http://cgi.ebay.co.uk/CELOTEX-KINGSPAN-TP1...id=p3286.c0.m14

 

simply bond it the roof then cover it

Edited August 16, 2008 by Lingy

[Rick-n-Jo]

There is a natural woolen one that was mentioned on it's not easy being green but i am not sure if it is suitable for boats.It comes in a kind of compressed form which you can cut or saw to the disired size. www.secondnatureuk.com

 

I asked the manufacturers, they said no. Because it's intended to breathe, like in timber framed buildings, so would allow water vapour to reach the steel causing damp and mouldyness.