insulation under a thatch
Information, help and solutions to many issues encountered when converting barns and older buildings

6 posts   •   Page 1 of 1
archedwarrior
Labourer
Labourer
Posts: 3
Joined: Sat Sep 18, 2010 7:58 pm

insulation under a thatch

by archedwarrior » Sat Sep 18, 2010 8:57 pm

Hello all you wise people. I am in the process of renovating a detached rural house with a thatched roof and I need loads of advice please. For starters, can anyone tell me about insulation underneath a thatched roof?

I have removed all internal partitions and ceiling on the first floor to create a huge open plan space with a cathedral ceiling. All supported with oak 'A' frames. At the moment the underside of the thatch is exposed and there is no felt.

So I need a layer of really effective insulation. I am planning on using Thinsulate stapled across the rafters. Then a layer of batons followed by plasterboard.

So here come the questions:

1) is Thinsulate sufficient on its own or should I also use something like Celutex as well? (the rafers are not very deep so it would be difficult to get Celutex in there).

2) Should I get some roofing felt up too?

3) Should I use fire-proof plasterboard?

Thanks people. :lol:

welsh brickie
Project Manager
Project Manager
Posts: 2610
Joined: Sat Apr 12, 2008 8:54 am

insulation

by welsh brickie » Tue Sep 21, 2010 12:51 pm

I would use spraybond insulation
Its fireproof,waterproof,and moulds to any gap making it seamless
and offers high u value insulation

windowsill
Apprentice
Apprentice
Posts: 5
Joined: Fri Sep 17, 2010 3:06 pm

by windowsill » Mon Sep 27, 2010 9:29 am

Seconding that. It's easy to get everywhere...used it myself some time ago...

archedwarrior
Labourer
Labourer
Posts: 3
Joined: Sat Sep 18, 2010 7:58 pm

by archedwarrior » Mon Sep 27, 2010 8:54 pm

Thanks Welshbrickie and windowsill, that is really interesting. I have never heard of this product and all I can find on the net is an adhesive. Is Spraybond something you spray underneath the thatch? Do you know who makes it? Can I put plasterboard underneath? I would really like to know more.

archedwarrior
Labourer
Labourer
Posts: 3
Joined: Sat Sep 18, 2010 7:58 pm

insulation under a thatch

by archedwarrior » Mon Sep 27, 2010 8:55 pm

...also, is Spraybond microporous? I understand that thatch has to be able to breathe?!

welsh brickie
Project Manager
Project Manager
Posts: 2610
Joined: Sat Apr 12, 2008 8:54 am

spraybond

by welsh brickie » Tue Sep 28, 2010 4:39 pm

Google "expandingfoamkits.co.uk" for some more information

6 posts   •   Page 1 of 1
It is currently Thu Dec 26, 2024 9:06 pm