How Much Roof Insulation Have you Got?

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How Much Roof Insulation Have you Got?
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Downsizer Forum Index -> Energy Efficiency and Construction/Major Projects

How much roof insulation have you got?

1 inch or less

[ 2 ]

2-3 inches

15%

[ 4 ]

4-5 inches

19%

[ 5 ]

6-7 inches

15%

[ 4 ]

8 + inches

30%

[ 8 ]

I've not got a roof / normal roof!

11%

[ 3 ]

Total Votes : 26

Author

Message

ele

Joined: 05 Sep 2005
Posts: 814
Location: Derby

Posted: Wed Nov 02, 05 11:29 am Post subject: How Much Roof Insulation Have you Got?
I think I've measured ours as 3 inches of normal mineral wool type of insulation (1990 conventional house with the original regulation amount at that time, does that sound about right?) I got something pushed through the letterbox about non-means tested grants for insulation in my area and I was wondering about upgrading it and what to...

sean
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 42219
Location: North Devon

Posted: Wed Nov 02, 05 11:33 am Post subject:
Dunno. Our bedroom is the attic so unless I rip the plasterboard off I can't find out. The room stays warm and frost stays on the outside of the roof for a fair length of time though, so probably quite a lot.

Jonnyboy

Joined: 29 Oct 2004
Posts: 23956
Location: under some rain.

Posted: Wed Nov 02, 05 11:37 am Post subject:
Dunno, it's as deep as the joists though, so I would recon around 8 inches for a new build. Building control are hot on it, as the guy was up there for a while poking around.

judith

Joined: 16 Dec 2004
Posts: 22789
Location: Montgomeryshire

Posted: Wed Nov 02, 05 11:39 am Post subject:

As at Sean's house, our attics have been converted into rooms, so we only have about 3 inches between the plasterboard and the roof. It does a reasonable job, but more would be nice.

The grants are very good value-for-money if your house is suitable. We had our extension cavity wall filled for �200, which I thought was a bargain. The rest of the house is solid stone, so we can't do anything about that - just put on another jumper when it gets cold

Alchemist

Joined: 02 Mar 2005
Posts: 123
Location: Aberdeenshire

Posted: Wed Nov 02, 05 11:42 am Post subject:
We've got four inches of glass wool, but it's backed with that bubble-wrap/foil stuff which is supposed to give us the equivalent of another few inches. Was a bit skeptical originally, but it actually seems pretty effective .

crackapple

Joined: 19 Jun 2005
Posts: 204
Location: teeside

Posted: Wed Nov 02, 05 11:47 am Post subject:
at my last house i had about 200mm (8") thats because i work for a company that makes polystyrene insulation boards. too warm in the summer but toasty in the winter. this house though only has about 4 inches of fibre that the builders put in.

ele

Joined: 05 Sep 2005
Posts: 814
Location: Derby

Posted: Wed Nov 02, 05 11:52 am Post subject:

Jonnyboy wrote:

Dunno, it's as deep as the joists though, so I would recon around 8 inches for a new build.

Building control are hot on it, as the guy was up there for a while poking around.

According to the leaflet I've got the current minimum building regulation amount is 10 inches! not sure if that applies to where you are.

If anyone has got 4 inches or less and are also looking into grants the website appears to be www.heatproject.co.uk

Jonnyboy

Joined: 29 Oct 2004
Posts: 23956
Location: under some rain.

Posted: Wed Nov 02, 05 12:03 pm Post subject:
What's two inches amongst friends?

hils

Joined: 08 Mar 2005
Posts: 568
Location: Nottingham

Posted: Wed Nov 02, 05 8:57 pm Post subject:
not alot!

Rob R

Joined: 28 Oct 2004
Posts: 31902
Location: York

Posted: Wed Nov 02, 05 10:34 pm Post subject:
Same here- there's hardly 2" of roof, let alone insulation

dpack

Joined: 02 Jul 2005
Posts: 46249
Location: yes

Posted: Tue Nov 15, 05 12:32 am Post subject:
im not sure til the asbestos men finish . im not kidding

Nanny

Joined: 17 Feb 2005
Posts: 4520
Location: carms in wales

Posted: Tue Nov 15, 05 7:54 am Post subject:
do boxes of books count? if so we have about 3 ft because the entire loft is stacked to the edges with boxes of books we probably have the most heat efficient loft in the world if that 's accepted underneath that i have no idea.i don't go in the loft which is where the monster spiders live

Will

Joined: 30 Jun 2005
Posts: 571
Location: Grenoside, Sheffield

Posted: Wed Nov 16, 05 9:13 am Post subject:
V. similar to Judith - though I think there may not be very much in the sloping sections. The horizontal sections have about 6 inches.

mochyn

Joined: 21 Dec 2004
Posts: 24585
Location: mid-Wales

Posted: Wed Nov 16, 05 9:56 am Post subject:
None: our upstairs rooms are in the roof, and have no ceiling as such. I'm planning to put up ship lap with that sheepy insulating material between it and the roof. One day...

dpack

Joined: 02 Jul 2005
Posts: 46249
Location: yes

Posted: Tue Nov 22, 05 6:37 pm Post subject:
not enough

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