Insulating existing dormer

The inside walls of existing dormer room that face the roof void (1960s purpose built dormer bungalow) do not appear to be insulated other than some sort of fibre boarding fixed to the studs on the void side.

Would foil insulation fixed on top of this be beneficial or would it be better to remove existing boarding, fill space between studs with loft insulation and then refix, or simply remove and replace with foil insulation or some other insulation board perhaps between the studs (e.g Celotex)?

Would a vapour barrier need to be installed and how?

Thanks

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loft insulation

by karan dehalle
(lincolnshire)

Can you tell what is the best quality loft insulation?

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Loft Conversion Insulation Boards

Would 120mm of rigid insulation boards (celotex xr 3120) in between the rafters (45deg.pitch)plus 12.5mm of foil backed plaster board over the the rafters be acceptable under the present building regulations and does the plasterboard count as part of the insulation.

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Insulation

by Cynthia smallman
(Stafford)

What are the specifications for loft insulation?

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Retro Insulation

by Stuart Warburton
(Anglesey)

My house is a dormer style bungalow built in 1950. The loft space is well insulated but the sloping sides of the bedroom ceilings are not insulated at all.

I have noticed that on a hot day the centres of the ceilings are cool, due to the insulation above but the sloping sides are very warm. This presumably indicates that a lot of heat must be being lost during the winter months.

I wondered if there is any product such as a thin heat reflective surface that could be applied to the sloping surfaces to prevent or at least reduce this loss?

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vermiculate

by Tony Revell
(Essex)

I have a lot of old vermiculate in storage bags it will be some 25 years old .

It was used in a loft for insulation. It would be nice to use it .I am now installing a log burner

Would this be okay to use as the insulation in a chimney between the multifuel 316 s/steel liner and the brickwork of the stack.

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Loft conversion roof insulation

by Lee
(Brighton)

Hi

Can you please advise me how to insulate a flat roof on a loft conversion with hot roof (as opposed to a cold roof) as i want to put spots in the ceiling.

Thanks

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Raising The Loft Floor For Insulation

by Rod
(Bristol)

We have had 6 inches of insulation added to our loft and now I want to raise the floor using 6.2 timber my problem is do I:

1. follow on top of orignal joist

2.90 degrees ...or

3.8.2 connected side by side to orignals

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Improving insulation in a loft conversion when replacing the roof tiles

by Peter
(Beckenham)

We had a loft conversion carried out 7 years ago which is cold in winter(it has 4 flat windows, but no dormers).

We need to replace our roof tiles and want to improve the loft insulation whilst the ceilings and walls are exposed.

The loft is cold in winter despite:

- a radiator direct from the boiler which is in the loft
- 50mm foil lined rigid block insulation in the sloping ceilings
-12.5mm foil backed plasterboard in the flat ceiling and on the walls along with 100mm fibreglass infill in both.

What advice can you offer about improving the warmth in the loft conversion?

Would a roofer/roofing company normally be competent to carry out both tasks?

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insulating a floored loft

I have a loft space that is floored and partly carpeted but there is little or no insulation under that floor.

I can get a grant to insulate the loft.

Would I need to have the whole floor (sheet timbered) lifted or can the material be laid over the existing flooring in the loft?

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blocking radiant heat

by mark
(malta)

I have a ceiling where I have fiberboard in between the roof where there is a gap in between
if I staple aluminium foil on top of the fiberboard would it effectivly stop the heat passing through into the room?

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Loft Boarding/Insulating

by Colin
(Newcastle)

If boarding my loft for storage do i still need to insulate between the joists?

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loft insulation prior to conversion

Hi,

We have been offered reduced-price loft insulation with a grant to increase our insulation by about 90mm.

We currently have the loft boarded, but it's only used for minimal storage so removing the boards and losing this storage is not a problem.

However, we are considering a loft conversion in 2-3 years and it appears we would have to remove the additional insulation at this time unless we raised the joists first. What I want to know is, is it worth raising the joists first?

We are not DIY-skilled so would have to get a builder or handyman in to do it, so it would cost us extra. If we don't raise the joists now, I am guessing that we would have to lift the additional insulation layers before the loft could be converted.

Would we be able to make use of this insulation for the roof? Or would it be redundant? And would we need to raise the joists anyway?

Thanks Annette

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