Knauf Space board - for boarding and insulating a loft £3.28 @ B&Q
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Knauf Space board - for boarding and insulating a loft £3.28 @ B&Q

£3.28B&Q Deals
7
Found 26th Oct 2009
Was looking to board a small area of my loft while installing insulation and came across this stuff, subsidised at B&Q.

Cost is £3.28 per board with current 10% off, normal cost is £17.36 at B&Q for 4?

Basically - you put 100mm of normal insulation between the joists, then 2 of these on the joists, one on top of the other, and it gives you the equivalent of 270mm insulation BUT you can store stuff on top of it. It can't be walked on unless you put loft chipboard on top, but for light objects or in conjunction with loft chipboard, it's probably an easier way then raising the joists above the level of the extra insulation.

Space Board enables you to fully insulate your loft and use a proportion of the area for storage. It is Extruded Polystyrene that has high compressive strength. Can be used over existing loft boards. With 100mm insulation under existing loft boards and 2 layers of Space Board on top, this area will now meet the required U-Value equivalent to 270mm of Glass Mineral Wool insulation. It can be covered with additional loft boards for areas of high traffic.

500mm x 1200mm x 50mm
* Lightweight yet high compressive strength
* Sized to get through loft hatches
* 100% recyclable
* Not designed to support a persons weight, unless covered or supported by a chipboard loft board
* Greatly improves the thermal efficiency of your home
* For DIY use only - This product is subsidised under the Carbon Emissions Reduction Target. It is not for use in new buildings.
* Further subsidies cannot be claimed by professional installers on this product. This product is limited to 100m2 per customer.

7 Comments

is the 10% off mentioned specific to this product, or another promotion?

thanks

anyone knows how this does for fire resistance?

kippy;6700328

anyone knows how this does for fire resistance?



space-insulation.com/dow…pdf

Fire retardant. I think all loft insulation has to be fire resistant/retardant.

Original Poster

Just realised - still an ok deal but I think the higher B&Q price of >£17 may be for a pack of 4 - so better to buy singly, but not the complete bargain I thought.

If you want loads rather than a few, focus do 8 for £25 -slightly cheaper, but buying in bulk and you may need a big car.

Just wanted to flag this product up for all those who are installing cheapo insulation and sobbing at the thought of losing all their storage space!

I looked at this but as the poster above is right - you need a big car, more likely a van for even a small loft. Think you're better off with the rolls of insulation and normal boards - this could be very hard work.

270mm of insulation sounds a hellava lot. It's nearly a foot. So adding chipboard on top to walk on means a significantly reduced headroom.
When I converted a garage to an office, I fitted 70mm of Celcon to the walls (90mm in the roof) to satisfy the Building Inspector. Maybe Celotex has a higher thermal efficiency but it's as warm as toast. (Celotex is about £16 for am 8x4 foot board but also see Kingspan).
So if you do use this, be sure not to put it under your cold storage tank or it's certain to freeze.

Original Poster

zygo;6701055

270mm of insulation sounds a hellava lot. It's nearly a foot. So adding … 270mm of insulation sounds a hellava lot. It's nearly a foot. So adding chipboard on top to walk on means a significantly reduced headroom.When I converted a garage to an office, I fitted 70mm of Celcon to the walls (90mm in the roof) to satisfy the Building Inspector. Maybe Celotex has a higher thermal efficiency but it's as warm as toast. (Celotex is about £16 for am 8x4 foot board but also see Kingspan). So if you do use this, be sure not to put it under your cold storage tank or it's certain to freeze.



Agreed - using normal insulation of 170mm leaves little headroom.

With this stuff you just use 100mm above the joists.

I've done mose of my loft conventionally, just using 6 of these to create a 1.5 x 1.2 m area for loft storage - for me it's the right compromise between cost, storage, and meeting insulation standards. Everyone has different needs but when I sell my house I quite like the idea of answering the frequent "is it boarded" question with "well it's fully insulated but I've set aside a specially insulated / boarded area for some storage". Only costs me £20 to do so ...
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