Knauf Deals

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B&Q Knauf Loft Insulation Mix & Match Thickness £21 /  £14.50 each when you buy three or more.
213°
Found 3rd FebFound 3rd Feb
Back on - you need to buy 3 or more (any thickness - mix and match) but then the price of each one drops to £14.50. Good value especially on the 200mm.
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Blimey, I'm glad I got loads of the Knauf space blanket insulation (covered in mica foil) a few years ago for £5 a roll... those crazy days where energy supplies were subsidising every conceivable green energy saving device, CF lightbulbs for 10p each and such like.
This seems like a decent deal though.
luvsadealdealdeal18 m ago

probably not for a garden shed


Well yeah, thats why I made a general comment, instead of replying to you...
Edited by: "urmum" 4th Feb
urmum1 m ago

Worth remembering..."Some energy providers are lowering the criteria for …Worth remembering..."Some energy providers are lowering the criteria for eligibility as they struggle to meet the targets. This means that most householders are now able to obtain free insulation measures."http://www.government-grants.co.uk/free-insulation


probably not for a garden shed
Worth remembering...
"Some energy providers are lowering the criteria for eligibility as they struggle to meet the targets. This means that most householders are now able to obtain free insulation measures."
government-grants.co.uk/fre…ion
splatsplatsplat4 m ago

Would this be ok to use in a shed?


sure

do you mean behind (say) plywood on battens etc, walls & ceiling? would work well

NB also available in the great Homebase sell-off, about £11/ roll
Knauf Earthwool Loft Roll 44 Combi Cut 170mm - 4.90m²/Roll £11.94 @ Travis perkins
284°Expired
Found 29th Oct 2017Found 29th Oct 2017
Knauf Earthwool Loft Roll 44 Combi Cut 170mm - 4.90m²/Roll Also Knauf Earthwool Loft Roll 44 Combi Cut 100mm - 8.30m²/Roll priced at £11.94 Delivery is FREE on all orders from … Read more
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Thank you. Ordered just in time.
veedubjai14 h, 37 m ago

Are you not suppose to leave an air gap between the top of insulation & …Are you not suppose to leave an air gap between the top of insulation & bottom of the loft board when installing loft legs? That pic on Toolstation looks like it packed to the hilt with insulation with no breathing space for air to circulate.



veedubjai14 h, 37 m ago

Are you not suppose to leave an air gap between the top of insulation & …Are you not suppose to leave an air gap between the top of insulation & bottom of the loft board when installing loft legs? That pic on Toolstation looks like it packed to the hilt with insulation with no breathing space for air to circulate.



Yes, you should leave a gap. But it all depends on how much insulation you are using and how much headroom you want above the boards.

A quick google located this comment: "The point of the gap is to remove moist air. How much you have depends on how humid your house is and how well sealed your ceiling is, so not all houses will suffer this, but water vapour moves through the plasterboard ceiling, even if there are no gaps, and will cool as it passes through the insulation. So there's a risk that it will condense on the underside of the boards, causing damp and mould, which is why the BBA and BRE insists on the air gap. It's particularly bad in the winter, when the loft is cold. I've seen plenty of cases of boards getting so sodden that both them and the insulation have to be thrown away, and where fungus/water stains the ceiling and leaks down into the room below. "
veedubjai12 h, 2 m ago

Are you not suppose to leave an air gap between the top of insulation & …Are you not suppose to leave an air gap between the top of insulation & bottom of the loft board when installing loft legs? That pic on Toolstation looks like it packed to the hilt with insulation with no breathing space for air to circulate.


You're not thinking of water tanks in the loft are you? you're not supposed to lag under those I think. I can't see why there's a problem covering the top of the insulation with boards but I could be wrong.
dashforth10 h, 13 m ago

I have used Loft Flooring Legs in my loft to raise the floor by 175mm FROM …I have used Loft Flooring Legs in my loft to raise the floor by 175mm FROM TOOLSTATION. A low cost lightweight option.


Are you not suppose to leave an air gap between the top of insulation & bottom of the loft board when installing loft legs? That pic on Toolstation looks like it packed to the hilt with insulation with no breathing space for air to circulate.
tek-monkey9 h, 30 m ago

I need to top mine up, has about 100mm up there at most. That said though …I need to top mine up, has about 100mm up there at most. That said though I'd want to board it out, whats the best/cheapest way to raise the floor to allow new insulation but also boards? Had a new loft hatch fitted and was warned that if I wanted to store up there I'd need cross beams to spread the weight, can I just put 47x100 timber up there with this in between?


I have used Loft Flooring Legs in my loft to raise the floor by 175mm FROM TOOLSTATION. A low cost lightweight option.
B&Q Knauf Loft Insulation Mix & Match £14.50 when you buy three
230°Expired
Found 17th Sep 2017Found 17th Sep 2017
Another one from the 'grapevine'. Knauf Eko roll loft insulation at £14.50 if you buy 3 but the price applies across all 3 sizes so you can mix and match. Looks like it's working o… Read more
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1616french17th Sep

Anybody in the know have any sort of idea how many rolls i'd need to …Anybody in the know have any sort of idea how many rolls i'd need to insulate a standard garage roof as thinking about making my garage into a room.



No such thing as a standard garage so you'd need the width x the length to get the area, then for building regs you'd need minimum depth of 270mm. If it's a cold roof you'll need to leave 50mm for ventilation. Your joists will not be that big so you'll need to use PIR or fill them with rockwool and then use insulated plaster board.
Edited by: "TomF" 19th Sep 2017
It's 14.99 at Wickes for the 100mm, minimum is one roll. Not cheaper but if you go on Mondays it's 12.75 any other day 13.39 with discount.
But for the bigger thicnkesses this is a good price.
Edited by: "TomF" 18th Sep 2017
andrew_marsh13 h, 50 m ago

You would really need insulation board to meet the u-value to satisfy …You would really need insulation board to meet the u-value to satisfy building regulations.



andrew_marsh13 h, 50 m ago

You would really need insulation board to meet the u-value to satisfy …You would really need insulation board to meet the u-value to satisfy building regulations.



Be careful if external garage might have a problem with damp , see... locostbuilders.co.uk/vie…755
Has this item a further discount using the trade card?
notos6 h, 38 m ago

Do you mean for installing under the floor above a void? If so, you'd need …Do you mean for installing under the floor above a void? If so, you'd need some kind of fabric to staple between the joists and allow this stuff to rest inside. I looked at doing this but in the end went for solid insulation boards that I cut to fit between the joists.


Yes, the idea is to fit this in beween the joists from the crawling space and hold tbem with netting.
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B & Q KNAUF EKOROLL LOFT INSULATION HALF PRICE NOW £9 (free C&C)
429°Expired
Found 3rd Nov 2016Found 3rd Nov 2016
One from the 'grapevine' - half price loft insulation from Friday 4th Nov. Will be on for a couple of days, maybe more. Should be online and in store.
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arthurx1234

Check with your local council you may be able to get a grant for 75% of … Check with your local council you may be able to get a grant for 75% of the cost ( i used to sell loft insulation and other energy products years ago) buy some paper overalls as this stuff itches like the clappersArthur


i just tried with my energy supplier and it says not eligibla as dont earn under £16k
FoxForce5

​Unless you have a newer house (in which case you shouldn't need more i … ​Unless you have a newer house (in which case you shouldn't need more insulation anyway) do not do that with standard insulation. Causes damp problems. You need to use a specific floor insulation (kingspan is the one I remember but there's a couple), designed for underfloor use, they insulate but don't get anywhere near as bad an issue with damp.By using inappropriate damp-proofing on main joists you can actually break building regs & invalidate insurance. I only know this cos my father in law suggested doing it in our victorian house so did some research & found a few horror stories & as such the correct way of doing it. Unfortunately the correct way is more expensive, but as opposed to potentially causing rot of your floor support joists, not so much in the long term!



​break building regs, that made me laugh, even a Victorian house should not be using kingspan or celotex between the floor joists, you should use natural materials, like hemp or lambswool.
jynxy2

any use for basement between the floor joists?



​Unless you have a newer house (in which case you shouldn't need more insulation anyway) do not do that with standard insulation.

Causes damp problems. You need to use a specific floor insulation (kingspan is the one I remember but there's a couple), designed for underfloor use, they insulate but don't get anywhere near as bad an issue with damp.

By using inappropriate damp-proofing on main joists you can actually break building regs & invalidate insurance.

I only know this cos my father in law suggested doing it in our victorian house so did some research & found a few horror stories & as such the correct way of doing it.

Unfortunately the correct way is more expensive, but as opposed to potentially causing rot of your floor support joists, not so much in the long term!
Edited by: "FoxForce5" 7th Nov 2016
t8m

can anyone tell me what the recommended depth for loft insulation is? I … can anyone tell me what the recommended depth for loft insulation is? I have just bought an old house and the surveyor mentioned it only has between 50 - 100 mm.


Unless you love the external walls look , see about insulating the external walls.Insulating the loft is the cheapest way to go but seen some lovely insulated and rendered walls lately ... energysavingtrust.org.uk/hom…all
Iamthebargainhunter008

This is slightly cold if this is the 100mm depth version, which I … This is slightly cold if this is the 100mm depth version, which I suspect for the price it is. I've been looking at more loft insulation and would go for the 200mm as I'm sure if you buy five or more with B&q it's costs about £16 per roll.



the 200mm version is £20 a roll if you bought 5 or more, works out at £3.63 a Sq metre,
the 100mm version at £9 a roll works out at £1.08 a Sq metre.

so if you double up the 100mm roll to make it 200mm it only works out at £2.16 a Sq metre.

so not sure on those figures where you got slightly cold from.
Knauf 100mm Loft Insulation £15.99 for 11.08m2 @ Wickes
31°Expired
Found 10th Jan 2014Found 10th Jan 2014
Was just commenting on another deal about EkoRoll insulation at B&Q (and looking for the Wickes "own" brand stuff that works out slightly cheaper) and came across this. I haven… Read more
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Would this not be cheaper from a builders yard?
Good price. It's great to work with. No real mess either.
Original Poster
leelee6781

*Knauf

Thanks. Title updated
Banned
*Knauf
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