Unfortunately, this deal is no longer available
B & Q 3 Rolls of insulation for £16.50 each
234° Expired

B & Q 3 Rolls of insulation for £16.50 each

£16.50£2534%B&Q Deals
16
Posted 2nd Jan

This deal is expired. Here are some options that might interest you:

B and Q have their winter deal on insulation on again. Buy 3 get each for 16.50. This just saved me £150 on my bulk purchase.

The biggest saving is the 200mm rolls usually priced at £25.00 a roll, which I (conveniently!) need for my new home, whose previous owner seemed to think dust bunnies would insulate the loft sufficiently.

Also note the TCB 3% cashback rate which is obviously stackable.
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From an earlier Homebase post, but the point applies equally here:

Great time of year to get this down as well. Government recommends at least 270mm of insulation like these rolls in your loft floor to avoid excessive heat lost from your home and to save big on your energy bills.

Don't crush the insulation in any way or you severely reduce its effectiveness and make it a waste of money.

We couldn't get more than 100mm down without raising the loft floorboards, but we had none before, so putting 100mm of this in still made a difference to our energy bills.

However, you can buy solid slabs of 100mm Rockwool RWA45 or RW3 insulation online that are not much more expensive, yet are as easy to work with as a roll and would give much better insulation performance than a roll like this. In hindsight I wish I had put some RWA45 or RW3 slabs in now in-between my ceiling joists.

You can buy decent Rockwool slabs from Wickes, but the very best stuff (RW3, RWA45) is only sold online.

What makes RW3 better? Thermal conductivity.

Thermal conductivity is just a measure of how much heat the insulation allows to pass through it. The lower it is, the less heat passes through. You want to retain as much heat as possible in your home.

Wickes sell Rockwool sound insulation slabs with a thermal conductivity of 0.038 W/mK:

wickes.co.uk/Rockwool-Sound-Insulation-Slab---100mm-x-400mm-x-1-2m/p/148842

Rockwool RW3 (sometimes called Prorox SL 930) is 0.034W/mK:

insulation4less.co.uk/rw3-100mm

In comparison, this Knauf Eko Roll has an R value of 4.5 = thermal conductivity of 0.044 W/mK (meaning it loses about 30% more heat than Rockwool RW3 does):

knaufinsulation.co.uk/products/glass-mineral-wool/earthwool-loft-roll-44

These figures mean you need about 250mm thick Knauf Eko Roll to get the same benefits as 220mm thick Rockwool slabs from Wickes or 200mm thick Rockwool RW3 slabs.

If you have little loft insulation at the moment, the Knauf rolls will make a massive improvement and you will pay back the insulation cost very quickly in lower energy usage.

However, if you can't fit 270mm thick insulation in your loft, buy the better Rockwool slabs.

These Rockwool slabs are also fantastic for sound insulation.
Edited by: "arCuThEDOWDr" 3rd Jan
Good price - bought 21 rolls do to my loft which only had 100mm. Sadly long gone at the £3.00 per roll deals from yesteryear which were subsidised by by the energy companies.
16 Comments
Nobody forces you to pay their stupid (most time ) prices like £25 per rool,when other sellers can offer you 18-21 price for roll.. find more expensive seller and tell us you saved £300..:) .
mikeey8402/01/2020 23:34

Comment deleted



i really dont want to be helpful for peoples who don't know how use google internet search and got big bags of cash which need to be spent somewhere, preferred overpaying

+1..voted hot.. yes its cheap
Edited by: "リチャード-グドコフ" 2nd Jan
deleted97683502/01/2020 23:29

Nobody forces you to pay their stupid (most time ) prices like £25 per …Nobody forces you to pay their stupid (most time ) prices like £25 per rool,when other sellers can offer you 18-21 price for roll.. find more expensive seller and tell us you saved £300..:) .


I do agree in fairness. It didn't seem appropriate to say but I did the shopping around including builder's merchants. If not trade then I struggled to beat. If trade I doubt someone would be looking at my rubbish here.

To answer the question though, the usual field wants to know the usual price of the item; not the alternative (which I still found to work for me).
Edited by: "kefirakeir" 2nd Jan
kefirakeir02/01/2020 23:42

I do agree in fairness. It didn't seem appropriate to say but I did the …I do agree in fairness. It didn't seem appropriate to say but I did the shopping around including builder's merchants. If not trade then I struggled to beat. If trade I doubt someone would be looking at my rubbish here. To answer the question though, the usual field wants to know the usual price of the item; not the alternative (which I still found to work for me).



always shop around,use topcashbacks,quidco, use everything ,some sellers thinks they can be smarter than us..
mikeey8402/01/2020 23:45

Comment deleted


Overinflates due to the original price, yes. If you're suggesting I'm inventing the saving I made can we take to PM rather than dispute it here?
kefirakeir02/01/2020 23:51

Overinflates due to the original price, yes. If you're suggesting I'm …Overinflates due to the original price, yes. If you're suggesting I'm inventing the saving I made can we take to PM rather than dispute it here?


I've no beef with you. Its a hot deal, and I'm probably going to buy some. My issue was with the unwarranted criticism of your post, but clearly that's got lost
It's been this price for months.
mikeey8402/01/2020 23:53

I've no beef with you. Its a hot deal, and I'm probably going to buy some. …I've no beef with you. Its a hot deal, and I'm probably going to buy some. My issue was with the unwarranted criticism of your post, but clearly that's got lost


Apologies then; I wasn't sure and didn't want to derail threads here with further disagreement.
Homebase deal is better 4 rolls for the price of 3 works out at £12.75 a roll
fergysteven103/01/2020 06:41

Homebase deal is better 4 rolls for the price of 3 works out at £12.75 a …Homebase deal is better 4 rolls for the price of 3 works out at £12.75 a roll


Different size rolls.

Homebase are 3.88sqm rolls at £3.29/sqm,
B&Q are 5.5sqm rolls at £3.00/sqm.
Just what I was looking for...thanks
I bought from wicks as b&q hasn't had home delivery on this for months although now added again, these are big n bulky, I needed 12 rolls would have taken me about 6 trips in my car.

The different thickness roles are different lengths so make sure you measure properly
Edited by: "matengawhat" 3rd Jan
I did a comparison of the cost per m2 of the 3 main DIY sheds over on this homebase thread ....

hotukdeals.com/com…854

Hope it helps.
From an earlier Homebase post, but the point applies equally here:

Great time of year to get this down as well. Government recommends at least 270mm of insulation like these rolls in your loft floor to avoid excessive heat lost from your home and to save big on your energy bills.

Don't crush the insulation in any way or you severely reduce its effectiveness and make it a waste of money.

We couldn't get more than 100mm down without raising the loft floorboards, but we had none before, so putting 100mm of this in still made a difference to our energy bills.

However, you can buy solid slabs of 100mm Rockwool RWA45 or RW3 insulation online that are not much more expensive, yet are as easy to work with as a roll and would give much better insulation performance than a roll like this. In hindsight I wish I had put some RWA45 or RW3 slabs in now in-between my ceiling joists.

You can buy decent Rockwool slabs from Wickes, but the very best stuff (RW3, RWA45) is only sold online.

What makes RW3 better? Thermal conductivity.

Thermal conductivity is just a measure of how much heat the insulation allows to pass through it. The lower it is, the less heat passes through. You want to retain as much heat as possible in your home.

Wickes sell Rockwool sound insulation slabs with a thermal conductivity of 0.038 W/mK:

wickes.co.uk/Rockwool-Sound-Insulation-Slab---100mm-x-400mm-x-1-2m/p/148842

Rockwool RW3 (sometimes called Prorox SL 930) is 0.034W/mK:

insulation4less.co.uk/rw3-100mm

In comparison, this Knauf Eko Roll has an R value of 4.5 = thermal conductivity of 0.044 W/mK (meaning it loses about 30% more heat than Rockwool RW3 does):

knaufinsulation.co.uk/products/glass-mineral-wool/earthwool-loft-roll-44

These figures mean you need about 250mm thick Knauf Eko Roll to get the same benefits as 220mm thick Rockwool slabs from Wickes or 200mm thick Rockwool RW3 slabs.

If you have little loft insulation at the moment, the Knauf rolls will make a massive improvement and you will pay back the insulation cost very quickly in lower energy usage.

However, if you can't fit 270mm thick insulation in your loft, buy the better Rockwool slabs.

These Rockwool slabs are also fantastic for sound insulation.
Edited by: "arCuThEDOWDr" 3rd Jan
Good price - bought 21 rolls do to my loft which only had 100mm. Sadly long gone at the £3.00 per roll deals from yesteryear which were subsidised by by the energy companies.
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