loft roll insulation

Fibreglass Loft Roll Insulation

There are many ways to insulate your loft and using Fibreglass loft roll insulation is probably one of the quickest and cheapest ways of doing this. We supply Knauf Earthwool which is a lot less irritant than standard Fibreglass. This makes it easier and less dangerous to handle when installing. For installation Generally you would install one layer to the depth of the roof joists. You would then cross layer over the top with another layer to get to around 270 mm-300 mm thick overall.

Our loft insulation comes perforated so that it can be split for insertion in between 600 mm or 400 mm joist spacing’s. Alternatively it can remain as a whole roll to roll out across to form the top layer. Knauf Earthwool loft roll comes in 2 different grades ‘40’ and ‘44’ which basically stands for the thermal conductivity of the product, as in 0.044W/m K and 0.040W/m K

Advantages of Knauf Earthwool fibreglass loft roll insulation

  • Easy to handle and install as its lightweight and easy to cut.
  • roof insulation that is environmentally friendly as it has Zero ozone depletion and zero global warming potential.
  • totally odorless so will not make room smell
  • loft insulation of a material that is totally rot proof
  • fibreglass insulation that is a non hygroscopic material.
  • attic insulation that will not sustain vermin.
  • does not encourage the growth of mold and fungi or bacteria.
  • offers a resistance to passage of water vapor that is negligible.

For prices on any of these loft insulation materials please call our sales office.


SPECIFICATION: 100mm – 200mm

Special offer
Loft Roll combi-cut
Thick: 100mm
Only £28.90 + vat
Quote: LOF010

fibreglass loft roll insulation
Loft Roll combi-cut
Size: 9.18m2
Thick: 150mm
Only £28.90 + vat
Quote: LOF011

Special offer
Loft Roll combi-cut
Size: 6.84m2
Thick: 200mm
Only £28.90 + vat
Quote: LOF012

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As a small building company we find that BMD will equal or beat our trade depot plus we get free delivery too !!, Also we can get everything in one order and being able to talk to an actual person rather than clicking on a website means we get the service we want. saves time and money whats not to like ? :-)

Clemency Bedford, Bedford Building Maintenance

Fantastic Company. Helped with the order from start to finish. Even had an issue my end with the payment and they couldn’t be more helpful.

Mike Reynolds

Purchsed our floor and wall insulation from this company, they are very helpful and went through the options available to me. after searching about the total price was the best i had so i gave them the order. Deliervy was made in 2 days and everything was fine. I will use them again for the next part of my building project.

James Kergan, JK Building services

Excellent company, Jason gave us a really good price and the items were delivered 2 days later much quicker than anyone else could offer. even the delivery driver was incredibly helpful, honestly can’t fault them Jacqui

Jacqueline Jelley,

Thanks for my order great service

Yanislav Molkiva,

Excellent price and delivery what more can i say , keep it up BMD


Awesome guys sorted me out when i didnt have a clue what to order top geezers

Badders, Holy smoke Vape store

After days of trying to order some Rockwool from suppliers who never got back to me or quoted silly prices, my enquiry to BMD was answered in minutes politely and with clear knowledge of the products and delivery arranged on the phone all at a great price. Top marks for A1 service and product knowledge.

Rich Jenn

Ordered online as it was the weekend , recieved a call to arrange delivery day on the Monday morning . all goods arrived in great condition and on the day they said.

Sue Brenner, Holistic regen

Very happy with the service we received. Fantastic product at a fantastic price. Cant recommend Jason and the team highly enough. Ordered during Covid-19 when everything was slightly crazy and delayed and Jason called and said they had a lorry in our area so could deliver the very next day! Thank you guys for 5 star service, will be back in the future . All the best, Lacey. Travellers Finds Ltd

Lacey Griffiths, Travellers Finds Ltd

Ordered Celotex insulation from this company for the first time last week and I will definately be back again. Good price and delivery 2 days later thankyou.


Matt Chapman, MC Construction

Good for cheap insulation, i bought some celotex from them and it was delivered last week, it was a lot cheaper than anyone else in my area. i’m very happy with this service.

Rav Kumar

Dont normally leave reviews but they helped me with products through out my selfbuild and saved me a lot of money

Ady Moon, Moon Building

Thanks for saving my bacon with next day delivery will be back when I need some more Insulation.

Scott Ainsdale, SA Electrical

Good price, good product great service. Thank you

Julie Rhodes,

Great service, goods supplied on time , very satisfied

Alan Gibbs

Nice to deal with, quick delivery and cheap prices.

Simon Berrinfield

As described quick delivery and good condition thankyou

Nick Wilson

Top Service From quote to delivery can’t get any better thanks

C Lewis, C Lewis Building