
Knauf Eko Roll Loft insulation roll, (L)4.83m (W)1.14m (T)200mm
- Eko Roll is a glass mineral wool roll, designed for use in cold lofts at ceiling level. This roll measures (L) 4.83mm (W) 1.14m (T) 200mm.
- CE marked
- Green star claim – Installing insulation can help reduce heat being lost through the property’s structure. This can help reduce your home’s energy consumption. *
- Features and benefits
- Significantly improves the thermal and energy efficiency in your home, helping keep your home warm in the winter & cool in the summer
- Eko Roll is a combi-cut product meaning it’s partially perforated, providing the flexibility to be used between joists or used uncut as a full-width roll, maximising on-site efficiency
- Odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria
- Made with up to 80% recycled glass
- Supplied in polythene packs which are designed for short term protection only
- For longer term protection on site, the product should be stored either indoors, or under cover and off the ground. EkoRoll should not be left permanently exposed to the elements
- Non-combustible Euro class A1 Reaction to Fire classification
- Eurofins Gold Indoor Air Comfort Certified Product
- Compression packed and lightweight for easier handling and moving around a site
£27.00

Knauf Eko Roll Loft insulation roll, (L)5.68m (W)1.14m (T)170mm
- Eko Roll is a glass mineral wool roll, designed for use in cold lofts at ceiling level. This roll measures (L) 5.68m (W) 1.14m (T) 170mm.
- Is one of 3 pack sizes available from Eko Roll, this roll measures (L)5.68m (W)1400mm (T)170mm and provides excellent thermal performance
- Green star claim – Installing insulation can help reduce heat being lost through the property’s structure. This can help reduce your home’s energy consumption. *
- Features and benefits
- Significantly improves the thermal and energy efficiency in your home, helping keep your home warm in the winter & cool in the summer
- Eko Roll is a combi-cut product meaning it’s partially perforated, providing the flexibility to be used between joists or used uncut as a full-width roll, maximising on-site efficiency
- Odourless, rot proof, non-hygroscopic, does not sustain vermin and will not encourage the growth of fungi, mould or bacteria
- Made with up to 80% recycled glass
- Supplied in polythene packs which are designed for short term protection only
- For longer term protection on site, the product should be stored either indoors, or under cover and off the ground. EkoRoll should not be left permanently exposed to the elements
- Non-combustible Euro class A1 Reaction to Fire classification
- Eurofins Gold Indoor Air Comfort Certified Product
- Compression packed and lightweight for easier handling and moving around a site
£25.00

Diall Insulation roll, (L)6m (W)0.37m (T)100mm
- An eco-friendly alternative to traditional glass wool insulation, this recycled plastic insulation from Diall is comfortable to work with and is completely itch free. It is extremely easy to lay and comes in handy sized rolls to fit many existing rafter spaces.
- Green star claim – Installing insulation can help reduce heat being lost through the property’s structure. This can help reduce your home’s energy consumption. *
- Features and benefits
- Easy to tear allowing it to be inserted into a variety of cavity spaces
- Each roll is made from approx. 85 recycled plastic bottles
- Requires no protective equipment to work with
- Breathable
- Non-itch
£22.00

Recticel Instafit Polyurethane 50mm Insulation board (L)2.4m (W)1.2m
- Introducing the Instafit thermal PIR insulation board with a low emissivity multilayer coated aluminium facing, perfect for insulating walls, lofts, floors and pitched roofs. This insulation board is designed to provide excellent thermal performance and energy efficiency, while also being easy to install.
- Zero ozone depletion potential
- Features and benefits
- Lightweight
- Easy to cut and handle
- Low lambda 0,022
- Easy to install
- Will not degrade or deteriorate if exposed to moisture
£40.00

Black Loft storage stilt (H) 21cm x (W) 15cm, Pack of 12
- Loft storage stilts allow for storage platforms to be built above insulation, whilst preventing the insulation below them from being compressed and ensuring that the cavity remains at the recommended minimum depth of 270mm to maximise energy and cost savings.
- Prior to installation ensure your structure can support the additional loads stored on loft storage stilts. Loading limit of existing ceiling structure should be confirmed by a structural engineer. To avoid overheating always ensure that exposed electrical cables are not covered by insulation. Keep insulation clear of exposed light fittings. 1) Position loft legs at widths to suit the panels you will be using to board your loft and screw through the base plate into the joists to secure. 2) Lay out your insulation to the desired depth. 3) Lay your boarding panels on top of the platform and screw into position to secure.
- To allow storage platforms to be built above loft insulation, whilst preventing the insulation below them from being compressed and ensuring that the cavity remains at the recommended minimum depth of 270mm to maximise energy and cost savings.
- Features and benefits
- Suitable for use with loft panels (1200mm x 325mm) or floor grade boards (600mm x 2400mm)
- Specifically designed to create an insulated raised boarded area inside a loft.
- Quick, simple and hassle-free installation.
- Large head increases surface area, making the positioning of loft boards easier.
- Easy to place and fix using 4mm self-tapping screws (Sold separately)
£17.70
Looking to insulate your home? With a wide selection of insulation products and great value, B&Q is a top choice for DIY insulation projects. In this comprehensive guide, we’ll walk through everything you need to know about buying insulation from B&Q.
Insulation Types Sold at B&Q
B&Q offers a range of insulation materials suitable for lofts, walls, floors, and more:
- Mineral wool – Made from molten glass, stone, or slag, mineral wool comes in rolls or slabs. It’s fire-resistant and works well for loft and wall insulation. Good brands at B&Q include Isover and Rockwool.
- Sheep’s wool – A natural fibre insulation created from sheep’s wool. Eco-friendly and breathable. Often used for loft insulation.
- Foam boards – Rigid panels of polystyrene or polyisocyanurate foam. Provides excellent thermal insulation in walls, floors and roofs. Kingspan and Celotex make quality foam boards.
- Fibreglass – Budget insulation made from spun fibreglass. Available as rolls for lofts or in rigid boards for walls. Brands like Ecotherm are found at B&Q.
- Polyethylene foam – Flexible synthetic foam for insulating awkward gaps and spaces. Sold in foil-faced rolls or plain sheets.
Insulation Prices at B&Q
As a budget retailer, B&Q offers very reasonable insulation pricing:
- Loft roll insulation – From £10 per 8m2 roll
- Cavity wall insulation – Roughly £7 per m2
- Insulation boards – Start around £9 for a 1.2m x 0.6m sheet
- Acoustic insulation – Around £25 per 8m2 roll
Bulk orders of 10+ rolls can get discounts of 5-10%. B&Q also regularly has sales on insulation products.
Best Wall Insulation from B&Q
Kingspan Kooltherm K5 is an excellent insulated plasterboard for walls. With a thermal conductivity of just 0.020 W/mK, it excels at reducing heat loss. Alternatively, 100mm Isover insulation batts provide great performance at a budget price point.
Eco-Friendly Insulation at B&Q
For environmentally friendly insulation, look for the following at B&Q:
- Sheep’s wool – Sustainable and renewable. Brands like SecondNature are available.
- Wood fibre – Made from recycled wood. Available in rigid boards or semi-rigid batts.
- Hemp fibre – Breathable low-carbon insulation from fast-growing hemp. Sold in batts or rolls.
- Cellulose – Recycled paper insulation offering good value and performance. Often used in lofts.
Installing Loft Insulation from B&Q
Installing loft insulation from B&Q is an easy DIY job:
- Clear your loft of debris and stored items.
- Measure the depth between joists – 100mm is ideal for most loft spaces.
- Roll out loft insulation over the joists. Unroll with the facing upwards, and cut to fit around hatches or trusses.
- Top up insulation depth to 300mm for maximum heat retention. Leave eaves ventilated.
- For bonus soundproofing, add acoustic insulation like Isover between joists.
B&Q Insulation Discounts
B&Q offers the following money-saving deals on insulation:
- Special discounts on bulk insulation orders of 10+ rolls
- Seasonal sales with up to 25% off insulation ranges
- ‘2 for £22’ offers on multiple insulation products
- £5 off voucher codes which can be used on insulation
- Ongoing 10% discount for B&Q TradePoint cardholders
- Weekly ‘Insulation Essentials’ deals with rolled-back prices
Insulation Roll Thickness at B&Q
Common insulation roll sizes at B&Q include:
- Loft insulation – 100mm, 150mm or 170mm thick rolls
- Cavity wall insulation – 50mm or 100mm thickness
- Acoustic insulation – 50mm and 100mm rolls available
- Underfloor insulation – 100mm thickness is typical
The thicker the insulation, the higher its insulation value. But check joist depth before choosing loft insulation thickness.
Energy Bill Savings with B&Q Insulation
Fitting B&Q insulation could reduce heat loss by up to 60%, saving £100s a year on energy bills.
Cavity wall insulation saves up to £275 annually. Loft insulation cuts bills by £245. And new insulation could eliminate draughts and damp problems.
To maximise savings, always choose the thickest insulation suitable for each application.
Using B&Q Insulation for Soundproofing
Specialist acoustic insulation from B&Q helps reduce noise transmission through walls and floors.
For DIY soundproofing:
- Use 100mm Isover Acoustic Roll in stud walls
- Layer 12.5mm SoundBloc plasterboard over insulation
- Insulate between floor joists with flexible Acoustic Slab
Soundproofing insulation significantly reduces unwanted noise. But additional steps may be needed for rooms like music studios.
Comparing Loft and Wall Insulation at B&Q
While both improve insulation, key differences include:
- Location – Wall insulation fits in cavities. Loft insulation lays over floorboards.
- Installation – Wall insulation is pumped in. Loft insulation is rolled out.
- Performance – Loft insulation offers greater thermal resistance as heat rises.
- Options – Rigid boards or batts suit walls. Loft insulation typically comes in rolls.
- Cost – Loft insulation starts cheaper although professional wall fill is ideal.
Always match insulation to the correct location and installation method.
Calculating Insulation Needs from B&Q
To find how much insulation you need:
- Measure room dimensions
- Calculate total wall, ceiling or floor area
- Check recommended insulation thickness for that application
- Measure insulation roll sizes and estimate total rolls required
- Add 10% extra to cover off-cuts and wastage
Use an online insulation calculator to estimate materials needed for the whole house.
Insulating Garages and Sheds with B&Q
B&Q insulation helps upgrade outbuildings like garages and sheds:
- Use rigid foam boards on walls and roofs for thermal and moisture protection.
- Fibreglass insulation batts are cost-effective for interior wall insulation.
- Stop drafts with expanding foam fillers around doors, windows and gaps.
- Line floors with rigid insulation sheets before plywood flooring.
Proper insulation transforms cold, damp sheds and garages into usable spaces.
R-Values of B&Q Insulation
The R-value measures an insulation’s thermal resistance – the higher the better.
Typical B&Q insulation R-values:
- Mineral wool – R2.5 to R3.5 per 25mm
- Kingspan Kooltherm – R5 per 25mm
- Fibreglass – R2 to R3.5 per 25mm
- Sheep’s wool – Up to R2.6 per 25mm
- Foam boards – R3 to R5 per 25mm
Look for the highest possible R-value within your budget.
Fire-Resistant Insulation at B&Q
For fire safety, choose non-combustible insulation like:
- Rock and glass mineral wool – Melts at over 1000°C.
- Fibreglass – Won’t flare up or spread flames.
- Foam boards with fire-rated cores – Kingspan and Celotex boards offer up to 90 minutes fire protection.
Check labels for BS 476 fire testing standards. Avoid insulation containing flammable plastic facings.
Insulating Underfloor Heating Systems
Insulation improves underfloor hydronic heating efficiency. B&Q options include:
- Foam boards – Use under the subfloor for maximum heat retention upwards.
- Mineral wool – Provides flexible insulation around heating pipes.
- Loose fill insulation – Easy to install around pipework before concreting.
Insulate underneath and around pipes. Don’t place insulation above pipes as this traps heat below.
Removing Old Insulation Before Installing From B&Q
Before installing new insulation:
- Carefully remove any asbestos insulation – follow proper disposal procedures.
- Clear out old vermiculite, mineral wool or fibreglass using gloves, mask and eye protection.
- Vacuum and sweep surfaces thoroughly to remove dust and particles.
- Seal-up any gaps around joists or pipes ready for the new insulation.
Removing old insulation prevents future settling and gives the best results from new products.
Does B&Q Offer Insulation Installation?
While B&Q sells insulation DIY materials, they don’t offer professional installation.
For help fitting insulation, find a certified installer through:
- TrustATrader website – Gives customer reviews to pick the best local installer
- Checkatrade search tool – Find 100s of registered tradespeople in your postcode
- GDW Partnership – Experts in professional insulation installation
Using an experienced insulation installer guarantees correct fitting.
Most Popular Insulation Brands at B&Q
Top insulation brands stocked by B&Q include:
Loft Insulation
- Isover
- Rockwool
- Ecotherm
Cavity Wall Insulation
- Isover Spacesaver
- Rockwool Flexi
Insulation Boards
- Kingspan Kooltherm
- Celotex GA4000
- Isover Variolay
Stick to well-known brand names to ensure quality insulation with reliable performance.
Suitability of B&Q Insulation for DIY
B&Q insulation products are designed for convenient DIY installation:
- Packs feature simple-to-understand fitting instructions
- Loft and wall rolls come in easy-to-handle sizes
- Many boards are lightweight and can be cut with basic tools
- Options like expanding foam require no special skills
As long as you pick the right insulation for each location, DIY installation can save on installer costs.
Resources for Using B&Q Insulation
Take advantage of the following resources:
- Step-by-step guides on the B&Q website
- ‘How to’ videos on the official B&Q YouTube channel
- Advice forums like DIY Doctor for tips from other DIYers
- Manufacturer helplines for product-specific installation queries
- Ask in-store experts for pointers if you get stuck
With the right guidance, even novice DIYers can install their insulation from B&Q.
Final Thoughts
This covers everything you need to know about buying insulation for any project from B&Q. Follow this advice to pick the perfect insulation at the right price and install it like a pro. With quality, affordable insulation from B&Q, you’ll save energy and money while making your home warmer all year round.