Flat Roof Insulation


- Versatile Celotex GA4000 insulation boards for floors, walls, and roofs.
- Low emissivity foil face enhances thermal performance.
- Environmentally friendly, durable, lightweight, and easy to install with class 1 fire rating.
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Regular price
- £17.15£20.58
- Sale price
- £17.15 £20.58
Was £0.00Sold out


- Regular price
- £28.99£34.79
- Sale price
- £28.99 £34.79
Was £0.00Sold out


- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Regular price
- £23.65£28.38
- Sale price
- £23.65 £28.38
Was £0.00Sold out


- Durable Celotex TB4000 Insulation Board
- Exceptional thermal conductivity (0.022W/mK)
- Cost-effective, strong, easy to install, and long-lasting
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Regular price
- £35.90£43.08
- Sale price
- £35.90 £43.08
Was £0.00Sold out


- Environmental-friendly PIR insulation board with foil facings
- High thermal conductivity (0.022W/mK) eliminates cold spots, reduces energy usage, and lowers bills
- Certified with A+ rating, BBA certificates, and meets Building Regulations; easy to install, strong, and long-lasting
- Regular price
- £35.90£43.08
- Sale price
- £35.90 £43.08
Was £0.00Sold out


- Eurothane® GP is a high performance, lightweight PIR insulation board, easy to cut, handle, and install for various applications like floors, pitched roofs, internal walls, ceilings, and lofts.
- It is highly favored by contractors and installers for its excellent thermal performance with a λ value of 0.022 W/mK.
- The product ensures a quick and easy installation process, making it an ideal insulation solution.
- Regular price
- £11.17£13.40
- Sale price
- £11.17 £13.40
Was £0.00Sold out


- Regular price
- £16.50£19.80
- Sale price
- £16.50 £19.80
Was £0.00Sold out


- Economical, lightweight, and durable PIR insulation board.
- Features low emissivity foil for enhanced thermal conductivity.
- Environmentally safe, fire and water-resistant with long-term performance.
- Regular price
- £24.09£28.91
- Sale price
- £24.09 £28.91
Was £0.00Sold out


- Easy to install in various applications.
- Thick PIR board with high thermal performance.
- Manufactured with low emission standards.
- Regular price
- £44.90£53.88
- Sale price
- £44.90 £53.88
Was £0.00Sold out


- Regular price
- £22.30£26.76
- Sale price
- £22.30 £26.76
Was £0.00Sold out


- Celotex GA4090: 90mm PIR insulation board
- Thermal conductivity: 0.022W/mK
- Eco-friendly, complies with regulations, trusted for 9 decades
- Regular price
- £29.65£35.58
- Sale price
- £29.65 £35.58
Was £0.00Sold out


- Cost-effective Celotex TB4030 PIR insulation board
- Lightweight, easy installation, high tensile strength
- Fire and water-resistant, eco-friendly, long-lasting insulation for walls, roofs, and floors
- Regular price
- £13.30£15.96
- Sale price
- £13.30 £15.96
Was £0.00Sold out


- Regular price
- £27.45£32.94
- Sale price
- £27.45 £32.94
Was £0.00Sold out

- Thermal conductivity: 0.033 W/mK
- Environmental: CFC, HCFC, HFC-free
- Certifications: UNE-EN 13164, EN ISO 9001
- Regular price
- £43.40£52.08
- Sale price
- £43.40 £52.08
Was £0.00Sold out


- Effortless insulation with Kingspan Thermapitch TP10.
- High density increases habitable space by up to 15%.
- Trusted foil-facing technology prevents moisture buildup.
- Regular price
- £106.95£128.34
- Sale price
- £106.95 £128.34
Was £0.00Sold out


- Regular price
- £76.50£91.80
- Sale price
- £76.50 £91.80
Was £0.00Sold out


- High-Performance Insulation: PIR composition, 0.022W/mK thermal conductivity.
- Environmentally Friendly: Zero ODP, low global warming impact.
- Versatile & Certified: Eliminates cold spots, meets Building Regulations, and offers energy savings.
- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out


- Cut-to-fit for rafters/joists
- High thermal performance
- Environmentally friendly
- Regular price
- £44.95£53.94
- Sale price
- £44.95 £53.94
Was £0.00Sold out


- Regular price
- £12.72£15.26
- Sale price
- £12.72 £15.26
Was £0.00Sold out

- The Superfoil SFBA MP is a high-quality, lightweight foil insulation roll with a coverage area of 37.5m², excellent tensile strength, and superior water resistance.
- Constructed from 2 Aluminium Metalized PET layers and 1 layer of air bubble, it offers robust insulation performance and durability.
- It has a Class E fire rating when installed behind plasterboard, ensuring safety along with high performance.
- Regular price
- £77.90£93.48
- Sale price
- £77.90 £93.48
Was £0.00Sold out


- High-performance rigid polyisocyanurate insulation.
- Compatible with PVC single-ply waterproofing.
- Resistant to water vapor, solvents, fungi, and rodents.
- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out

- Superfoil General Purpose Wrap is a lightweight, durable insulation material with dimensions of 7m x 1m x 3mm, made from 2 Aluminium Metalized PET Layers and 1 layer Air Bubble for optimal thermal performance.
- It boasts impressive tensile properties and resistance to tearing, excellent water vapour resistance and a resistance to water penetration rating of W1, ensuring durability and protection against moisture and water damage.
- The product offers a thermal resistance of 0.12 R Value for effective insulation and energy efficiency, and has a fire rating of Class E when installed behind plasterboard for added safety.
- Regular price
- £24.90£29.88
- Sale price
- £24.90 £29.88
Was £0.00Sold out


- Premium 130mm Celotex XR4130 insulation
- Polyisocyanurate (PIR) for eco-friendly high performance
- Cost-effective, BBA certified, A+ rating, meets Building Regulations
- Regular price
- £43.95£52.74
- Sale price
- £43.95 £52.74
Was £0.00Sold out

- The SuperFOIL SFUF is a durable, high-quality insulation product with excellent tensile properties, resistance to water and tearing, and a coverage area of 12m².
- It offers superior thermal performance with a thermal resistance of 0.8 R Value, a fire rating of Class E, and can withstand damp and humid conditions effectively.
- Despite its robust performance, it is easy to install, making it suitable for a wide range of demanding insulation applications.
- Regular price
- £96.45£115.74
- Sale price
- £96.45 £115.74
Was £0.00Sold out

- The Superfoil SF19 Plus is a high-quality, durable insulation product with superior thermal resistance, excellent tensile properties, and resistance to tearing.
- It offers effective resistance to water penetration and vapour, making it ideal for areas prone to moisture or dampness, and has a high thermal resistance with a 1.63 R value.
- The product also boasts a fire rating of Class E (behind plasterboard), adding an extra layer of safety to building projects.
- Regular price
- £101.15£121.38
- Sale price
- £101.15 £121.38
Was £0.00Sold out


- Cost-effective, high-performance insulation board
- Thermal conductivity of 0.022W/mK, suitable for various applications
- Environmentally friendly with zero ozone depletion potential
- Regular price
- £38.50£46.20
- Sale price
- £38.50 £46.20
Was £0.00Sold out


- 165mm Celotex XR4000 PIR insulation board
- Achieves A+ rating, low U-values, and BBA certifications
- Easy installation, cost-effective, long-lasting thermal performance
- Regular price
- £778.00£933.60
- Sale price
- £778.00 £933.60
Was £0.00Sold out

- The Superfoil SF40 65mm x 1.5m x 10m is a high-performance insulation product by Superfoil, composed of multiple layers of foil and loft quilt, offering superior thermal resistance and durability.
- Despite its large coverage area of 15m², it is lightweight at 15kg and has impressive tensile properties, water vapour resistance, and resistance to water penetration and tearing.
- It is rated Class E for fire resistance, making it a safe and reliable choice for various construction projects.
- Regular price
- £199.99£239.99
- Sale price
- £199.99 £239.99
Was £0.00Sold out

- The Superfoil SF19BB is a lightweight, high-quality insulation product made from reflective coated breather membrane and perforated aluminium coated reflective foil PET, offering superior thermal resistance and a coverage area of 15m².
- It measures 10m in length and 1.5m in width, with a thickness of 40mm, and includes four loft quilt layers for additional insulation and comfort, with impressive tensile properties for durability.
- It excels in performance with a water vapour resistance of 0.115 MNs/g, a thermal resistance of 1.45 R Value, resistance to water penetration of W1, high resistance to tearing, and a fire rating of Class E (Behind Plasterboard).
- Regular price
- £109.95£131.94
- Sale price
- £109.95 £131.94
Was £0.00Sold out

- Superfoil SF6 is a high-quality, lightweight insulation material with superior thermal resistance, excellent tensile properties, and resistance to water penetration.
- It is constructed from a unique combination of materials, including mesh reinforced foil laminated outer layers, aluminium coated reflective foil PET layer, thermo foam separation layer, and loft quilt layers.
- With a fire rating of Class E (behind plasterboard), it is a safe choice for insulation needs, providing a sleek and professional finish to projects.
- Regular price
- £75.25£90.30
- Sale price
- £75.25 £90.30
Was £0.00Sold out

- The Superfoil Pipe Wrap is a high-quality insulation product with superior thermal protection, made of two layers of aluminium metalized PET and one layer of air bubble, and has a sleek silver finish.
- It's lightweight, durable, and resistant to tearing and water, with impressive tensile properties and high resistance to water vapour and penetration, ensuring protection from moisture damage.
- With a thermal resistance of 0.12 R Value, it effectively reduces heat loss, preventing pipes from freezing in cold weather, and has a fire rating of Class E when placed behind plasterboard.
- Regular price
- £12.55£15.06
- Sale price
- £12.55 £15.06
Was £0.00Sold out


- Premium performance: Kingspan Kooltherm® K110 Soffit Board, fibre-free phenolic core.
- Certified quality: ISO compliance, BBA Certificate 16/5299 for assurance.
- Expert guidance: Kingspan Insulation Technical Service for aesthetics, easy installation.
- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out


- High-performance Celotex XR4200 insulation board
- Low global warming impact, zero ozone depletion
- Superb thermal conductivity, easy installation
- Regular price
- £935.40£1,122.48
- Sale price
- £935.40 £1,122.48
Was £0.00Sold out


- Flexible glass mineral wool rolls for timber frames
- Top-notch thermal and sound insulation
- Water-resistant, eco-friendly, and A1 fire rating
- Regular price
- £1,159.89£1,391.87
- Sale price
- £1,159.89 £1,391.87
Was £0.00Sold out


- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out

- The Superfoil Rad Wrap is a high-quality, lightweight insulation product made from aluminium metalized PET, providing excellent thermal resistance and durability.
- It has impressive tensile properties and high resistance to water vapour, water penetration, and tearing, ensuring robustness and long-term use.
- With a fire rating of Class E when installed behind plasterboard, it is a safe and effective solution for insulating your property.
- Regular price
- £22.92£27.50
- Sale price
- £22.92 £27.50
Was £0.00Sold out

- The Superfoil SF40BB is a lightweight, high-performance insulation product with a thickness of 75mm, composed of multiple layers for maximum thermal efficiency, and has a coverage area of 15m².
- It has excellent tensile properties for enhanced durability, and superior resistance properties including water vapour resistance, thermal resistance, and resistance to water penetration.
- The product has a fire rating of Class E when placed behind plasterboard, ensuring added safety in the event of a fire.
- Regular price
- £199.95£239.94
- Sale price
- £199.95 £239.94
Was £0.00Sold out

- The Superfoil SFBA BB is a lightweight, high-quality insulation product with dimensions of 4mm x 1.35m x 50m, offering a coverage area of 67.5m² and a weight of 7.1kg. It's made from 1 Aluminium Metalized PET Layer and 1 layer of Air Bubble.
- It boasts excellent thermal performance with a thermal resistance of 0.125 R Value, high water vapour resistance of 1200MNs/g, and a resistance to water penetration rated at W1, ensuring a comfortable and dry space.
- For safety, it holds a Class E fire rating when installed behind plasterboard, making it a reliable choice for construction or renovation projects.
- Regular price
- £149.52£179.42
- Sale price
- £149.52 £179.42
Was £0.00Sold out

- Thin multifoil insulation with built-in breather membrane
- CE marked for roof underlayment and rainscreen
- 10m x 1.5m x 35mm, thermal resistance: 1.35m²K/W
- Regular price
- £137.80£165.36
- Sale price
- £137.80 £165.36
Was £0.00Sold out

- 3-in-1: Vapour control, Radiant Barrier, Foil Insulation
- DIBT & CE Certified; Fire-resistant, Water-tight
- For Roof, Wall, Floor; High Thermal Resistance; Easy Install
- Regular price
- £224.95£269.94
- Sale price
- £224.95 £269.94
Was £0.00Sold out


- Regular price
- £1,159.89£1,391.87
- Sale price
- £1,159.89 £1,391.87
Was £0.00Sold out

- Regular price
- £49.89£59.87
- Sale price
- £49.89 £59.87
Was £0.00Sold out

- Regular price
- £79.85£95.82
- Sale price
- £79.85 £95.82
Was £0.00Sold out


- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out


- Regular price
- £0.00£0.00
- Sale price
- £0.00 £0.00
Was £0.00Sold out
Install Flat Roof Insulation And Live In A Comfortable Atmosphere For Life
Are you worried about damp in your home? Does it get unpleasantly cold during winter? If the answer is yes, then you are going to find this article very interesting as it is all about insulation, which can help maintain a comfortable environment around your home and office. Sometimes people fall ill because of an unhealthy environment at home when there is an imbalance of temperature and ventilation, but insulation really can be a problem–solver in this regard. Flat roof insulation is a popular kind of insulation that is installed above your ceiling to ensure that the cold air remains outside and warm air inside.
You will need to know the right kind of insulation to use that is required for your home, the materials specifically chosen and the measurement of the space that is needed to be installed. If you are thinking of getting rid of mold and condensation, then you must install the right materials from the offset.
Thermal roof insulation are entirely responsible for keeping your ceiling space warm without letting cold air penetrate within the living space of your home. Flat roof insulation has been popular since the 1950s throughout the UK, and it has been providing warmth and controlling temperatures within a building. Flat roof insulation will work best for you when you are living in an area or region that records extreme temperatures. Construction companies and engineers do the process of installing the insulation during the construction stages. However if you are retrofitting the insulation in an existing house, well then it becomes a little more of a difficult job. It may require for the removal of existing plasterboard to access the flat roof area from underneath or it may require for the removal of the flat roof sheeting on the outside of the building. No matter what way you go about it in an existing building it will be a messy and dusty job.
The Benefits
1. Live in comfort
After you have successfully installed the flat roof insulation, you will notice an immediate difference within the building. Almost instantly. Products such as TR27, TR26 from Kingspan or Isover Spacesaver, Knauf Earthwool, Celotex GA4000, Celotex XR4000, Celotex Crown-Up and Celotex Crown-Fix are just some of the products you can use to install on or within a flat roof.
2. Save money
Flat roof insulation promise you the permanency of protection against the cold and will save you on your heating bills as well.
3. Complete protection
Protection is 100 % assured from external elements, as there will be no infiltration of any sort if you go with an air tight option. You may also stay protected from sound pollution and will be able to enjoy a peaceful environment around your home.
4. Longevity
Flat roof insulation has a very long lifespan and will outperform the lifetime of the building in which it is installed in. Hence the importance of installing these products correctly. You can spend alot of money on insulation but if it is not installed correctly then it will not work.
5. Affordable prices
Flat roof insulation is available at affordable prices both in the online and offline market. You need to keep in mind how many m2 of insulation you require and the thickness of the materials to be used.
Flat Roof insulation is necessary for all houses because it provides you with the care and comfort, that you cannot find anywhere else. These are very efficient materials but can also be delicate so be careful when handling them. They are very easy to install, however it is better to call for a professional when you are planning to install these around your home as if it is not done correctly it might as well not be there.
Flat roof insulation is very popular, especially in colder regions like the UK and Ireland where it can become difficult to trap heat. This is a form of internal wall insulation with great thermal capacity unlike any other. If you are looking for thermal insulation, then Insulation4less will be the right choice as we have a wide range of thermal insulation with great prices. You can contact the sales team, and they will help you out regarding the appropriate quantity, type, and size that you need for your space.
Soundproofing
Mineralwool Flat roof insulation is very much capable of preventing sound and noise externally, the material that they are made of has from basalt rock and glass has brilliant capacity to sustain and withhold sound. This is one of the significant criteria if you are living in a busier neighborhood and hence you need these acoustic insulation products to maintain a peaceful environment around your house. Sound absorption is a major function of Flat roof insulation.
Fireproofing
Most of us show concern for a fireproof insulation when we plan to reside or live in a house. It is simply a paramount concern regarding safety. Well, if you are worried about fireproofing, then the solution to your problem is simple and easy to overcome, i.e. mineral wool flat roof insulation, coupled with plasterboard on the inside will help to ensure a safe home in the event of a fire.
Condensation
The key issue affects the very fabric of our house and it occurs because of the meeting of warm air with a colder surface. Most houses face the issue of condensation and damp due to high humidity and moisture levels in the environment of the house. Condensation can also occur from the household environment from cooking, showers, baths even people breathing. If you do not have adequate insulation and ventilation then condensation will become an issue very quickly.
Not enough depth for your flat roof insulation?
If you find yourself with a tight space in which you have to insulate then sometimes it is best to turn your attention to a number of factors.
Insulate above the flat roof section using Kingspan TR27 or Celotex Crown-Up of crown-Fix or similar.Use a high performance Phenolic insulation like Kingspan K110 or Kingspam TP10 maybe. Both of which will give great U-values.
Make the flat roof space as airtight as possible to avoid any unnecessary breeze from entering into the house from outside.
Use an insulated panel like Celotex PL4000 or Warmline insulated plasterboards. All of which will again improve the performance of your flat roof area.
Include some ventilation around your roof space to avoid the build up of condensation in an area in which you cannot see.
Obviously you will want to go a thick as possible with your insulation to maximise its performance so keep that in mind when selecting the correct insulation that suits your needs.
Another option for an extremely high performing insulation is to use Kingspan Optim-R range. This is an extremely expensive option, however by far and above the best. Achieve incredible U-values that cannot be achieved with such thin insulation. prices start at roughly £100m2 so keep this in mind when you think you may use it, as the price very quickly racks up.
Do you need to vent a flat roof?
It is definitely recommended that you ventilate a flat roof and in fact the regulations state that you should leave a 50mm gap between the insulation and the underside of the roof covering. This is the case for a warm roof space and a cold roof space. It is also recommended that you install a vapour control layer to control the movement of air around the roof space. The last thing you want is a gale force wind blowing through your house because you have ventilated your roof space and all that wind is making its way into the house.
The different types of vents that can be used can the brick vents if you can install them in a wall somewhere or tile vents which can be installed on the roof. Another alternative would be soffit vents and there are loads of options on the market to choose from.
How do you insulate a flat roof?
First off all you need to lay 12mm OSB or Plywood down on the ceiling joists. Its best to screw these down with brass of galvanised screws so they will not decay over time. Then install your vapour control layer to control the movement of air within the building and assist in reducing the buildup of condensation. Lay your rigid insulation material over your vapour barrier and ensure you have marked where your vapour barrier is being punctured and install a good Butyl tape in these locations before you fit your insulation. Lay a second layer of OSB or plywood over the insulation and fix the deck down with the appropriate fixings. Then install your final finish of a waterproof coating which can be torch on felt, fiberglass tanking or similar to completely make your flat roof watertight.