-
75mm Celotex CW4075 Cavity Wall Insulation Board 1200mm x 450mm 4.32m2 Pack of 8 (4.32m2)
75mm Celotex CW4075 Cavity Wall Insulation Board is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
£61.80£74.16 Ex VATInc VAT£14.31£17.17 Per M2 Add to cart
Our specialist stores
Our specialist stores
75mm PIR CW4000
One of the most popular PIR insulation options among builders, contractors, and architects, the 75mm PIR insulation proves to be a reliable answer to general insulation requirements. This multipurpose insulation sheet finds diverse use in many residential and commercial properties.
What is 75mm PIR insulation?
The high-efficiency 75mm PIR board is derived from the plastic compound known as polyisocyanurate. This is a type of stiff foam with a low moisture absorption rate. The foam is processed as a 75mm laminate with aluminium foil at the front and rear.
What are 75mm PIR used for?
75mm polyisocyanurate insulation is best-suited for:
- Insulation of internal and external walls. As long as there is enough space, you can apply them to any interior wall insulation project. Additional use cases are cavity and timber- and metal-framed wall insulation.
- Roof insulation. They can go above or below the rafters, depending on the kind of roof. Or you can cut and fix them between rafters.
- Floor insulation. You can use your 75mm PIR sheets to insulate different floors. Manufacturers and architects typically recommend the types of floors this board is ideal for.
Types of 75mm PIR
We stock 75mm PIR insulation sheets of different sizes. Popular sizes in stock include:
- 2400mm by 1200mm
- 1200mm by 450mm
All our boards come with square edges. This makes installation simple since there are no awkward shapes to work around.
Benefits of 75mm PIR insulation
- Multi-use solution — 75mm PIR insulation is a versatile board size that is applied to a wide variety of insulation projects. From heat-proofing the attic to properly insulating the walls of your shed, you can fit 75mm PIR boards in many places.
- Excellent moisture control — You never have to worry about your insulation getting soaked with condensation. The surface of 75mm PIR sheets has low permeability, with the aluminium backing helping keep water transmission low.
- Ease of installation — These lightweight boards are easy to lift, which makes short work of the installation process.
Why choose our 75mm PIR?
- Quality products — All our 75mm PIR boards are made to exceptional quality standards. They are carefully wrapped to preserve their good form, ensuring they stay intact as they make their way to you.
- Carefully sourced — We source our PIR boards from appointed distributors and manufacturers whose quality we trust.
- Simple purchase process — We’ve simplified the selection and purchasing process on our website to provide you with a seamless experience.
- Quick delivery — Unless otherwise stated, we should deliver your PIR insulation boards within 5 days. Oftentimes, we do this in just a couple of days.
At Insulation Wholesale, you can purchase 75mm PIR at low wholesale prices with fast delivery for most of items within 2-5 days. Competitive rates guaranteed.
FAQ
How to install 75mm PIR insulation?
Typically, installation involves cleaning the surface and, if necessary, cutting the board to ensure it fits the space. Fix the board into the space and secure it with adhesive or fixings. Seal the joints with aluminium foil and a vapour barrier to keep the insulation airtight. You may need to apply an additional vapour barrier — building regulations require this in some areas.
How to cut 75mm PIR insulation?
First, measure the board to ensure it matches the area to be insulated. Next, cut through the marked line using a saw or utility knife. A fine-toothed saw with a sharp blade ensures a clean and precise cut.
How much 75mm PIR insulation do I need?
Different sizes of 75mm PIR boards offer varying coverage. Larger boards will cover a bigger surface than smaller ones. To find out how many boards of a specific size you need, measure the work area (to be insulated), then divide this by the coverage of one PIR board.
