We remain open and here to help. Customer and colleague safety remains our priority. Whether shopping in store or online, we urge you to follow the Government's social distancing guidelines and to shop responsibly only for what is necessary.
See more Insulation boards & cavity slabs
Recticel Instafit Polyurethane Insulation board (L)1.2m (W)0.45m (T)50mm of 1
Our bulk delivery service requires a minimum order value of £100 across any combination of bulk delivered products. You can change the quantity in the basket.
This Recticel Instafit insulation board is ideal for both new build and refurbishment projects.
- Zero ozone depletion potential
- Instafit thermal PIR cavity insulation board with a low emissivity multilayer coated aluminium facing
Features and benefits
- Easy to cut and handle
- Low lambda 0,022
- Easy to install
- Will not degrade or deteriorate if exposed to moisture
|Euroclass fire performance rating||F|
|Standard||EN13165:2012 +A2: 2016|
B&Q need to help customers with better online spec
ArthursSeat - 3 months ago
Most people use the R or U value, not the lambda. Why don't B&Q just make it easy for people?
As for this, you want a high R, so:
R = length (or thickness) / lambda
so R=0.025m / 0.022
So these Recticel insulation boards are actually fairly good, and exactly the same thermal conductivity of 0.022 W/mK for the Kingspan TP10 or Celotex. If you need a board immediately then fair enough pricing.
CatFinlayson - 5 months ago
Feels warm just touching it, the heats bounces back. Super easy to score, snap and wedge into rafters and screw onto walls of our cabin which we hope will make it less hot in summer & warmer in winter to be a home office/ school. Still not finished as waiting on rest of my order but happy so far. Do beware of the metallic paper covering it though, I was solo DIY-ing and sliced my fingers on it, its like a razor.
This is not for cavity walls
Hgt - 6 months ago
This is not for cavity walls, see the manufacturers website
Just the job!
RichVee - 1 year ago
An equal replacement for Celotex and a fraction of the price. Also better for the environment, what’s not to like? Cuts with a simple hand saw.