What is the R value of 100mm Celotex?
4.50m2K/
Thickness: 100mm. rValue: 4.50m2K/W. Weight: 3.27kg/m2. Thermal conductivity: 0.022 W/mk – BS EN 12667.
Is Celotex better than polystyrene?
polystyrene is cheaper than celotex. R value or 50mm polystyrene is 1.25. R value of 50mm Celotex is 2.25. It has to be noted that over 7-10 years Celotex will drop in R-value to match the polystyrene as polystyrene will not drop.
Is Celotex insulation waterproof?
Is Celotex Waterproof? Yes, Celotex insulation is designed to effectively fight excess moisture in the air. This is thanks to the closed cell structure of their products, which makes them hydrophobic; meaning they do not absorb water.
Can I insulate my loft with Celotex?
Using rigid insulation board as loft insulation Some people may prefer to use rigid insulation board to insulate the loft space – for example Celotex or Kingspan – the process is pretty similar to above, although you will need less depth to achieve the same insulation levels (than mineral wool).
Are Celotex and kingspan the same?
Celotex and Kingspan are the names of manufacturers that offer very similar insulation products. The individual products will of course vary, both in terms of how they can be used and the size of each. Kingspan is a bit younger, but still has name value after 50 years in the industry.
Does Celotex degrade?
It is chemically inert and can be safely handled on the jobsite without requiring specialised equipment. As stated, the performance of EPS will not degrade over time, providing a consistent thermal performance for decades.
Can Celotex be stored outside?
Celotex insulation boardsmust be protected from prolonged exposure to sunlight and stored dry, flat and raised above ground level (to avoid contact with ground moisture). Where possible, packs should be stored inside. If stored outside, they should be under cover, or protected with opaque polythene sheeting.
What is the thinnest loft insulation?
Phenolic is perhaps the thinnest insulation for a given u-value. To put this into perspective, a 40mm thick YBS SuperQuilt Insulation is equivalent to 70mm of PIR in a roof application.
Can I use rockwool for loft insulation?
Uninsulated buildings may lose up to a quarter of their heat through attic and roof spaces1. ROCKWOOL loft insulation is made from stone wool, providing a cost-effective, energy-efficient and non-combustible solution for maintaining consistent temperatures. …