Is Celotex GA4000 combustible?
It achieves a classification of E. In layman’s terms, this means it is combustible and will contribute to the overall fire load.
Does Celotex expand?
For a chipboard floor finish, a vapour control layer laid over the insulation should be turned up 100m at room perimeters and all joints lapped and sealed. The chipboard should be glued with appropriate adhesive and use temporary edges to provide a gap of around 10 to 12mm to allow expansion.
Is Celotex flammable?
Celotex PIR is tested to BS EN 13501-1. It achieves a classification of E. In layman’s terms, this means it is combustible and will contribute to the overall fire load.
What is acelotex ga4000?
Celotex GA4000 is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing. Available in thicknesses from 50mm to 100mm, it can be considered for roof, wall and floor applications.
What is the tensile strength of compressed wood?
The tensile strength of wood containing compres- sion failures may be as low as one-third the strength of matched clear wood. Even slight compression failures, visi- ble only under a microscope, may seriously reduce strength and cause brittle fracture.
Can I use Celotex ga4000 in my building?
Celotex GA4000 should not be used in the external walls of buildings over 18 metres in height (England and Wales) or 11 metres in height (Scotland). Recent changes to Building Regulations mean that only non-combustible insulation or insulation of limited combustibility can be used in buildings of that height.
What is the specific gravity of clear straight grain wood?
Functions relating mechanical properties to specific gravity of clear, straight-grained wood (metric) Specific gravity–strength relationship Green wood Wood at 12% moisture content PropertyaSoftwoods Hardwoods Softwoods Hardwoods Static bending MOR (kPa) 109,600 G1.01118,700 G1.16 170,700 G1.01 171,300 G1.13