Excellent thermal performance with a thermal conductivity of 0.022 W/m.K, reducing the thickness of insulation required to hit the target U-value.
Low emissivity foil facing provides improved thermal performance in sealed cavity air spaces, improving the achievable U-value.
Celotex boards are light and rigid assisting with ease of transportation, handling and fitting.
Celotex TB4000 has been assessed by the BBA as fit for use in defined roof, wall and floor applications if installed, used and maintained as set out in the certificate. Please read the certification at insulation-UK.com/BBA for full details and restrictions.
To ensure we are providing you with the most up to date information available please visit our Manufacturer Technical Information page
Technical specification
Length
2400 mm
Thickness
25 mm
Width
1200 mm
Material
PIR
Coverage
2.88 m2
Thermal Conductivity
0.022 W/mK
Certifications Met
BBA Certificate Number 16/5352
BBA Certificate Number 17/5405
Excellent PIR board. Easy to work with (easier than 50mm or 100mm) and performs well above the 25mm thickness you'd expect. Cheaper than Kingspan too!
1 year ago
Mark
Type of purchase: DIY
Yes, I would recommend to a friend
1
0
5
Good clean material to work with
Used to construct chamber to protect gas fired boilers from frost damage in severe weather.
Speedy service by staff in the yard at Wickford branch enabled rapid response and completion of job
2 years ago
customer
Type of purchase: Trade
Yes, I would recommend to a friend
4
0
4
Yes I will be using this again
Celotex used to provide heat barrier in a artificial fireplace