Free-flowing granules pour directly from the bag, filling tight, complex spaces inaccessible to standard glass wool or board insulation.
No cutting needed; creates a seamless, continuous heat-trapping surface.
Ultra-lightweight: Made of highly aerated particles with 90% air, enabling easy transport, handling, and lifting into lofts without stressing structural elements.
Permanently protects against fire, remains non-combustible and thermally stable up to 1300°C.
Decay and pest resistance: Its inert mineral makeup ensures long-term stability, preventing decomposition, deterioration, and attraction of insects and rodents.
Technical specification
Reaction to Fire BS476 Standard
Class 0
Reaction to Fire Euro Class
A1
Fire Resistance Minutes
Outstanding/Indefinite: Material remains unburned and unmelted under standard fire conditions.
Length
1000 mm (Bag Length)
Thickness
Variable
Width
520 mm (Bag Width)
Material
Exfoliated Vermiculite
Acoustic
Sound absorbent
Fire Retardant
Yes
Coverage
Covers 1 m2 at a standard 100 mm depth per bag
Thermal Conductivity
0.062 to 0.063 W/mK
Thermal Resistance R Value
16.1 m2K/W per metre of insulation depth
Heat Loss U Value
Variable
Usage
Ideal for loft insulation, chimney lining, internal cavity walls, void filling, and pipe protection
Celotex TB4000 PIR Insulation Board 2.4m in length, 1.2m in width, and has a thickness of 2.2cm, providing a total coverage area of 2.88 m2. Celotex TB4000 is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
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
Celotex XR4000 PIR Insulation Board 2.4m in length, 1.2m in width, and has a thickness of 14cm, providing a total coverage area of 2.88 m2. Celotex XR4000 is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low-emissivity foil facing.
Length
2400 mm
Thickness
140 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
TLX Multifoil Pitched Roof Insulation Gold: 10 m long, 1.2 m wide, 3.3 cm thick, covering 12 m2. A dual-function breather membrane that vapour vents and insulates like PIR, enhancing thermal performance without condensation or roof height changes. Suitable for refurbishments and new builds, preventing condensation and improving insulation. SD intelligent technology increases ventilation with moisture, removing the need for a vapour barrier. Lightweight, easy to install, with BBA certification and LABC approval. Ideal for historic, public, and social housing, barn conversions, new builds, and extensions.
Partial fill cavity wall PIR insulation. Fibre free rigid insulation core with aluminium foil composite to both sides. The boards are conveniently sized to co-ordinate with brick and block dimensions and allow the insertion of wall ties at the appropriate spacing.
Length
1200 mm
Thickness
75 mm
Width
450 mm
Material
Rigid polyisocyanurate PIR foam core with aluminium foil composite to both sides
Usage
New build and upgrading thermal performance of existing cavity walls
Celotex TB4000 PIR Insulation Board 2.4m in length, 1.2m in width, and has a thickness of 2.2cm, providing a total coverage area of 2.88 m2. Celotex TB4000 is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
Celotex XR4000 PIR Insulation Board 2.4m in length, 1.2m in width, and has a thickness of 14cm, providing a total coverage area of 2.88 m2. Celotex XR4000 is an easy-to-install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low-emissivity foil facing.
TLX Multifoil Pitched Roof Insulation Gold: 10 m long, 1.2 m wide, 3.3 cm thick, covering 12 m2. A dual-function breather membrane that vapour vents and insulates like PIR, enhancing thermal performance without condensation or roof height changes. Suitable for refurbishments and new builds, preventing condensation and improving insulation. SD intelligent technology increases ventilation with moisture, removing the need for a vapour barrier. Lightweight, easy to install, with BBA certification and LABC approval. Ideal for historic, public, and social housing, barn conversions, new builds, and extensions.
Partial fill cavity wall PIR insulation. Fibre free rigid insulation core with aluminium foil composite to both sides. The boards are conveniently sized to co-ordinate with brick and block dimensions and allow the insertion of wall ties at the appropriate spacing.