These Timloc Thermo-loc thirty-minute fire-rated cavity closers deliver an efficient DPC and thermal barrier between the exterior wall and interior frame leaf. They have a thermal conductivity of 0.036W/mK and surpass the minimum thermal resistant path of 0.45m²K/W.
Ideal for all frame and sill positions with the rigid profile extrusion, these durable Thermo-loc cavity closers are resistant to decay. Exceptionally environmentally friendly, they have zero Global Warming Potential and zero Ozone Depletion Potential. They can be utilised in both first and second-fix applications in timber and masonry walls with cavities up to 300mm.
Features & Benefits: Thermo-loc Fire Rated Cavity Closer 90mm x 2.4m – Pack of 10
- For between interior frame and exterior wall leaf
- Effective DPC and thermal barrier
- Environmentally friendly
- Resistant to decay and durable
- Suitable for all frame and sill positions
- 0.036W/mK thermal conductivity
- Can be used in both first and second fix applications
- 30-minute fire rating
- Ideal for masonry and timber walls
- 2.4m length x 90mm cavity width
Standards & Certification
- Manufactured to BS EN ISO 14001 and BS EN ISO 9001
- Satisfied NHBC Standards
- Complies with Robust Details ‘limited thermal bridging and air leakage’
- Complies with Building Regulation Approved Documents C, B, L1 & L2
- Complies with the Scottish Building Standards ‘Technical handbook’
- BBA approved
- Satisfies BRE document ‘Thermal insulation – avoiding risks’
- LABC Registered Detail
- Meets all relevant British Standards
- Independently tested by Exova Warrington Fire
Please note:
- These Themo-loc Fire Rated Cavity Closers (2.4m) come in a pack of ten lengths.












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