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Thermo-loc Fire Rated Cavity Closer 65mm x 2.4m - Pack of 10

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£144.40 Incl. VAT
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The Timloc Thermo-loc FR 30 minute fire rated cavity closers provide an effective DPC and thermal barrier between frame inner and outer wall leaf. It has the thermal conductivity of 0.036W/mK and exceeds the minimum thermal resistance path of 0.45m2K/W.

The rigid profile extrusion allows both first and second fix and is suitable for all frame and sill positions, making the Thermo-loc FR 30 minute fire rated cavity closers durable and resistant to decay.

Also, extremely environmentally friendly, Thermo-loc FR has a global warming potential of zero and Ozone depletion potential of zero too. 

Please note: Thermo-loc Fire Rated Cavity Closers (2.4m) come in a pack of 10 lengths.

Thermo-loc Fire Rated Cavity Closer Specifications

Cavity Width: 65mm
Unit Length: 2.4m
Lengths Per Pack: 10 Lengths
Fire Rating: 30 Minutes

Features and benefits

  • An effective DPC and thermal barrier between frame inner and outer wall leaf
  • Thermal conductivity of 0.036W/mK
  • Suitable for all frame and sill positions
  • Durable and resistant to decay
  • Global warming potential of zero
  • Ozone depletion potential of zero
  • Can be used in both first and second fix applications
  • Suitable for cavities up to 300mm
  • Suitable for timber and masonry walls


  • Independently tested by Exova Warrington Fire
  • LABC Registered Detail
  • BBA Approved
  • Satisfies NHBC Standards
  • Manufactured to BS EN ISO 9001 and BS EN ISO 14001
  • Complies with Building Regulation Approved Documents C, B, L1 & L2
  • Complies with Robust Details ‘limited thermal bridging and air leakage’
  • Complies with the Scottish Building Standards ‘Technical handbook’
  • Satisfies BRE document ‘Thermal insulation: avoiding risks’
  • Meets all relevant British Standards


Length 2400mm Width 65mm


Features Double Flange
Fire Rated
Product Type Cavity Closers

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Thermo-loc Fire Rated Cavity Closer 65mm x 2.4m - Pack of 10

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