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Timloc 2.4m Thermo-loc Platinum Plus FX Multi Check Reveal Cavity Closer - 50mm to 100mm

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£125.93 Incl. VAT
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Suitable for cavities between 50mm-100mm, this check reveal C FX profile Thermo-loc Platinum Plus FX Cavity Closer is a durable and resistant barrier used for eliminating cold bridging and damp from around walls, windows and sills. It provides an effective Damp Proof Course and thermal barrier between frame, inner and outer wall leaf.  Timloc's range of cavity closers and acoustic fire rated cavity stops offers a variety of insulation and performances to meet the varying requirements of today's projects. The multi width profiles have been specifically designed to enable merchants and stockists to hold two sizes only, which can be quickly and easily trimmed on site to suit a variety of cavity width requirements.  A 'check reveal' is a detail that is particularly common in Scotland and Central Europe and involves an opening being formed in the external masonry skin where the external structural opening is smaller than the window frame and consequently the external face of the window frame when installed butts up against the back of the external skin. In this scenario the primary weather seal is formed between the front face of the window and the opening rather than the outer perimeter of the window and a conventional 'flush' reveal.

Cavity closers are rigid and lightweight UPVC profiles fitted with insulation material. They are used to close openings in cavity walls, such as external walls and windows and can also be used to pre-form openings when the door and/or window frames are to be installed later.

Features & Benefits: Timloc 2.4m Thermo-loc Platinum Plus FX Multi Check Reveal Cavity Closer - 50mm to 100mm

  • Quick and easy on site-trimming to cope with 'rogue' cavity widths
  • Exceeds the minimum thermal resistance path of 0.45m²k /w stipulated in accredited construction detail
  • Rigid profile extrusion
  • Durable and resistant to decay
  • Profile can be easily cut using the pre-cut grooves and installed on site
  • Global Warming Potential of less than 5
  • Satisfies NHBC Standards Manufactured to BS EN ISO 9001 and BS EN ISO 14001
  • Complies with building regulations approved documents C, L1 & L2 Satisfies BRE document
  • Cavity Width: 50mm to 100mm
  • Ozone Depletion: Zero


  • The accredited construction detail published by DCLG require a minimum overlap of 30mm between the window frame and cavity closer
  • Can be used in second fix applications. Simply cut the Cavity Closer to the required length, allowing the jamb section to overlap the sill section by cutting away parts of the fixing flange and to butt the underside of the lintel.
  • For second fix applications, push the Cavity Closer into the open side of the cavity after building work is complete. The compressible nature of the exposed insulation is used to create a friction fit into the cavity, alternatively the insulation can be trimmed to fit using a sharp knife.
  • Fixing nails or grab adhesive to the flanges are recommended to ensure a secure fit.
  • Cavity insulation to butt tightly to the cavity closer Joining 'off cut' sections should be kept to a minimum and not carried out to sill sections. Insulation should be extended from the lower closer profile to allow this to slot into the upper profile to maintain a rigid section. All overlaps should be sealed with tape.


Length 2400mm Thickness 25mm Width 190mm


Thermal Conductivity 0.031 W/mK Material Extruded uPVC Pack Size Pack of 11

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Timloc 2.4m Thermo-loc Platinum Plus FX Multi Check Reveal Cavity Closer - 50mm to 100mm

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