100mm Thermo-loc 30 Min FR Cavity Closer

Thermo-loc FR30

Use
• To close the cavity at external doors, window jambs and sills.
• To provide thermal insulation and prevent ‘cold bridging’.
• To provide a DPC at external doors, window jambs or sills.
• 30 minutes fire rating and minimum 15 minutes insulation.
• Suitable for cavities up to 300mm.
• Suitable for timber and masonry walls.

Features and benefits
• Provides an effective DPC and thermal barrier between frame, inner and outer wall leaf.
• Thermal conductivity of 0.036W/mK.
• Exceeds the minimum thermal resistance path of 0.45m2K/W stipulated in ‘Part L’ accredited construction details.
• Rigid profile extrusion allows both first and second fix.
• Suitable for all frame and sill positions (see fig.1).
• Durable and resistant to decay.
• Insulation option to suit your requirements both thermal and fire rated.
• Global warming potential of zero
• Ozone depletion potential of zero
• Available fully rebated - Check reveal (single flange)

Installation advice
• Can be used in both first and second fix applications.
• Cut the cavity closer into required lengths allowing the jamb section to overlap the sill section and to butt the underside of the lintel
• In first fix application the cavity barrier should be nailed to the jamb/sill of the door or window frame and the whole assembly built in as
work proceeds. Alternatively the barrier can be built in sections using fixing ties as work proceeds.

• For second fix applications, the cavity closer is pushed into the open cavity after building work is complete. The compressible nature of
the exposed insulation material is used to create a friction fit in the cavity, secure nail fixing is required.
• Joining ‘off cut’ sections should not be carried out for the FR range.

How to order
• Establish the cavity width and select the correct cavity closer width, or the next size up to ensure the cavity can be closed.
• In jamb and sill applications, first estimate the total length of cavity barrier required, then order the correct number of individual 2.4
metre lengths so no joint pieces.
• Fixing ties are available for secure fixing if required (particular attention around door openings). Allow for ties fitted at 450mm centres.

Technical considerations
• BRE Document ‘Thermal insulation: avoiding risks’ and Robust Details stipulate: “When a window or door frame is set back behind the inner
face of a dense outer masonry leaf, it should overlap an insulated closer by a minimum of 30mm for BRE exposure zones Sheltered to
Severe; but fully rebated (check reveals for zones Very Severe’’ (see Fig.2).
• With reference to insulation, the products in this range do not use, contain or produce Urea Formaldehyde, CFC’s or indeed any of the
so called soft CFC’s, ie. HCFC’s & HFA’s. They conform to the Montreal Protocol and have an ozone depletion potential of zero and global
warming potential of zero.

Material
• Rigid profile extruded in white UPVC
• Supplied in 2.4 metre lengths
• Standard cavity options available 50mm - 300mm
• Rockfibre mineral wool (FR) insulation 0.036W/mk

Quality
• Independently tested by Warrington Fire
• LABC Registered Detail
• 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 ‘Part L’ accredited construction details
• Complies with the Scottish Building Standards ‘Technical handbook’
• Satisfies BRE document ‘Thermal insulation: avoiding risks’
• Meets all relevant British Standards