CELOTEX TD4000 PDF

The thinnest product manufactured by Celotex, TB is a high performance, rigid polyisocyanurate PIR insulation board specifically designed to address thermal bridging and reduce localised heat losses. It can be used throughout a building project to help maintain continuity of the insulation envelope, and is suited to floor , wall and roof systems. Specific applications include perimeter upstand insulation in ground floors and lining door and window reveals in retrofit projects. Made at our original site in Hadleigh or our state-of-the-art facility in Eggborough opened in , it can help you achieve reliable, long-term energy savings.

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Product Installation Celotex Tempchek TD products should be installed in accordance with these instructions Ensure that joist spacing is at no more than mm centres and that the dimension of the joist is sufficient to span and accept additional loads.

If asphalt weathering is to be used, joists should be at no more than mm centres. Install the insulation boards, ensuring that the long edges are parallel to the line of the joists.

Where boards butt together, bed onto twin beads of vapour sealant wide enough to accommodate this arrangement. Lay the boards with the plywood side uppermost and stagger board joints. Leave a gap of approximately 2mm between boards and ensure a minimum 20mm bearing on joists and noggings. Fix Celotex TD with corrosion-proof Suretwist Composite Panel helical fasteners at a frequency to suit the design wind load.

As a guide, 16 fasteners per board will resist a wind load of 2. Ensure that fixings are no less than 10mm in from the board edge or 50mm from each corner. They should be equally spaced along the supporting joists.

Fixings should be long enough to penetrate at least 38mm into the supporting timber. Stagger opposing fixings where two board edges share the same joist or noggin. Provide a complete insulation envelope by extending the wall insulation board up to the underside of the roof deck. Provide a soffit or ceiling below the joists, as the surface of the product is not designed to be used as a decorative internal finish.

Ensure that the plywood is completely dry before any weathering system is applied. When using a single-ply membrane, additional 12mm plywood has to be applied on top of the Celotex TD Temporary protection must be provided for both the insulation and the waterproofing, if significant foot traffic is anticipated either during or after installation.

Falls The structure should be designed so that the finished roof has a continuous, smooth and even slope towards the rainwater outlet or gutter.

The minimum fall should be to avoid ponding water. This gives the product excellent strength. Boards can span up to mm joist centres to provide a suitable substrate for a variety of weathering systems. Vapour control layer Celotex TD has a built-in VCL due to the foil facers but this is discontinuous at the board joints.

In some applications no further attention to moisture control may be necessary. Celotex would generally recommend the application of a vapour sealant between the tops of the boards at all edges. This is essential in areas of potentially high humidity. Telephone: 30p per minute - Fax: Email: technical celotex. Our Contact Details.

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Suitable applications include: Ground floors - whether solid concrete, block and beam, or suspended timber joist, and including where underfloor heating is used. Timber and steel framed walls - between and across the face of studs. Pitched roofs - between and across the face of rafters. Flat roofs - in ventilated cold roof constructions, installed from inside the building. Other retrofit and refurbishment projects - lining existing timber and masonry structures to make them more thermally efficient. Made at our original site in Hadleigh or our state-of-the-art facility in Eggborough opened in , you can be confident of it providing reliable, long-term energy savings. How does GA perform?

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Celotex TD4000

Product Installation Celotex Tempchek TD products should be installed in accordance with these instructions Ensure that joist spacing is at no more than mm centres and that the dimension of the joist is sufficient to span and accept additional loads. If asphalt weathering is to be used, joists should be at no more than mm centres. Install the insulation boards, ensuring that the long edges are parallel to the line of the joists. Where boards butt together, bed onto twin beads of vapour sealant wide enough to accommodate this arrangement. Lay the boards with the plywood side uppermost and stagger board joints.

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