Celotex TC3000 Product Applications

Celotex TC3000 is suitable for use in hot applied bituminous, mastic asphalting and torch-on systems.

Product Details

Celotex TC3000 provides a quick and easy method of achieving effective thermal insulation in built-up flat roofing applications including hot applied bituminous, mastic asphalting and torch-on systems.
With bitumen polypropylene fleece facers on both sides, TC3000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and a low global warming potential (GWP).

Product Benefits

Celotex TC3000 insulation for a board that:

Can be used in a variety of built-up flat roofing applications including hot applied bituminous, mastic asphalting and torch-on systems
Removes the issues of double layer systems, working with sandy facers and installing the board the wrong way up
Achieves U-values with minimum thickness
Is strong and durable
Is dimensionally stable and unaffected by temperature cycles
Is easy to cut and shape
Comes in a range of thicknesses from 50-150mm

Product Values

Celotex TC3000 comprises a polyisocyanurate rigid foam core insulation with bitumen polypropylene fleece facers on both sides. TC3000 is 'A' rated in the BRE Green Guide 2008 and CFC/HCFC free with zero ODP and low GWP. The product is manufactured in accordance with quality management system BS EN ISO 9001:2000.

Installation Guidelines

Hot-applied systems

The felt vapour control layer (VCL) in accordance with BS 6229 should be fully sealed at all laps prior to applying the insulation. At perimeters and abutments the VCL should be turned up around the insulation board edges and a flap of approximately 300mm should be bonded to top surface of the insulation. The VCL should be fully bonded to concrete decks using hot bitumen adhesive, strip-bonded to the ribs of metal decks and partially bonded to timber decks. On timber decks, the VCL may be nailed to the deck but laps should be sealed with the appropriate adhesive.

Three layer felt system using torch-on technique

The felt vapour control layer (VCL) in accordance with BS 6229 should be fully bonded to the deck prior to the installation of the insulation.
Bond the boards to the VCL and lay the insulation with joints break-bonded. Alternatively the boards can be mechanically fixed to the deck.
Loose lay the venting layer directly over the insulation boards.
Torch-on the underlay sheet over the venting layer and to finish torch the mineral surface cap sheet to the underlay.
To ensure the best possible bond, the torch-on technique should apply 60% of the flame to the board with 40% to the felt.
Celotex TC3000 is also compatible with pour and roll and mastic asphalting installation techniques.