Xtratherm Flat Roof Board FR-TP
Thermal Ply
Xtratherm Thin-R Thermal Ply is a composite insulated panel of Xtratherm Polyisocyanurate core with a composite foil face, bonded to 6mm WBP grade plywood. FR-TP is designed to provide high levels of thermal insulation and decking in one operation for new and refurbishment flat roof applications.
Thermal Ply
Xtratherm Thin-R Thermal Ply is a composite insulated panel of Xtratherm Polyisocyanurate core with a composite foil face, bonded to 6mm WBP grade plywood. FR-TP is designed to provide high levels of thermal insulation and decking in one operation for new and refurbishment flat roof applications.
- Insulation & Decking in one fix
- For new & refurbishment roofs
- Rapid weather proofing
TYPICAL PHYSICAL CHARACTERISTICS
| PROPERTY | UNITS |
|---|---|
| Density (Foam Core) | 32 kg/m³ |
| Compressive Strength | >150 kPa @10% |
| Water Vapour Resistivity | >100MNs/gm |
| Thermal Conductivity | 0.023 W/mK |
XTRATHERM FR-TP SHEET SIZE
*Thickness includes 6mm plywood
Fire: The fire rating when tested to BS 476 Part 3: 1968 ‘External Fire Exposure Roof Test’ will be dependent upon waterproofing system specified.
See the Specification Clause
| DIMENSIONS | SIZE (mm) |
|---|---|
| Length | 2400 |
| Width | 1200 |
| Thickness* | 56 | 76 | 81 | 96 | 106 |
Fire: The fire rating when tested to BS 476 Part 3: 1968 ‘External Fire Exposure Roof Test’ will be dependent upon waterproofing system specified.
See the Specification Clause
A second layer of Xtratherm may be added between the joists to increase the thermal performance of the roof or to allow a reduction in the thickness of material over the joists
The Xtratherm FR-TP provides a high level of thermal insulation and decking in one application
Xtratherm FR-TP is faced on the underside by a gas-tight foil membrane, bedding the panel onto the bed of mastic creates a continuous vapour control layer
INSTALLATION GUIDELINES
Flat Roof Insulation
Xtratherm FR-TP should be fixed to minimum 50mm thick joists at 600mm centres max. with the plywood uppermost.
Boards should be staggered and butted with a 2mm gap between board, each edge should have a minimum bearing of 20mm on joist.
All edges should be supported - add noggins where necessary. Stagger fixings where boards are butted.
Boards should be embedded in vapour resistant mastic to provide a vapour control layer in conjunction with foil facing.
Mastic should be laid wide enough to facilitate 2 panel edges and be continuous around all edges.
FR-TP should be fixed with low profile screw fixings, placed at 200mm centres around the perimeter of the boards and at 300mm centres along any intermediate supports.
All fixings should penetrate the joists by a minimum of 35mm and be placed 12mm from the edge of the FR-TP, and no further than 50mm from any corners.
Care should be taken to ensure that the heads of any fixings are flush with the plywood surface and not over-driven.
The roof should be fire protected to the underside by plasterboard or other approved material.
FR-TP is suitable for maintenance traffic loadings only.
Xtratherm FR-TP should be fixed to minimum 50mm thick joists at 600mm centres max. with the plywood uppermost.
Boards should be staggered and butted with a 2mm gap between board, each edge should have a minimum bearing of 20mm on joist.
All edges should be supported - add noggins where necessary. Stagger fixings where boards are butted.
Boards should be embedded in vapour resistant mastic to provide a vapour control layer in conjunction with foil facing.
Mastic should be laid wide enough to facilitate 2 panel edges and be continuous around all edges.
FR-TP should be fixed with low profile screw fixings, placed at 200mm centres around the perimeter of the boards and at 300mm centres along any intermediate supports.
All fixings should penetrate the joists by a minimum of 35mm and be placed 12mm from the edge of the FR-TP, and no further than 50mm from any corners.
Care should be taken to ensure that the heads of any fixings are flush with the plywood surface and not over-driven.
The roof should be fire protected to the underside by plasterboard or other approved material.
FR-TP is suitable for maintenance traffic loadings only.
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