Key Properties
QUINN-therm
- does not readily absorb water, making it suitable for use in damp environments;
- is light, robust and easy to handle; it may be worked using a saw or sharp knife;
- is durable and will perform for the service life of the building.
Meeting Regulations
| Required thicknesses of QUINN-therm QW (mm) | ||||||
|---|---|---|---|---|---|---|
| Required U-value (W/m2K) | Thickness of QUINN-therm QL* (mm) | |||||
| 0.37 | 35 | 40 | 40 | 25 | ||
| 0.35 | 40 | 40 | 45 | 25 | ||
| 0.30 | 50 | 50 | 55 | 35 | ||
| 0.27 | 60 | 60 | 60 | 40 | ||
| 0.25 | 65 | 65 | 70 | 50 | ||
| Masonry | 215mm | 500mm | 215mm | 215mm | ||
| Brick | Natural stone | Dense block | Quinn Lite (B5) | |||
Results based upon wall construction of:
brick outer leaf, 40 - 50mm residual cavity, 12mm plywood sheathing, 89 or 140 mm timber studs at 600mm centres (15% timber fraction), polyethylene VCL, 12mm plasterboard.
Calculations performed to BS EN ISO 6946:1997, taking account of repeating thermal bridges.
Design Notes
- to meet some conditions with standard 89mm studs a layer of QUINN-therm insulation will be required on the outside of the sheathing.
- instead of brick, the outer face of the wall may be formed with rendered blockwork, tile-hanging, timber boarding or lightweight cladding systems.
- a VCL is required on the inside of the wall to prevent condensation forming within the structure.
Introduction
QUINN-therm QW (Quinn Wall) is a PIR (polyisocyanurate) insulation board intended for use in timber framed walls.
QUINN-therm consists of a core of PIR (polyisocyanurate) foam bonded on both faces to composite aluminium facings; the gas filled cells give QUINN-therm its high thermal performance and strength.
Timber framed construction combines the structural frame with the thermal insulation enabling the formation of walls which meet the energy efficiency requirements of building regulations without excessive thickness.
Using QUINN-therm QW high performance insulation between standard 89mm studs can give a thermal performance which matches the requirements for England and Wales. Lower U-values may be achieved either by increasing the stud depth or by adding insulation to the outside of the sheathing board.
Installation Guidance
Between studs
- Cut QUINN-therm QW boards to fit snugly between the studs.
- Push QUINN-therm QW into the gap between the studs.
- Fix VCL and internal finish.
Over sheathing
- Fix QUINN-therm boards to the studwork, through the sheathing with galvanised clout nails at 300mm centres. Butt boards tightly together.
- Fix wall ties for outer leaf of brickwork, or battens for tile-hanging.
Notes
- At corners butt boards tightly together.
- Cut QUINN-therm QW boards to fit tightly to door and window framing.
Handling & Storage
QQUINN-therm QW boards are supplied in shrink-wrapped packs. Store boards under cover and out of direct sunlight, keeping boards flat.
When handling QUINN-therm QW do not knock corners and edges. Cut QUINN-therm QW with a fine tooth saw or trimming knife.
| Product Data | ||
|---|---|---|
| Properties | Value | QUINN-therm QW |
| Board width x length | mm | 450 x 1200** |
| Board thickness | mm | 20 - 200 |
| Board density | kg/m3 | 26 - 32 |
| Area per board | m2 | 0.54 |
| Edge profiles available | Butt edged | |
| Performance Data | ||
| Properties | Value | QUINN-therm QW |
| Thermal conductivity* | W/mK | 0.022 - 0.023 |
| Water vapour resistivity | MNs/gm | ~ 400 |
| Compressive strength | kPa | >120 |
* quoted in accordance with BS EN 13165:2001 ‘Thermal insulation for Buildings - factory made polyurethane foam products’.
** other sizes may be available upon request.
