Description
Polyfoam System Closer comprises Polyfoam extruded polystyrene
insulation semi-enclosed in a rigid PVC casing. It is available in
a range of sizes to suit cavity widths from 50 to 100mm wide.
Polyfoam Combi-Closer is a patented development of Polyfoam
System Closer, that has a number of grooves in the extruded
polystyrene so it can be cut on site to suit a range of cavity
widths.
Application
Polyfoam System Closer and Polyfoam Combi-Closer are used
between the inner and outer leafs of masonry cavity walls at
openings to minimise thermal bridging.
They can be used with both partial and full fill cavity wall
insulation.
Standards
Polyfoam System Closer and Combi-Closer are manufactured in
accordance with BSI Quality Assurance Standard BS EN ISO 9001:
2000.
Durability
The continuous service temperature limits of Polyfoam System
Closer and Combi-Closer are -50 to +75º C.
Moisture absorption
Polyfoam System Closer and Combi-Closer have a moisture
absorption of 0.4% by volume.
Environmental
Polyfoam System Closer and Combi-Closer are free from CFCs,
HCFCs and any other material with ozone depletion potential in
their manufacture and content and represent no known threat to the
environment. Polyfoam System Closer and Combi-Closer are non
bio-degradable.
Polyfoam System Closer and Combi-Closer are 100% recyclable
Moisture resistance
Polyfoam System Closer and Combi-Closer provide a damp proof
barrier between the outer and inner leafs. The casing and the
Polyfoam core are both highly moisture resistant. The casing has a
flexible strip attached to fit into the rear of door and window
frames to act as an extra damp proof seal.
Vapour Resistivity
Polyfoam System Closer and Combi-Closer have a vapour
resistivity of 450 MNs/gm.
Fire performance
Polyfoam System Closer and Combi-Closer contain a flame
retardant to inhibit localised ignition. When contained within a
cavity wall behind a plaster or similar finish they will not
prejudice the fire resistance of the wall.
Handling and storage
The lengths are easy to handle and nonirritant, no special
protective clothing is required when installing them.
Polyfoam System Closer and Combi-Closer are supplied in
polythene packs, labelled with identifying product and
manufacturing data.
Ensure they are not stored close to open flame or other ignition
source, also avoid volatile compounds and chemicals such as
solvents.
Polyfoam products should not be left exposed to prolonged
sunlight as this will result in surface degradation. Where outside
storage for extended periods is required cover with opaque/light
coloured sheeting.
Product Data
Polyfoam System Closer
| Width (mm) |
Thermal conductivity
(W/mK) |
Nominal Density
(kg/m3) |
Length (mm) |
Thickness (mm) |
| 100 |
0.030 |
30 |
2400 |
25 |
| 85 |
0.030 |
30 |
2400 |
25 |
| 75 |
0.030 |
30 |
2400 |
25 |
| 65 |
0.030 |
30 |
2400 |
25 |
| 50 |
0.030 |
30 |
2400 |
25 |
All dimensions are nominal
Polyfoam Combi-Closer
| Width (mm) |
Thermal conductivity
(W/mK) |
Nominal Density
(kg/m3) |
Length (mm) |
Thickness (mm) |
| 75 |
0.030 |
30 |
2400 |
25 |
| 100 |
0.030 |
30 |
2400 |
25 |
All dimensions are nominal