Polyfoam Wall Insulation Products: Polyfoam System Closer

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Polyfoam Acoustic Materials: Polyfoam System Closer

Below you will find information on specific products within our range. To ensure that you purchase the correct products to suit your requirements we recommend that, you contact one of our qualified customer focused advisors, who will be only too pleased to help. Please call 08451 306 269 or email us for a quote or advice.

Polyfoam System Closer

Short Description
System Closer comprises Polyfoam high performance, 100% ozone friendly, extruded polystyrene, rigid board insulation semi-enclosed in a rigid PVC casing. Polyfoam System Closer is available in sizes to suit specific cavity widths from 50mm to 100mm.
Fire Performance
Polyfoam System Closer contains a flame retardant to inhibit localised ignition. When contained within a cavity wall behind a plaster or similar finish it will not prejudice the fire resistance of the wall.
Thermal insulation
Polyfoam System Closer utilises a high performance insulant, with aged quoted thermal performance values which is virtually unaffected by moisture on site. It easily complies with the thermal requirements for cavity closers in the England and Wales Building Regulations for preventing thermal bridging at openings.
Moisture resistance
Polyfoam System Closer provides 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.

Handling and Storage

Polyfoam System Closer is supplied in polythene packs, labelled with identifying product and manufacturing data. The lengths are easy to handle and non-irritant, no special protective clothing is required to install them. 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. Ensure they are not stored close to open flame or other ignition source, also avoiding volatile compounds and chemicals such as solvents.

Product Data

Polyfoam System-Closer has a Moisture Absorption by Volume of 0.20% and Continuous Service Temperature Limits of -50°C to +75°C.

Polyfoam System Closer:Nominal Density 30kg/m³, Minimum Compressive Strength 200kPa

Thickness (mm)	Length (mm)	Width (mm)	Thermal Conductivity (W/mK)	Water Vapour Resistance (MNs/gm)
50	2400	25	0.030	500
65	2400	25	0.030	500
75	2400	25	0.030	500
85	2400	25	0.030	500
100	2400	25	0.030	500