Therm-A-Foam

The table in the description below provides a guide to the correct Therm-A-Foam dimensions for a range of building joint widths and fire resistance requirements.

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Informatieblad Therm-A-Foam (PDF)

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Product Ref: FM Categorie: Structurele brandwerende afdichtingen Usage: Brand

FEATURES & BENEFITS

Therm-A-Foam is a preformed linear joint seal comprising one or more layers of 10mm or 20mm flame retardant polyurethane foam coated on both sides with Therm-A-Flex intumescent material.

These layers are combined to produce a product suitable for sealing a range of gaps sizes in building structures.

The flexible open cell foam structure allows Therm-A-Foam to compress by approximately 50%, thereby enabling it to take the
shape of the building joint it is protecting.

At approximately 180°C the installed Therm-A-Flex begins to expand. During this expansion the flame retardant foam degrades and is replaced by the expanding intumescent graphite thus providing fire protection to the building joint.

	Fire Resistance
	60 mins	90 mins	120 mins	180 mins	240 mins
Gap Width	Depth of Firefoam fill required
10	25	25	25	35	40
20	25	25	30	40	50
30	25	25	30	40	50
40	30	30	35	45	55
50	35	35	45	60	75
60	35	35	45	65	90
70	40	40	50	75	105
80	40	40	50	85	105
90	45	45	55	85	105
100	50	50	60	85	105