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Skumkalkylator: hur många burkar PU-skum?

How many cans of PU foam do you need? Enter windows and doors or the joint length – the calculation uses the joint yield according to the data sheet, not the free-foam volume.

–cans

Metres of joint per can apply to the standard joint according to the data sheet. Wider or deeper joints need correspondingly more. At a window, foam is only the insulation layer – a sealing layer is also needed inside and outside (RAL installation).

Calculation: joint length [m] ÷ metres of joint per can (data sheet), rounded up. Joint length from window dimensions: number × 2 × (width + height). Guide value according to the manufacturer's data sheet, as of 01.10.2026.

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På burken står oftast volymen fritt skum. I fogen skummar 1K-skum dock upp bara till en bråkdel av det. Den här kalkylatorn arbetar därför med fogutbytet i meter per burk, så som tillverkarna anger det i databladet.