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ROCKWOOL U-value calculator

The ROCKWOOL U-value Calculator incorporates BIM. It also allows you to quickly calculate the thermal performance of walls, floors and roofs, with around 2,500 pre-determined calculations. Using the selection boxes below, please work your way through the options to calculate the desired U-value and produce your BBA/TIMSA Scheme approved calculation result. You can also download the BIM object for the whole build-up in IFC format.

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