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Loft insulation calculator

loft insulation

This easy to use loft insulation calculator will calculate the amount of insulation you require to insulate your loft to the recommended thickness. Just enter the area in square metres of your loft, the current thickness of your loft insulation in mm and which type of insulation you would like to use.

To calculate the area of you loft, simply multiply its width by its length in metres.

Your loft:

Loft area (m2):

Current insulation depth (mm):

Insulation type:

Recommended loft insulation:


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