Calculating interlocking roof tiles

Please use our online roof tile calculator to calculate an estimate of how many interlocking roof tiles you need for the whole of a gable to gable roof. The calculator makes four calculations to calculate the amount needed:

Interlocking roof tile calculator

Enter length of the roof (eave length): cm

Enter length of the gable end roof verge: cm

Enter width of the interlocking roof tile: cm

Enter height of the interlocking roof tile: cm

For one side of the roof:

Interlocking roof tiles are needed across the roof length (eave)

Courses of interlocking roof tiles are needed up the roof verge

For the whole roof:

Approximately interlocking roof tiles are needed for this type of roof (including 5% wastage)

Please note that this is an approximate estimation based on a mathematical formula. If you need a more accurate figure we recommend that you carry out your own independent calculation

 

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