ROOFING CALCULATOR
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Try our LAVA 20
Roof Materials Calculator

Input your roof size and we will automatically generate a kit with recommended products & prices.

1

Step1

2

Step2

STEP 1

Please enter your roof size in feet and let our LAVA 20 Roof Calculator do the rest!

IMPORTANT

For non-square or non-rectangular roofs, calculate them by breaking them down into individual squares or rectangles.

m
m

STEP 2

Congratulations, your roofing quote is complete!

Suggested Products

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Lava 20 Vertical

 Price range: £86.50 through £166.30
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Lava Detail 20

 Price range: £21.50 through £71.40
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Looking for help
or advice?

Installing an OWL Waterproofing Solutions flat roof is a breeze. We offer handy resources like detailed PDF guides, online videos, and a convenient online calculator. For any inquiries or assistance, email us at info@owlwaterproofing.co.uk or call 01830 22 50 (Landline)

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