Rooftop Waterproofing Calculator
Urethane membrane material by area
Rooftop Waterproofing
Total
0 kg
※ Urethane ~3.0-3.8 kg/㎡; check the datasheet.
Details
⚠️ Reference estimate based on typical coverage rates. Waterproofing and coating products are not standardized; usage varies greatly by product, substrate, film thickness and number of coats. Always verify with the product datasheet and site conditions. calcstool.com assumes no liability for material shortage, excess or loss.
FAQ
How much per ㎡?
Urethane membrane is ~3.0-3.8 kg/㎡ (2-3 coats, 3mm). Rubber asphalt ~3.5, varying by product.
How much primer?
Usually 0.2-0.3 kg/㎡.
Which method for roofs?
Urethane membrane is most common for exposed roofs; rubber asphalt and sheet are also used.
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