Quantities & Estimating
How much waterproofing materials do I need for my project?
Direct answer
Bitumen membrane rolls cover 10 m² each with overlaps, so a 100 sqm roof needs 11-12 rolls plus 25 litres of primer. For an exact take-off across every trade, Benna's free BOQ calculator turns your project dimensions into a priced material list you can add to cart in one click.
Waterproofing Materials key specifications
| Price range | SAR 85-480 per roll or 20kg pail |
|---|---|
| Minimum order | 10 rolls or 10 pails for project pricing |
| Membrane roll | 1 × 10 m, 3-4 mm thick |
| Liquid coverage | 1.5 kg/m² for 2 coats |
| Heat resistance | Up to 120°C (APP membranes) |
| Warranty | 5-10 years typical |
| Standards | SBC 601 roofing requirements, ASTM D6164 for SBS membranes |
Key takeaways
- Bitumen membrane rolls cover 10 m² each with overlaps, so a 100 sqm roof needs 11-12 rolls plus 25 litres of primer.
- Torch-applied bitumen membranes suit roofs and foundations; liquid polyurethane suits complex details, wet areas and tight bathroom corners.
- Available brands: Sika, Mapei, Bituchem, Henkel, Fosroc
- Delivered to 165+ Saudi cities.
Related questions
How much waterproofing materials do I need?▾
Bitumen membrane rolls cover 10 m² each with overlaps, so a 100 sqm roof needs 11-12 rolls plus 25 litres of primer.
Which standards apply to waterproofing materials in Saudi Arabia?▾
SBC 601 roofing requirements, ASTM D6164 for SBS membranes
What is the minimum order quantity?▾
10 rolls or 10 pails for project pricing