Polyurethane / PU foam
SAR 70–90/m² for 5 cm PU foam as a Riyadh market reference
When it fits
Liquid PU can create a seamless membrane; closed-cell spray foam can combine thermal insulation with a protected waterproofing build-up.
What to inspect
Substrate moisture, applied thickness, UV protection and detailing are critical to performance.
Before comparing quotes
Do not treat liquid polyurethane membrane and spray PU foam as the same product or price category.