Modified bitumen

SAR 40–55/m² for a two-layer system as a Riyadh market reference

When it fits

Common on flat roofs when surface preparation, laps, details and torching/welding are executed correctly.

What to inspect

APP-modified membranes are commonly selected for heat/UV resistance, while SBS products emphasize flexibility. Check the actual product data sheet.

Before comparing quotes

Compare membrane thickness, number of layers, reinforcement, overlaps, upstands, drains and protection—not price alone.