Our Services
Roof Waterproofing
Liquid-applied and sheet membrane systems that keep KSA roofs watertight through extreme heat, UV exposure and thermal shock.
Overview
How we approach it
Roof waterproofing is the installation of a continuous waterproof membrane — liquid-applied or sheet — over a roof slab to stop water entering the structure. Any flat or low-slope roof in Saudi Arabia needs it; without it, thermal cracking and rain quickly reach the concrete and the floors below.
Saudi roofs face a punishing combination: surface temperatures above 70°C in summer, sharp night-time cooling, sandstorms, and then sudden heavy rain that finds every weakness at once. Most roof leaks we survey are not caused by bad materials — they're caused by the wrong system for the roof type, poor detailing at drains and upstands, or membranes applied over unprepared substrates.
We start with a survey of the existing roof: build-up, falls, drainage, cracks and previous repairs. Based on the diagnosis we specify the right Sika® system — Sikalastic® liquid-applied membranes for complex roofs with many penetrations, SikaBit® / Sika® bituminous sheet systems for large open slabs, and SikaRoof® build-ups where insulation and reflective finishes are needed to cut cooling loads. Every detail — drains, pipes, AC plinths, parapets — is treated per the Sika method statement, because details are where roofs fail.
As the official distributor we supply the material from our own stock and install it with our own certified crews, so the membrane, the workmanship and the warranty all come from one company.
Typical scope
- Survey & diagnosisRoof condition, drainage and moisture mapping before any quotation.
- PreparationRemoval of failed layers where required, crack repair, priming and detailing of penetrations.
- System installationSikalastic® / SikaBit® membrane applied per Sika method statement with experienced application crews.
- Flood test & warrantyWater test on completion and a single-source material + workmanship warranty.
Related services: Joint Treatment · Water Tank Waterproofing
Common questions
Frequently asked questions
How much does roof waterproofing cost in Saudi Arabia?
Cost depends on roof area, condition and the system specified — liquid-applied membranes and bituminous sheets price differently per square metre. Because we're the Sika distributor, you pay distributor material pricing rather than contractor markup. A free site survey gives you a fixed quotation, usually within days.
How long does roof waterproofing last in KSA heat?
A correctly specified and installed Sika system typically protects for 10–15 years or more, even under Saudi surface temperatures above 70°C. Lifespan depends most on detailing at drains, upstands and penetrations — which is where our experienced crews focus — and on using UV-stable systems designed for this climate.
Can you waterproof a roof without removing the old layer?
Sometimes. If the existing membrane is well-bonded and dry, certain Sikalastic liquid systems can be applied over it after preparation and priming. If the old layer is saturated or debonded, overlaying traps moisture and fails — our survey includes moisture testing to make that call honestly before quoting.
Which is better: liquid membrane or rolled sheet waterproofing?
Neither is universally better. Liquid-applied Sikalastic excels on complex roofs with many penetrations and details because it's seamless. Bituminous sheet systems suit large open slabs where fast, economical coverage matters. We specify based on your roof's geometry, use and budget — not on what's in stock.