Roof waterproofing for restaurants in Aldarb
In short: In Aldarb (Aldarb), roof waterproofing for restaurants begins with the roof, falls and drains survey and the moisture meter for ceilings and walls; nothing is opened until the position is clear. The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Published price: Liquid roof waterproofing (per m²), SAR 8–25 per m²; anything else is quoted after the inspection.
Before we start: what we know about Aldarb
The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data). Aldarb is about 18.7 km from the sea coast (OpenStreetMap).
Picture a restaurant owner in Aldarb who has just opened for the season. The kitchen extraction fans run through the day, the dining room is full at night, and the flat roof above the kitchen has begun to show a damp patch on the ceiling after a heavy shower. Nobody wants to close the dining room for a week, and nobody wants a leak above the grill station. This is a common situation for food businesses, where roof problems tend to be noticed only once water has already reached the interior.
Aldarb sits about 79 m above sea level, and its centre is about 18.7 km from the sea coast. For a restaurant roof, these facts mean the building is inland and at a moderate elevation, so the main concern is rainwater running off and pooling on a flat surface rather than salt-laden spray. Standing water is the usual enemy, so drainage outlets, gutters and any low spots deserve as much attention as the membrane itself. Because the roof often carries kitchen equipment, vents and access hatches, every penetration is a potential entry point for water.
Start by walking the roof after a rainfall and marking any ponding, cracked sealant or lifted edges. Clear outlets and check that the slope directs water toward them. Next, decide on the system that suits the roof: liquid roof waterproofing is often the lighter option for an existing flat surface, while a bitumen membrane gives a more traditional layered finish, and XPS boards can add insulation beneath a protective layer. Where cracks run along the roof or around upstands, crack injection can be applied before the main coating. Finish by inspecting the work after the first rain, and keep a simple record of the roof's condition so future checks are quick and planned rather than made during an emergency.
For restaurants, visits are planned outside service hours and recorded for the premises file.
Signs worth paying attention to
If you notice one of these signs in Aldarb, it is a good moment to talk to the team:
- Stains on the top-floor ceiling after rain
- Water pooling on the roof
- The old waterproofing is cracking
The most common causes
- Damaged waterproofing around tank and AC bases.
- Wrong falls towards the drains.
- A common cause: cracks in the roof slab.
Tools we use in Aldarb
| Tool or method | What it measures | Why it is chosen here |
|---|---|---|
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
How the work is done, step by step
- Survey: Falls, drains and the condition of the old layer are recorded.
- Preparation: Cleaning and repairs before any new layer.
- Primer: The base coat that the system needs.
- Waterproofing layers and details: Corners, upstands and bases get their own detail.
- Flood test: The roof is flooded and checked before it is covered.
Facts and costs — Aldarb
| Item | Value | Source |
|---|---|---|
| District profile | Aldarb is about 18.7 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Aldarb sits about 79 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Liquid roof waterproofing (per m²) | SAR 8–25 per m² | Owner price list (Aldarb) |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Aldarb) |
Questions from Aldarb
What is the first step of roof waterproofing for restaurants?
We start with survey (falls, drains and the condition of the old layer are recorded), then preparation (cleaning and repairs before any new layer).
How much does roof waterproofing cost in Aldarb?
From our published price list: Liquid roof waterproofing (per m²) SAR 8–25 per m²; Bitumen membrane (per m²) SAR 15–35 per m². Quantities are confirmed at the inspection.
What do I get at the end?
A quality record with photos and the flood-test result, in a technical report that carries a verification code.
What we advise against
- Covering the waterproofing before the flood test
- Ignoring the tank bases
What you get after the work
The written output: a quality record with photos and the flood-test result. The report is numbered and can be checked with its verification code.
If you live in Aldarb and are new to the area
- Have access ready to the water meter, the tank hatches, the roof and the main valve; in apartment buildings the roof keys are often with the building guard (haris).
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- If you rent, tell your landlord or building management before the visit and agree in writing who pays; the written report can be shared with them.
Sources and method
- SRTM (NASA) open data
- © OpenStreetMap contributors (ODbL)
- Owner price list for Aldarb
- Local pages are published only after a quality gate: real local facts, text similarity of no more than 15% with any other English page, and a claims check.
- النسخة العربية