Roof waterproofing in Jeddah: before summer & rain season
In short: Roof waterproofing (before summer & rain season) in Jeddah starts with the roof, falls and drains survey, then the moisture meter for ceilings and walls, before anything is opened. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data). Pricing starts from Liquid roof waterproofing (per m²) (SAR 10–25 per m²), and other items are quoted after the visit.
Roof waterproofing in Jeddah: the local context
Team note on Jeddah: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins.. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data).
Jeddah is about 2 km from the sea coast (OpenStreetMap).
Roof waterproofing in Jeddah starts with the location itself. The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data), and the city is about 2 km from the sea coast (OpenStreetMap). Because of this, a technician first checks how water drains off the roof surface and where it would collect, rather than assuming a flat roof will shed rain on its own. Salt-laden air near the coast also affects surfaces and fixings, so the first check covers the condition of the existing membrane, any exposed edges, and the parapets and drain outlets where water tends to pool before it finds a way through.
Some points can only be settled on the day of the site visit. The technician will confirm the slope and drainage on the actual roof, the number and condition of outlets, and whether cracks run through the slab or only sit in the top layer. They will also decide which system suits the surface, such as liquid roof waterproofing or a bitumen membrane, and whether any insulation boards are needed beneath it. Pricing depends on the measured area and the linear metres of any crack injection, so a final quote is given only after the roof has been measured in person. Access routes, parking, and a safe working platform are also agreed on site.
To help the technician prepare, it is useful to share the roof's age, the type of finish already in place, and any past leaks, including where and when they appeared. Photos of ceilings below the roof, showing stains or damp patches, give a clear picture of where water has been entering. Please note whether the roof is used for water tanks, air-conditioning units, or foot traffic, as these affect where the work must be planned and protected. Clear access to the roof on the appointment day and a note of any rooms below that need protecting will let the work begin without delay.
Checks before summer and before the rain season catch problems while they are still small.
When do you need roof waterproofing?
These are the signs most often linked to roof waterproofing:
- The old waterproofing is cracking
- Stains on the top-floor ceiling after rain
- Water pooling on the roof
Where the problem usually comes from
- A common cause: cracks in the roof slab.
- Damaged waterproofing around tank and AC bases.
- Wrong falls towards the drains — we check this before anything else.
How we choose the tool in Jeddah
| Method | What it helps with | Its role in Jeddah |
|---|---|---|
| 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 |
| Flood test | Whether the waterproofing holds before it is covered | Limits: for roofs with drains and wet areas before tiling |
From the first visit to the report
- 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 — Jeddah
| Item | Value | Source |
|---|---|---|
| District profile | Team note on Jeddah: Kashf teams serve this city and its nearby districts with the same documented inspection standard: device-based leak detection without demolition, a written report, and a clear scope before any work begins. | Kashf team |
| District profile | Jeddah is about 2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Jeddah sits about 15 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Liquid roof waterproofing (per m²) | SAR 10–25 per m² | Owner price list (Jeddah) |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Jeddah) |
Questions from Jeddah
Can I use household chemicals instead of calling a technician?
Using unsuitable chemicals may corrode pipes and does not fix the root cause of the blockage, so it is better to rely on a specialist technician.
What is the difference between foam insulation and other types of insulation?
Foam insulation is easy to apply on uneven surfaces and forms one continuous layer with no joints, while other types, such as bitumen rolls, need the joints to be welded. The contractor decides which is most suitable after inspecting the site.
Can thermal insulation be applied to an existing building?
Yes, thermal insulation can be installed on the roofs and walls of existing buildings without the need for major structural modifications. The contractor prepares the surface, then applies the insulating material and the protective layer over it.
Where does roof waterproofing (before summer & rain season) start in Jeddah?
We start with survey (falls, drains and the condition of the old layer are recorded), then preparation (cleaning and repairs before any new layer).
What does roof waterproofing cost in Jeddah?
From our published price list: Liquid roof waterproofing (per m²) SAR 10–25 per m²; Bitumen membrane (per m²) SAR 15–35 per m². Quantities are confirmed at the inspection.
What do I receive after the work?
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.
Planning the visit in Jeddah
- You can message us on WhatsApp in English; the booking details are sent back to you in the chat to confirm before the visit.
- The Saudi weekend is Friday and Saturday; mention your preferred day and time when booking.
- Prices are in Saudi riyals (SAR); the final price is confirmed after the inspection, before any work starts.
- 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).
Sources and method
- SRTM (NASA) open data
- © OpenStreetMap contributors (ODbL)
- Kashf team
- Customer questions (reviewed)
- Owner price list for Jeddah
- 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