Bitumen membrane for apartments in Allith
In short: In Allith (Allith), bitumen membrane for apartments begins with the roof, falls and drains survey and the flood test; nothing is opened until the position is clear. The centre of Allith sits about 5 m above sea level (SRTM open elevation data). Pricing starts from Bitumen membrane (per m²) (SAR 15–35 per m²), and other items are quoted after the visit.
Why bitumen membrane differs in Allith
The centre of Allith sits about 5 m above sea level (SRTM open elevation data). Allith is about 1.2 km from the sea coast (OpenStreetMap).
Main roads in or near Allith: Al Laith Road, Amr Bin Al Aas Street.
Is a bitumen membrane the right choice for an apartment roof or podium in Allith, and what will it cost? Allith sits about 5 m above sea level, and the sea coast is about 1.2 km away, so the town is close enough to the coast that salt-laden air and humidity are a real consideration for exposed roofing layers. Bitumen membrane for Allith apartments typically falls in the range of SAR 15–35 per m², which places it between liquid roof waterproofing at SAR 8–25 per m² and spray foam at SAR 20–45 per m². For a flat roof or terrace that needs a continuous, sheet-based barrier, that range is a practical reference point when you compare quotes.
A proper site visit starts with a walk across the full roof or podium to look for ponding areas, cracked screeds, failed old membrane seams and any upstands or parapets where water can track in. The inspector will check drainage outlets and their surrounds, look at the edges where the membrane must turn up, and note any signs of water staining on the ceilings of the top-floor apartments below. Where the surface is damp or the old finish is lifting, the inspector will record this before any quantity is agreed, because the substrate condition decides how much preparation the membrane needs. Measurements are taken of each area so the scope matches the actual roof rather than an estimate.
Before the visit, gather whatever paperwork you have, including any earlier repair records, previous waterproofing invoices and the building's roof plan if one exists. Clear access to the roof and to the top-floor apartments, and tell the inspector about any leaks you have already noticed and roughly when they appeared. Note which areas of the roof are used for water tanks, air conditioning units or satellite equipment, since these may need to be lifted or reinstated. Having this information ready helps the inspection cover the points that matter and makes the written scope for your Allith apartment easier to compare with other offers.
In an apartment, a problem may start in your unit or in a shared line; we separate the two before any work.
When do you need bitumen membrane?
If you notice one of these signs in Allith, it is a good moment to talk to the team:
- A flat concrete roof that needs waterproofing
- Old rolls that are cracking
Where the problem usually comes from
- A common cause: no protection layer.
- Seams that were not welded properly — we check this before anything else.
How we choose the tool in Allith
| Method | What it helps with | Its role in Allith |
|---|---|---|
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
| 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
- Preparation: Cleaning, priming and repairs.
- Torch welding: Overlaps are welded and checked.
- Details: Upstands, drains and bases.
- Protection and flood test: Protection is laid after a successful flood test.
Allith in facts and sources
| Item | Value | Source |
|---|---|---|
| District profile | Allith is about 1.2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Allith sits about 5 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| Roads | Main roads in or near Allith: Al Laith Road, Amr Bin Al Aas Street | Kashf data (owner) |
| Bitumen membrane (per m²) | SAR 15–35 per m² | Owner price list (Allith) |
Questions from Allith
What is the first step of bitumen membrane for apartments?
We start with preparation (cleaning, priming and repairs), then torch welding (overlaps are welded and checked).
How much does bitumen membrane cost in Allith?
From our published price list: Bitumen membrane (per m²) SAR 15–35 per m². Quantities are confirmed at the inspection.
What do I get at the end?
Photos of the welds and the flood-test result, in a technical report that carries a verification code.
What we advise against
- Leaving the membrane exposed without protection
What you get after the work
The written output: photos of the welds and the flood-test result. The report is numbered and can be checked with its verification code.
Practical notes for residents of Allith
- 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)
- Kashf data (owner)
- Owner price list for Allith
- 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