Floor & balcony waterproofing for schools in Allith
In short: In Allith (Allith), floor & balcony waterproofing for schools begins with the roof, falls and drains survey and the moisture meter for ceilings and walls; nothing is opened until the position is clear. Allith is about 1.2 km from the sea coast (OpenStreetMap). Pricing starts from Bathroom waterproofing (per m²) (SAR 15–40 per m²), and other items are quoted after the visit.
Why floor & balcony waterproofing differs in Allith
Allith is about 1.2 km from the sea coast (OpenStreetMap). The centre of Allith sits about 5 m above sea level (SRTM open elevation data).
Main roads in or near Allith: Al Laith Road, Amr Bin Al Aas Street.
Allith sits about 5 m above sea level, and the sea coast is about 1.2 km away, so the first thing a technician checks on a school floor or balcony here is how water reaches the slab and where it can drain. Because the site is close to the coast, salt-laden air and moisture can reach exposed concrete, so surfaces are inspected for efflorescence, hairline cracks, and areas where ponding water has been sitting. On flat roofs and open balconies the first checks are the falls and outlets, since standing water is the most common cause of early failure.
Some points cannot be settled from a desk. The exact condition of the existing membrane, the moisture content of the concrete, the thickness of any screed, and whether the balcony edge has been properly upturned all need to be confirmed on the day. The technician also has to judge whether a crack is structural or only surface-level, and whether an old coating must be stripped before a new one is applied. These decisions shape the method and cost, so the site visit is where the final scope is agreed, and nothing should be promised before those readings are taken.
To help the technician prepare, the school should provide the floor plan, the roof and balcony layout, and any previous waterproofing records or warranties. Access times that avoid class hours, a clear route for materials, and a named contact for the school office all make the visit faster. Note any leaks seen after rain, the rooms or spaces below them, and when the problem was first noticed. Pricing references on this site are given per square metre or per metre of crack, such as liquid roof waterproofing at SAR 8–25 per m² or crack injection at SAR 40–120 per m, and the final figure depends on the measured area and the condition found on site.
For schools, the larger jobs are planned for weekends and holidays.
Signs worth paying attention to
The following signs are worth checking before they grow:
- A wrong fall towards the door threshold
- Water passing from the balcony to the floor below
- Damp under the light well
Where the problem usually comes from
- A common cause: incorrect falls.
- A common cause: a threshold without waterproofing.
- A blocked drain.
Tools and methods, and when we use them
| 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 |
| Moisture meter for ceilings and walls | Where water is entering now, from inside | Limits: measures the effect, not the water path |
| Roof, falls and drains survey | Ponding areas and the condition of the old layer | Limits: shows the condition, not the material alone |
How the work is done, step by step
- Checking the falls: Where water collects and where it should go.
- Details: Thresholds, drains and upstands.
- Waterproofing: The layer is applied and protected.
- Flood test: Tested before the finish goes on.
Facts and costs — Allith
| Item | Value | Source |
|---|---|---|
| District profile | The centre of Allith sits about 5 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Allith is about 1.2 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| Roads | Main roads in or near Allith: Al Laith Road, Amr Bin Al Aas Street | Kashf data (owner) |
| Bathroom waterproofing (per m²) | SAR 15–40 per m² | Owner price list (Allith) |
Common questions about floor & balcony waterproofing in Allith
What is the first step of floor & balcony waterproofing for schools?
We start with checking the falls (where water collects and where it should go), then details (thresholds, drains and upstands).
How much does floor & balcony waterproofing cost in Allith?
From our published price list: Bathroom waterproofing (per m²) SAR 15–40 per m². Quantities are confirmed at the inspection.
What do I get at the end?
The flood result and photos of the details, in a technical report that carries a verification code.
Mistakes that cost more
- Tiling a balcony without waterproofing
What you receive
You receive: the flood result and photos of the details, in a technical report with a verification code.
Practical notes for residents of Allith
- 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.
- Keep photos of the problem and of any earlier repairs — they help the technician compare before and after.
- 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 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