Floor & balcony waterproofing for schools in Dammam
In short: In Dammam (Dammam), 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. The centre of Dammam sits about 12 m above sea level (SRTM open elevation data). Published price: Bathroom waterproofing (per m²), SAR 15–40 per m²; anything else is quoted after the inspection.
Before we start: what we know about Dammam
The centre of Dammam sits about 12 m above sea level (SRTM open elevation data). Dammam is about 4.3 km from the sea coast (OpenStreetMap).
Team note on Dammam: 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..
Does a school's floor or balcony in Dammam really need waterproofing, and how would an owner know? Dammam sits about 12 m above sea level at its centre, and it is about 4.3 km from the sea coast. Those facts matter because a building close to the coast and in a low-lying area can face different moisture conditions from one further inland, so the surfaces that stay dry in a classroom block may not stay dry on an exposed balcony. The answer for a school owner is to look at the specific surfaces that take water and check them before choosing a system. Waterproofing is priced by the surface and by the type of work, so the first step is to identify which areas are affected and what kind of protection each one needs.
The inspection usually starts with a walk over the floors and balconies to note any staining, lifted tiles, hollow sounds underfoot, or damp patches on ceilings below. Cracks are measured and marked, since crack injection is priced per metre, with work quoted at SAR 40–120 per m. Flat roof areas and balconies are checked for ponding and drainage, and liquid roof waterproofing is typically priced at SAR 10–25 per m², while bitumen membrane sits at SAR 15–35 per m². Bathrooms in the school are inspected separately, because bathroom waterproofing is quoted at SAR 15–40 per m², and any water tanks on site are reviewed for internal coating at SAR 25–60 per m². Basements, if present, are assessed on their own, with basement waterproofing at SAR 50–150 per m². Each surface is recorded so the owner receives a clear list tied to the actual areas, not a single blanket figure.
Before the visit, the owner should gather the building plans, any previous repair records, and a list of rooms or balconies where leaks or damp have been noticed, with approximate dates. It helps to note where water appears after rain and whether any area has been retiled or repainted recently, since that can hide earlier problems. Access should be arranged for the classrooms, roof, bathrooms, and any tank or basement, and the school should confirm which areas are in use during the day so work can be planned around pupils. Having this information ready lets the inspection cover the right surfaces in one visit and makes it easier to compare the options that follow.
For schools, the larger jobs are planned for weekends and holidays.
Signs that call for floor & balcony waterproofing
The following signs are worth checking before they grow:
- Water passing from the balcony to the floor below
- A wrong fall towards the door threshold
- Damp under the light well
Causes we see in the field
- A threshold without waterproofing.
- Incorrect falls.
- A common cause: a blocked drain.
How we choose the tool in Dammam
| Tool | What it finds | When we use it in Dammam |
|---|---|---|
| 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
- 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.
Quick comparison: facts and costs in Dammam
| Item | Value | Source |
|---|---|---|
| District profile | Dammam is about 4.3 km from the sea coast (OpenStreetMap) | © OpenStreetMap contributors (ODbL) |
| District profile | The centre of Dammam sits about 12 m above sea level (SRTM open elevation data) | SRTM (NASA) open data |
| District profile | Team note on Dammam: 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 |
| Bathroom waterproofing (per m²) | SAR 15–40 per m² | Owner price list (Dammam) |
Questions from Dammam
How long does waterproofing take?
It depends on the area, the material type, and the surface condition. Residential roofs are usually completed within a few days, including preparation and testing.
Are the disinfectants used for sterilization safe for drinking water?
Yes, disinfectants specifically designed for drinking water tanks are used at specified concentrations, and the tank is rinsed thoroughly afterward to remove any residue. We recommend asking about the type of materials before starting.
Is it possible to carry out thermal insulation on an old roof?
Yes, it is possible after inspecting the roof, treating cracks, and removing damaged layers. The contractor determines after the site visit whether the roof needs additional preparation before the insulation is installed.
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 Dammam?
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.
What we advise against
- Tiling a balcony without waterproofing
What you get after the work
The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.
Planning the visit in Dammam
- 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 team
- Customer questions (reviewed)
- Owner price list for Dammam
- 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