Floor & balcony waterproofing for rest houses & farms in Allith

Prepared by the technical team · editorial review · last updated 13 November 2026 · Sources

Before we start: what we know about 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 it lies roughly 1.2 km from the sea coast, so the first thing a technician checks on a rest house or farm floor or balcony is how water moves across the surface and into the slab. Because the town is close to the coast, salt-laden air and damp ground are common, and a membrane that looks sound can still fail if the edges and drainage falls are wrong. Start by walking the slab with a level and noting any low spots where water would pool, then check the balcony upstands, door thresholds and drain outlets for cracks or gaps. Tap the surface to find hollow areas, and mark every crack so its length can be recorded before any work begins.

The following points are left to the site visit, because they cannot be judged from a distance. The technician needs to see the actual substrate condition, whether the old finish is lifting, the age and type of any existing membrane, and whether moisture is rising from below or coming in from above. The exact area to be treated, the number of metres of cracking to inject, and whether the work sits near a water tank or a bathroom all change the method. Access, the timing of use by guests or farm staff, and any tiles or fittings that must be protected also belong to the visit, as these decide how the job is staged.

To help the technician prepare, note that options are priced for each unit of work, so a clear measurement set makes a quote easier to follow. Floor and roof options run from liquid roof waterproofing at SAR 8–25 per m² and bitumen membrane at SAR 15–35 per m², through spray foam at SAR 20–45 per m² and epoxy coating at SAR 35–90 per m², while crack injection costs SAR 40–120 per metre. Where a balcony or roof is insulated, XPS boards at SAR 12–30 per m² may be part of the plan. Bring the area sketch, photographs of the worst spots and a note of any leaks seen after rain, and mention whether a tank is involved, since tank internal coating is priced at SAR 25–60 per m².

Rest houses and farms often have long buried lines, tanks and irrigation that need separate tests.

When do you need floor & balcony waterproofing?

These are the signs most often linked to floor & balcony waterproofing:

• 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

• Incorrect falls.
• A common cause: a threshold without waterproofing.
• A common cause: a blocked drain.

Tools we use in Allith

How the work is done, step by step

1. Checking the falls: Where water collects and where it should go.
2. Details: Thresholds, drains and upstands.
3. Waterproofing: The layer is applied and protected.
4. Flood test: Tested before the finish goes on.

Facts and costs — Allith

Short answers for Allith

Mistakes that cost more

• Tiling a balcony without waterproofing

What you receive

The written output: the flood result and photos of the details. The report is numbered and can be checked with its verification code.