Fahison
Incomplete Waterproofing at Column Necks
High- Cause:
- Difficult areas neglected.
- Impact:
- Moisture reaching the rebar and rusting it over time.
Stage 3: Waterproofing WorksFootings Waterproofing
Footings Waterproofing
Before Backfilling
Footings waterproofing protects the concrete and rebar from soil moisture and salts. After backfilling you can neither see it nor fix it, so we take handover once, before backfilling.
From 700 AED
1Handover Before Backfilling
- Specialised Engineers
- Photo Report
- All Emirates
Waterproofing ChecksIllustration
Hidden after backfillingProtection layer
What Is Footings Waterproofing?
Footings waterproofing is a layer applied to the footings and column necks below ground, preventing soil moisture and salts from reaching the concrete and rebar. The footings waterproofing inspection is an engineering visit before backfilling, in which our engineers check that the waterproofing covers all surfaces and is applied correctly.
The inspection matters because the waterproofing is buried under the soil immediately after it is applied. Any gap or tear lets moisture and salts reach the rebar, which rusts over the years and weakens the footings, and repairing it later requires excavation.
Handover of Footing Waterproofing
We inspect the waterproofing once, after it is applied and before backfilling.
Single Inspection
Book This Inspection
Footings Waterproofing Handover
When: After the waterproofing and protection layer are applied, and before backfilling.
The last chance to see the waterproofing before the soil covers it. We check that it fully covers the footings and column necks, with no gaps or tears.
Key Items We Inspect
Surface Preparation
Concrete clean and dry before waterproofing.
Coverage
Every face of the footing and column neck covered.
Laps
Lap lengths between rolls or layers.
Corners
Corners and edges detailed without gaps.
Tears and Blisters
Waterproofing free of holes and blistering.
Protection Layer
In place before backfilling to protect the waterproofing.
Most Common Problems at This Stage
Insufficient Laps
High- Cause:
- Saving on materials or rushing.
- Impact:
- Moisture seeping through the joints.
Backfilling Without Protection
High- Cause:
- Protection layer skipped.
- Impact:
- Waterproofing torn by gravel during backfilling.
Equipment We Use
From the Fahison equipment featured on our home page.
Thickness Gauge
Tips Before the Inspection
To help you get more out of the visit.
Do
- Request the handover before backfilling starts.
- Make sure the contractor has applied the protection layer.
- Have the required waterproofing specifications ready if available.
Avoid
- Backfilling before the waterproofing is accepted.
- Accepting waterproofing on damp or dirty concrete.
- Allowing people to walk on the waterproofing or throw materials onto it.
Frequently Asked Questions
Common questions about Footings Waterproofing.
Why does footings waterproofing matter?
Because soil contains moisture and salts that attack concrete and rebar. The waterproofing protects them, and any gap in it causes the rebar to rust over the years.
When should I request the handover?
After the waterproofing and protection layer are complete, and immediately before backfilling.
How much does a footings waterproofing inspection cost?
From AED 700.
Inspections in the Same Stage
Waterproofing & Insulation.
Waterproofing Done?
Book the handover before backfilling, and we will arrange a visit time with you.