Roof Rehabilitation & Roof Waterproofing Solutions UAE
Roof rehabilitation repairs an existing roof that leaks, ponds water or has a failed waterproofing layer, instead of replacing the whole build-up. TEXSA surveys the roof, identifies the cause of the failure, then repairs the substrate, corrects falls and details, and installs a new protective and waterproofing system suited to UAE exposure.
Overview
Roof rehabilitation is the process of repairing, upgrading, and restoring existing roof waterproofing systems that have deteriorated due to age, water leakage, ponding water, UV exposure, thermal movement, failed coatings, or membrane deterioration. Rather than replacing the entire roof, rehabilitation focuses on identifying the root cause of failure, repairing damaged areas, and installing a suitable waterproofing system to extend the service life of the roof and improve long-term performance.
Common roof problems
Process
- 01
Site inspection
Every rehabilitation begins with a documented site inspection: water-ingress mapping, core sampling to identify substrate condition, and assessment of existing membrane chemistry to inform compatibility of overlay systems.
- 02
Surface preparation
Surface preparation is the single largest determinant of long-term performance. We remove failed coatings and contaminants by diamond grinding, shot blasting, or vacuum-assisted scarifying, then verify substrate moisture, pH, and profile before priming.
- 03
Concrete and substrate repair
Spalled and delaminated concrete is removed and reinstated with EN 1504-compliant polymer-modified repair mortars. Exposed reinforcement is cleaned, passivated, and re-cover-checked. Substrate levels are corrected before the overlay membrane.
- 04
Joint, crack, and detail treatment
Construction joints, movement joints, and dormant cracks are detailed with reinforcement bands, sealants, and where required, polyurethane injection — establishing a continuous waterproof envelope before the main membrane is applied.
- 05
HVAC, drain, and penetration detailing
HVAC kerbs, drain bowls, parapet upstands, and pipe penetrations are detailed with reinforced corner bands and elastomeric flashings. Every penetration is treated as a discrete waterproofing detail with documented method.
- 06
Replacement waterproofing systems
Where existing membranes are beyond rehabilitation, we strip back to substrate and install replacement systems — bitumen membrane, liquid polyurethane, or polyurea — specified to the asset class, exposure, and service life requirements.
- 07
QA / QC and warranty
Every project is documented end-to-end: substrate logs, primer DFT, membrane DFT, adhesion pull-off testing, holiday detection, and flood testing where applicable. Project warranty is issued on handover with the full QA record.
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Roof Rehabilitation — frequently asked questions
Explore the full range
Waterproofing Systems
Advanced waterproofing systems engineered for UAE infrastructure, industrial, and commercial assets.
Injection & Repair Systems
Structural rehabilitation, crack injection, and leak sealing for demanding UAE environments.
Industrial & Commercial Flooring Systems
Durable flooring systems for industrial, commercial, sports, and heavy-duty environments.
Specify Roof Rehabilitation on your next project.
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