• Specialized Contracting
• 16 Aug

How Roof Waterproofing Is Applied

Waterproofing your roof is essential for protecting your building's interior from moisture and temperature fluctuations. It also helps maintain the warranty of your structure. Roof waterproofing prevents leaks, ensuring that moisture cannot penetrate through cracks or gaps. The process involves inspecting, cleaning, repairing, and applying a new layer of material to seal any vulnerable areas, safeguarding against future damage.

Traditional Waterproofing Methods

Laying Slates

This method uses a mortar mixture spread over the roof surface, followed by placing small slate pieces on top. After allowing it to dry, more mortar is applied, repeating until the entire roof is covered.

Tar and Gravel
Tar is used to seal joints and crevices, while gravel placed on top prevents water from seeping through the roof.

Cementitious Waterproofing

Cementitious waterproofing utilizes cement to seal the roof. This involves applying a waterproofing agent and sealing it with a concrete overlay. This method bonds well with the concrete surface, creating an impervious layer that prevents moisture from penetrating through cracks. It is suitable for both flat and sloped roofs, including those damaged by fire. Cementitious waterproofing is cost-effective, requiring minimal equipment and labor, though it can be challenging to remove if you decide to sell your home later.

Polymer and Elastomeric Waterproofing

Polymer Waterproofing
This two-part system involves a primer and a sealer, creating a barrier between the substrate and the top layer.

Elastomeric Waterproofing
Also a two-part system, elastomeric waterproofing includes an adhesive and a flexible membrane that seals joints. It can be cut to fit any space, making it adaptable around pipes and cables. When exposed to water, it expands and contracts, ensuring an effective seal.

Liquid Applied Membrane Waterproofing (LAM)

LAM is a popular and cost-effective waterproofing method. The liquid membrane is sprayed or brushed onto the underside of the roof deck, forming an impermeable layer as it dries. Suitable for various roof types, this method can last up to 30 years without maintenance. However, it requires skilled application to ensure complete coverage, especially in complex areas like valleys.

Bituminous Waterproofing

Bituminous waterproofing involves a tar-like substance mixed with asphalt that seals the roof to prevent water entry. It can be applied on the exterior or between rafters. Best suited for flat roofs, this method may crack over time and requires periodic repairs, but it remains a popular choice due to its low cost and ease of application.

Paint Waterproofing

Paint waterproofing involves applying a specialized coating directly on the roof deck and sealing it with a topcoat. Commonly used for asphalt shingles, clay tiles, and wood shake roofs, this method has a lifespan of about 10 years, necessitating reapplication.

Conclusion

Each waterproofing method has its advantages and disadvantages, so it’s essential to evaluate your specific needs. If you suspect leaks or require waterproofing services, consider consulting a professional waterproofing contractor in Dubai.

Top Waterproofing Contractors

As a leading contractor in metal roof waterproofing in Dubai, Themilate offers comprehensive solutions for various waterproofing challenges. Our services are designed for longevity while adhering to environmentally friendly standards. We prioritize understanding your needs through face-to-face consultations to ensure tailored solutions for your waterproofing requirements.