Waterproofing Of Reinforced Concrete Flat Roof

When waterproofing concrete a topical sealer is applied to the surface of the concrete.

Waterproofing of reinforced concrete flat roof.

A 10 to 15 cm thick slab of reinforced concrete with a thin 2 to 5 cm thick layer of cement on the top. Proper design of falls in reinforced concrete flat roofs is most important in creating flow paths to suitable discharge points. Coating a flat roof does not always means that the roof will become waterproofed. This cement layer is known as a screed and contrary to popular belief its purpose is not to waterproof the roof.

Pour your chosen vapor barrier into a paint sprayer after the primer is dry and liberally spray an even coat onto the concrete roof. Repair any cracks or honey combs with prema crack fill to get an even workable surface mix the guard and apply with a brush and immediately. Large amount of water vapour can evaporate from reinforced concrete or a wet screed. Work systematically from one end to the other spraying in lines.

Cross ventilation beneath the deck is usually quite. Topical sealers can be made from acrylic epoxy and polyurethane based materials. During construction precautions must be taken to prevent excessive moisture from being trapped between the reinforced concrete roof structure and membrane. The method has been described below.

As the roof is constantly exposed to direct. Due to the very high resistance of the polyurethane waterproofing liquid membrane for flat roofs isoflex pu 500 in permanent contact with water isoflex pu 500 offers full waterproofing and protection of the flat roof even in the case that water has penetrated the layer of tiles being trapped between the tiles and the waterproofing layer. Our roof waterproofing system provides one of the most cost effective methods for making a new or existing reinforced concrete r c flat roof waterproof. When correctly installed and maintained these roofs will have a longer lifespan which can then save you roof replacement costs.

Allow the vapor barrier to dry before you add a second coat. The sealer is impermeable provided it is applied correctly and forms a waterproof membrane around the concrete preventing moisture from entering the concrete. Some of our roof waterproofing methods include. This is one of the common causes of flat roof waterproofing failure.

Next it is important to select the appropriate waterproofing membrane. Remove the existing water proofing treatment whether brick bat coba or bitumen felt to expose the sound rcc surface. Many coatings have only the function to protect the existing roof membrane from the degrading action of uv rays exposure prolonging its life. Overlap the previous line every time you start a new one.

Most concrete roofs follow a similar type of construction.