How To Waterproof Concrete Rooftop

Apply the finish system you have selected to the wall according to the manufacturer s directions.

How to waterproof concrete rooftop. Allow the vapor barrier to dry before you add a second coat. Cleaning priming treatment of details main coating application and inspection. Always wear eye protection and waterproof gloves when working with polyurethane sealant and work in a well ventilated area. Deciding which walls to waterproof and which ones to forgo can save you.

Waterproofing the concrete slab waterproofing waterproofingconcrete waterproofingslab waterproofing paint waterproofing wood waterproofing membrane wat. Apply a suitable. In general a minimum fall of 1 in 80 will help to prevent ponding of water. Steps to waterproof a roof a typical application of liquid applied roof membranes consists five main steps which should all be treated with utmost importance following the product manufacturer instructions.

Overlap the previous line every time you start a new one. When waterproofing concrete a topical sealer is applied to the surface of the concrete. Sprinkle the cleaner etcher on the surface and leave it on for 10 to 20 minutes. Pour your chosen vapor barrier into a paint sprayer after the primer is dry and liberally spray an even coat onto the concrete roof.

Work systematically from one end to the other spraying in lines. Scrub the surface vigorously with a long handled scrub brush. Pour the cleaner etcher into a large watering can. Make sure the concrete is completely dry.

Know which walls to apply waterproofing to. This is one of the common causes of flat roof waterproofing failure. During construction precautions must be taken to prevent excessive moisture from being trapped between the reinforced concrete roof structure and membrane. The sealer is impermeable provided it is applied correctly and forms a waterproof membrane around the concrete preventing moisture from entering the concrete.

Would cause a breakdown on the roof surface.