Waterproofing Old Concrete Roof

This is one of the common causes of flat roof waterproofing failure.

Waterproofing old concrete roof.

When estimating the cost of waterproofing a roof the building owner or property manager must take in consideration that material cost and labor cost are both contingent on this selection. 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. When waterproofing concrete a topical sealer is applied to the surface of the concrete.

A gallon covers between 50 70 square feet per coat and two coats should be used to get the best result. Topical sealers can be made from acrylic epoxy and polyurethane based materials. The cost to waterproof a flat roof depends on the choice of liquid applied roof system. Liquid rubber can be used over any flat roof covering even concrete cement and asphalt.

Ames blue max is a special blend of adhesive high strength elastomeric liquid rubber. Allow the vapor barrier to dry before you add a second coat. Discover how to protect your home with the latest thermal materials able to reduce heat intake by 90 the resin and membrane centre. Findlay evans waterproofing team provide experience for waterproofing membrane applications.

How to apply liquid rubber. Once the waterproofing membrane is laid drying out of the structural slab will mostly take place from the underside of the deck. The sealer is impermeable provided it is applied correctly and forms a waterproof membrane around the concrete preventing moisture from entering the concrete. This is an unusual situation but there are homes with cast in place concrete roof systems and typically roofing cement and fiber reinforced roll roofing is applied to the roof to prevent water intrusion.

Apply a suitable roof sealer to your roof if you have a cast in place concrete roof. To achieve a perfect finish adding some liquid rubber optional extras before you start can help make your waterproofing even more durable. Recommended for use on different surfaces including roofs polyurethane foam wood and concrete the jetcoat cool king elastomeric acrylic coating provides a fortified coating that keeps promises 5 years protection for your concrete surface. Overlap the previous line every time you start a new one.

It is a new impenetrable rubber technology for waterproofing in extreme wet situations such as below grade foundations basement walls and a base coat for certain roof types. Large amount of water vapour can evaporate from reinforced concrete or a wet screed.