Roof Slab Waterproofing Details

Unauthorized entry shall be restricted to the waterproofing areas.

Roof slab waterproofing details.

Waterproofing bituminous sheets applied in either single or multiple layers are one. One of the most critical details on remedial applications is the tie in detail between the existing waterproofing application. Of the most critical areas of roofs especially when the waterproofing system. This is one of the common causes of flat roof waterproofing failure.

Waterproofing bituminous sheets used in low slope roofs. The sealer is impermeable provided it is applied correctly and forms a waterproof membrane around the concrete preventing moisture from entering the concrete. Winkler one material cost may be higher than some liquid applied membranes however the labor cost to apply it is lowered due to the reduced time of application steps and the details treatment efficacy. On completion of waterproofing membrane and before undertaking any further activity it shall be tested by plugging the outlets and flooding 50mm above the highest point by hose and leaving flooded for twenty four hours before draining off.

Typical waterproofing details of foundations above the roof slab shall be followed as per approved shop drawing. Large amount of water vapour can evaporate from reinforced concrete or a wet screed. Being trapped between the reinforced concrete roof structure and membrane. Perimeter foundation insulation is required in colder climates to reduce the heat loss from a slab on grade to the below grade foundation wall.

Topical sealers can be made from acrylic epoxy and polyurethane based materials.