Terraces are directly exposed to rain, snow, sunlight and temperature changes. Inadequate waterproofing can cause serious damage to spaces below, so terrace waterproofing should be carefully planned in both new construction and refurbishment projects.
If rainwater is not properly drained or penetrates the waterproofing layer, it can reach reinforced concrete elements and cause staining, dampness, mould, finish deterioration and insulation problems.
Cracks, voids and sharp points should be corrected before membrane installation.
Water should be directed towards drains. Poor falls can cause ponding and unnecessary stress on the system.
A suitable İzopak bituminous membrane should be installed according to technical instructions, with properly sealed overlaps and joints.
Parapets, drains, pipe penetrations and door thresholds require special attention because many terrace waterproofing failures originate at these points.
The intended use of the terrace, expected traffic and protective finishing layers should all be considered.
Successful terrace waterproofing combines good substrate preparation, correct falls, the right membrane, proper detailing and professional workmanship.
