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Budget around R180 to R350 per m² for a liquid membrane and R250 to R450 per m² for torch-on in Bryanston, with materials included. The price climbs if old waterproofing has to be stripped or the screed needs falls built in. Ask for the labour, materials and guarantee period on the quote.

Yes. Mature Bryanston trees drop leaves that block outlets and gutters, so water ponds and works into weak joints, and overhanging branches can scrape membranes in storms. Keeping outlets clear and trimming branches back is cheap protection for an expensive system.

On a flat roof in strong sun, usually yes. The reflective layer protects the membrane from UV, which is what makes bitumen go brittle, and it can noticeably cool the room below. It needs recoating every few years, so ask what the maintenance schedule looks like.

Not always. A sound old layer can sometimes be cleaned, primed and overlaid, which saves time and disposal costs. If it is blistered, lifting or trapping moisture, it must come off, or the new system will fail with it. Ask the specialist to explain which applies to your roof.