Waterproofing Works at Butabika Residential House

TETRABUILD Services Limited was contracted to undertake waterproofing works to a leaking roof slab and rising damp works to vast sections of the house.

The waterproofing works were undertaken using the APP Torch On membrane primed with a bituminous coating. The rising damp issues were treated using a combination of Dryzone cream (chemical DPC), Bituminous damp proofing (Insucoat) and Xypex waterproofing products (Concentrate and Admix).  The Insucoat was applied to brick wall surfaces while block walls and concrete columns were treated with Xypex concentrate. All repair mortars and plastered surfaces were treated with Xypex Admix (Waterproofing chemical) added to mortar.

Poor structural details were corrected and proper drainage design provided on the roof slab.

Structural defects included; puncture through the slab at bolt holes for antenna system, hollow cylindrical masonry wall that would collect and retain water during rain, poor slope for drainage, blocked single drain outlet from silt and leaves and this outlet was only 2inch dia.