Solvent-free and odourless liquid waterproofing solution from Kemper System is protecting a popular East London church.
Roofing contractor, Capital Roofing Co Ltd of Blackheath in Greenwich, installed the manufacturer’s Stratex Warm Roof system and Kemperol 2K-PUR liquid waterproofing solution.
The Calvary Charismatic Baptists Church in Poplar, built in 1951, was suffering severe water ingress due to the failure of the existing asphalt waterproofing and glass skylights.
The initial single-ply specification was changed to Kemperol 2K-PUR by architects, A&RME, to provide a liquid waterproofing solution capable of addressing the complex design of the building with its concrete gutters and columns and numerous round rooflights.
The Stratex Warm Roof system comprises Kempertherm insulation and Kemperol 2K-PUR cold applied liquid waterproofing membrane and is quick and simple to apply.
The installation involved the removal of the timber structure and felt layers to reveal the 40 original circular skylights.
A primer and vapour control layer was applied, followed by a hard-top insulation board over the whole roof area. Insulation was also installed to the upstands of the beams and walls, and a cut to falls scheme was laid over the whole roof area to reroute the drainage into the existing side concrete gutters.
The Kemperol 2K-PUR liquid waterproofing system was installed on the flat roof area, enabling the membrane to be installed seamlessly around the skylights and around the concrete upstands.
In addition, an aluminium trim was then fixed to cover the insulation and the Kemperol 2K-PUR system at all the abutments.
Chris Shulver at Capital Roofing Co Ltd comments: “We have installed Kemperol many times before and its versatility made it the ideal choice. A temporary roof had to be erected prior to installation of the system to help keep the building as watertight as possible. Thanks to Kemperol’s quick and easy application, we could tackle the high level of detailing required on site with ease.
“It also decreased the time required for the temporary roof because of the single, wet-on-wet application process that doesn’t require the base coat to cute before subsequent site visits and further coatings are applied, unlike wet-on-dry systems.”
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KEMPER SYSTEM LTD
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Tel: 01925 445532