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11 July 2012

Redhills Primary School in Exeter is safe from leaks and more energy efficient thanks to the installation of a warm roof and waterproofing system from Kemper System.

The existing three-layer felt roof on the 30+ year old building was widely failing and needed to be replaced so Devon County Council’s appointed consultant, NPS, specified Kemper System’s solvent-free 2K-PUR cold liquid applied system along with the company’s Kempertherm PIR insulation board.

Main contractor, Skinner Construction Ltd, appointed Stormforce Roofing to install the roofing system, in a project that was carried out both during the school holiday and within term time.
Andrew Sturgess from Skinner Construction Ltd explains: “Obviously having children on site while the work was on-going presented some health and safety challenges. The Kemperol 2K-PUR system was the ideal choice in this regard: as a cold-applied wet-on-wet system it is quick to install and avoids the need for any hot works on site. What’s more, the choice of the solvent-free product which is based on a castor oil formulation means that there are no unpleasant odours during or after the project, allowing staff and pupils to get on with school life on a business-as-usual footing.”

Stormforce installed the new roofing system on top of the old substrate with minimal preparation, effectively recycling it as a vapour control layer. The insulation board was then cut to shape and laid directly onto the existing roof before installation of the 2K-PUR system in a single process. The result is a durable yet flexible waterproof membrane which will not delaminate and will keep Redhills’ children dry for at least the next 25 years.

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