Applying a spray polyurethane membrane with a plural-component gun on a concrete roof

Spray Polyurethane Membrane: Hot-Applied, Seamless and Fast-Curing

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Table of Contents On large roofs, tanks and car-park decks, time is decisive; every day of downtime costs money. This is where a hot-applied spray polyurethane membrane stands out: two components leave the spray gun mixed and cure within seconds into a continuous, seamless rubbery layer that resists rain after a quarter of an hour. This article covers the datasheets ... Read More
Re-roofing over existing membrane with a liquid coating on old bitumen felt

Re-Roofing Over Existing Membrane: Waterproof Without Tearing Off

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Table of Contents When a roof starts leaking years after its membrane or tiles were laid, the owner’s first thought is usually a full tear-off and starting again. That means days of demolition, debris and noise, and a higher bill. In many cases the alternative is re-roofing over existing membrane: installing a new waterproofing system on top of the old ... Read More
Grey mineral-slated exposed roof membrane installed on a flat roof

Exposed Roof Membrane with Mineral Slates: Waterproofing Without a Screed

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Table of Contents In a conventional sheet system the membrane is buried under sand, screed and tiles to protect it from the sun. On many roofs nobody walks on, such as warehouses, plant rooms and sloped roofs, those heavy layers can be skipped by using an exposed roof membrane with a mineral-slated top surface. This article reviews INSUTECH Mineral and ... Read More
Swimming pool waterproofing with a cementitious coat inside an empty concrete pool

Swimming Pool Waterproofing: Cementitious Systems and Chlorine-Resistant Coatings

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Table of Contents A leaking pool does more than stain a ceiling: it means constant loss of treated water, corroding reinforcement and possibly damp in adjoining rooms. Swimming pool waterproofing therefore has to be designed as a complete system from day one, not just a coat of paint. Based on the datasheets, this article covers two main options: flexible cementitious ... Read More