Decothane Application

Bituminous felt has many disadvantages in both application and performance. It is typically applied using naked flame and heating equipment, such as boilers, which pose a significant fire risk and increase insurance premiums.

Decothane is a cold fluid applied by brush, roller or airless spray. Formulated to overcome the problems associated with traditional roofing materials, it is safer, cleaner and quicker to use. There is no need for pots of molten bitumen, naked flame or any other heat source, and because it is applied directly over the existing substrate, disruption is minimal.

Decothane generally involves a three-stage process, starting with priming if the substrate is metal or requires enhanced adhesion. Protrusions and other detailed areas are primed first. If the rest of the roof requires priming, the primer is poured onto the substrate and spread with a roller.

By comparison, bituminous roofing felt is laid using hot techniques. Gas canisters and roof flame torches are needed on the roof, and molten bitumen is pre-heated in a boiler to bond the strips of felt, but the high application temperature poses a health and safety risk. The bitumen is poured onto the roof and spread using a roller, but it is messy with a heavy odour and can emit potentially dangerous fumes. Many major companies have banned the use of hot-applied felt altogether.>>>>>>>>>>>Download the Video Demonstation

With Decothane, parapets, upstands and detailed areas are coated first. It easily follows the contours of even the most complex roof detail. Reemat glass fibre matting is then applied. Easily torn by hand and laid into the coated area, Reemat provides additional strength and durability. The main section of the roof is coated with Decothane, before Reemat matting is applied and embedded into the coating. Decothane systems are available with life spans of at least 10, 15, 20 or even 25 years before first maintenance and are approved by the British Board of Agrément. They can be applied in poor weather conditions, curing at low temperatures even under ponded water.

When bituminous felt is applied, roof flame torches are used. Clearly, naked flame on a roof presents a risk to operatives applying the felt and those working within and around the underlying building. There have been many instances of fire breaking out on roofs where hot-applied felt is being laid. On the other hand, Decothane is free from risk, due to its cold fluid application. When felt is laid, the joints between the sheets, or around detail work, are its weakest point, leading to water penetration.

When a final top-coat of Decothane is applied, it provides a seamless, watertight membrane free from leak-inducing joints or seams. Various colours are available, including solar reflective white, which reduces solar heat gain.

Decothane is highly durable, vapour permeable, elastomeric and UV stable. It will not embrittle with age or crack when subject to thermal and structural movement. It provides years of cost-effective weatherproof protection, setting the industry standard for reliability.

The perfect solution to meet your requirements.