Look at the Vue

Thanks to fume free Hydrostop EU AH-25, the Vue cinema in Doncaster could stay open while its asphalt roof was refurbished.

Sometimes buildings just can’t close while roofing refurbishment takes place. Shutting down operations isn’t really an option for places such as schools, hospitals and businesses where continuing with day-to-day activity is necessary. One such example of this was the Vue cinema in Doncaster, which needed to stay open while work was carried out on a section of the roof.

As the cinema is a public space health and safety considerations were paramount. The 750m2 central cinema roof is located right above a stairwell, lift core and projection rooms, so it was too disruptive and noisy to take up and replace the existing asphalt.

The roof is also covered with mounted plant, equipment and trunking, so the two best options were a torch-applied membrane system or liquid waterproofing.

As the building is constantly in use, hot works weren’t an option from a health and safety perspective. Using a cold-applied liquid product instead had the added advantage of avoiding the need for any complex edge and penetration detailing.

However, with the cinema screens in operation only a few feet away from the work, there was always potential for fumes to enter the building through air conditioning intakes on the roof. As these units could not be shut down, it was vital that a solvent and fume free solution was used for the refurbishment.

SIG Design Technology recommended Hydrostop EU AH-25, a wet-on-wet cold applied liquid waterproofing system that contains no solvents or isocyanates, and also has a very low VOC content.

Installers like working with AH-25 because it goes down wet-on-wet in a single pass install. The first step for the Vue cinema project was to clean the roof. Once the surface was ready a base coat of AH-25 was applied, into which an 110gsm layer of polyester reinforcing fleece was embedded. The second coat of liquid can be applied immediately, saturating the reinforcement and completing the waterproofing. AH-25 is totally impervious to standing water, and as a single component liquid, it does not require a catalyst before use. The product also comes with a 25 year guarantee when installed by SIG’s DATAC accredited installers.

For Vue it was the perfect solution. They got a beautiful new roof and were able, literally in this case, to keep the show on the road while their customers were none the wiser.

Why not learn how to install Hydrostop EU AH-25 in a one-day course at SIG Design Technology’s Training Academy or become a DATAC accredited installer yourself? It means that when an organisation such as a school, hospital or cinema needs roofing work carried out, you can help them carry on as normal while you do the job.