What to specify: Roofing

Roof membranes
Approximately 3,000m² of Sika-Trocal S Membrane has been supplied to a series of roofs on a new 25,000ft² Waitrose supermarket. Built in the centre of Dorking, the project included the design and construction of a new two-storey branch with underground split-level car park. Laid over the insulation onto the deep profile metal deck, the Sika-Trocal Type S membrane was fastened using Sika-Trocal’s laminated metal disc system. The company claims the Trocal Type S membrane was used as it offers exceptional waterproofing durability and a simple installation process, saving time on site, which was key for this project.
Sika
www.sika.com

Waterproofing membrane
UltraPly TPO (thermoplastic polyolefin) waterproofing membrane has been supplied by Firestone Building Products to protect the roof of a non-denominational “reception building” at GreenAcres Woodland Burials site in Rainford, Merseyside. The UltraPly membrane was laid onto the building’s insulated roof and adhered to the substrate. The company says their product was chosen as the extensive use of wood in the building’s construction demanded a roofing solution with flame-free installation, and the TPO system offers many environmental benefits.
Firestone Building Products
www.firestonebpe.co.uk

PV roof tiles
Romag has supplied integrated PV roof tiles as part of the £12m Park Dale housing development in Castleford, West Yorkshire. Over 90 homes have been built for social and intermediate rent to comply with Level 6 of the Code for Sustainable Homes. PV designer and installer Beco commissioned Romag to produce the 562mm x 1,247mm panels to produce more than 83W of power. The PV technology has been designed to integrate with regular slate tiles to form a central feature on the south-facing roof of each of the two, three and four-bedroomed houses on the development.
Romag
www.romag.co.uk

Slates
Cembrit has provided its Jutland (smooth) and Zeeland (textured) fibre cement slates for a nature-inspired housing development in the seaside town of Weymouth. Poole-based building contractor F.H.Cummings worked with roofing specialist Weatherbury Roofing on this project. Having installed Cembrit slates in the past, the roofer specified Jutland and Zeeland fibre cement slates for the new build properties. The company claims the slates were chosen as they come in a variety of surface textures, which allows the contactor to choose a slate for each design.
Cembrit
www.cembrit.co.uk

Clay tiles
Redland has developed the Clay Universal Angle Ridge and Hip Tiles. These new ridges and hips are the clay equivalent of the Universal Angle Ridge and Hip tiles manufactured from concrete. The new ridge and hip tiles can be used with all Redland dry fix ridge and hip systems, including DryVent Ridge, Rapid Vented Ridge, Dry Hip, Rapid Hip and Uni-Vent Rapid Ridge/Hip. The company says the Clay Universal Angle Ridge and Hip Tiles are ideal for both the new build and renovation sectors across the country but are expected to be particularly popular in the private renovation sector where similar tiles are in need of replacement.
Redland
www.monier.co.uk

Composite roof panel
Eurobond has launched Roofspan, a non-combustible stone wool core, trapezoidal composite roof panel. The Eurobond NRG option is available across the Roofspan range and is particularly suitable for buildings where the underside of the roof is exposed. It uses a special internal steel face that maximises daylight and reduces the requirement for artificial lighting, and the company says, as a result, there will be lower light energy bills for the life of the building, a reduction in the carbon footprint and a positive contribution to material credits in a BREEAM assessment.
Eurobond
www.eurobond.co.uk