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Movers and Makers

The Trussed Rafter Association and Paramount Safety Solutions have released a new guide on safe installation of roof trusses on new homes of masonry construction. The guide is aimed to help reduce on-site risks to builders working at height. It discusses the three main sources of injuries and fatalities, describes the specific construction skills of installing roof trusses, and advises readers on preparing and installing roof trusses safely. How to Safely Install Roof Trusses is available as a free download from the website at: tra.org.uk

The online version of the Robust Details handbook has been updated this year for the fifth time. It includes the introduction of a new masonry wall, a new room-in-the-roof system and the introduction of a generic spandrel panel. The update also contains additional options on the resilient layer for E-FC-15 and expanded polystyrene added as an alternative insulation layer to E-WT-2 and E-FT-1 flanking walls. The up-to-date version of the Robust Details handbook can be downloaded for free from:

Natural slate manufacturer Cupa Pizarras celebrates 125 years this year. The firm produces its slate in its own quarries and warehouses, and every tile can be traced back to source by a unique barcode, ensuring 100% traceability. Cupa Pizarras slates have been used in projects such as Tokyo Central railway station, the Edificio Metrópolis in Madrid and Tobermory Church on the Isle of Mull in Scotland.

Roofing underlays

Roofing underlays from DuPont were specified for a slate roof extension in the historic Jamaica Inn. The roof needed to match the heritage architecture of the inn’s 1750s stone structure. The project used 225m2 of DuPont Tyvek Supro, a naturally vapour-open, windproof and watertight building membrane, as the underlay. The membrane meets all the requirements of ºÚ¶´ÉçÇø Regulations Parts L and C and standard BS 5534:2014, in all zones, altitudes and conditions.

DuPont

Standing-seam roofing and cladding system

The SSR2 standing-seam roofing and cladding system from Catnic provided a bespoke design solution for a porch detail installed across 150 homes at a housing development for Barratt Homes and David Wilson Homes. The self-supporting canopy is made of a 40mm x 40mm steel box support, which is bolted to the window unit and supports gallow brackets. This has been wrapped in 18mm plyboard with the Catnic SSR2 fitted on to it. The system meets the legislation for load-bearing for wind speed in accordance with BS EN 1991-4, and weather tightness in accordance with BS 5534 Parts 1 and 2.

Catnip

Cold liquid-applied waterproofing membrane

Kemper System has provided its Kemperol V210 cold liquid-applied waterproofing membrane for the upgrade development at the University of Huddersfield. The product was chosen because the project required a practical, durable solution and the specifier had previous experience using it. Green roofs were specified for three sections of the building, in total covering an area of 4,500m2. The Kemperol V210 waterproofing membrane was installed first, followed by the insulation, the blue roof drainage reservoir and then the growing medium.

Kemper System

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Walkable large-span glass roof

Walkable large-span glass roofing from Wrightstyle has been specified for the renovation of 270,000ft2 of office space at the Financial Times newspaper. The structurally glazed rooflight has been completed using Wrightstyle’s SR60140-2 and SR60140-4 profiles for the rafters and purlins. It underwent a TN67 test, where weights are dropped on to the glass to ensure the safety of anyone walking on it.

Wrightstyle

Flush fixed rooflights

Glazing Vision’s Flushglaze fixed rooflights were used to convert a heritage-listed farm barn into a contemporary home. The ceiling was 8m high and had an exposed wooden gable structure. The rooflights were precision-engineered and installed into the existing roof apertures. The Glazing Vision Flushglaze fixed rooflights are tested and certified by the British Board of Agrément to ensure they provide the required thermal performance, weather resistance and structural integrity.

Glazing Vision

Tiled conservatory roof system

Eurocell has expanded its Equinox tiled conservatory roof system range with the addition of SlateSkin.The new system allows the roof pitch to be set anywhere from 5° to 35° and, it meets the requirements of BS 476 Part 3:2004 for the external fire performance of roofs. The SlateSkin sheets are pre-cut to size and numbered for easy identification to save time during installation.

Eurocell

Triple-glazed rooflights

EOS Rooflights has expanded its triple-glazed modular rooflight systems to meet demand for larger rooflights and ventilation. The company now offers an upgraded triple-glazed version, with all the same benefits as the original model but with a system U-value of just 0.65W/m2k. Both models, the original and the upgraded one, feature a 32mm double-glazed unit comprising an outer, 6mm clear toughened pane, a 6mm krypton-filled cavity, a 4mm premium toughened pane, a 8mm krypton-filled cavity and an internal 8.76mm laminated premium pane.

EOS Rooflights