August 2018

Roofing Updates
For further info on all these roofing updates and more, visit www.total-contractor.co.uk
KLOBER SAILS THROUGH TEST
Klober has put its Uni-Click and Contract dry verges through a variety of tests to demonstrate how both comply with BS 8612.
BS 8612 Dry-fixed Ridge, Hip, Verge and Valley Systems for Slating and Tiling defines tests to determine mechanical resistance to
wind load and shows how specifiers should use data from these tests to verify whether a product is suitable or not, given the
wind exposure of the location under consideration.
The Standard also sets down a test for ridge-roll products to measure whether they can meet the profile of the roof tile at ridges and
hips without breaking or splitting. A third test checks whether roof verges shed the water away from the surface of the wall to avoid
staining and damp issues. Under the watchful eye of technicians at the company’s technical centre, both verge types were put through their paces. For the water
leakage test both verge types were laid on the rain-screening rig in accordance with the manufacturer’s laying instructions using Redland Mini Stonewold concrete
tiles at a batten gauge of 335mm (75mm headlap). They were tested in accordance with the standard, this being a pitch of 22° and a flow rate of 2l/min for a
period of 10 minutes. For the wind load test an upward force was exerted on the tile adjacent to the verge via a wire attached to the tile. The force is increased
slowly to replicate wind gusts and to test the mechanical fixing of the verge. In both cases the dry verge products easily performed to the satisfaction of the
Standard. In fact, in the mechanical resistance test, the tile adjacent to the verge snapped while the verge remained firmly fixed! www.klober.co.uk
A RETURN TO ROOFLIGHT ROOTS
To facilitate the growing demand for rooflights, Coxdome has enhanced its stock range of
off-the-shelf rooflights to permit speedy delivery within 24 hours if required to its
merchants network across the UK.
Coxdome has become one of the leading brands associated
with quality rooflight solutions. Manufactured in PVCu and glass
the systems have myriad opportunities to provide individual
rooflight and roof glazing architectural designs.
“Coxdome has been a popular choice amongst architects, specifiers and builders for many years due
to its reliability and availability,” said Jim Lowther, Head of Sales. “We felt that it was important to
expand the choice to our existing and prospective customers via our reliable supplier network so that
we could ensure the highest quality rooflights were easily available.” www.coxdome.co.uk
PRATER PASSES UNIVERSITY TEST
Prater is currently delivering a complete roofing package for the Centre Buildings of the
London School of Economics and Political Science (LSE).
Prater was appointed by Mace and the project is part of a £120m
redevelopment programme due for completion in April 2019.
Work is already underway and Prater’s scope of works includes installing inverted waterproofing
systems to all terraces and roof levels. In addition, a number of finishes including Moordale
Paving, and both green and brown roofing will help the building to achieve its requirement for a
clear, sustainable focus. As part of the roofing package, Prater will also provide a variety of
bespoke planter systems for a number of terrace levels. www.prater.co.uk
FULL RANGE ON NEW WEBSITE
The National Domelight Company (NDC) has launched a new website showcasing its extensive
range of smoke vents, making it even easier to find the right solution for your project.
NDC has launched a new website www.smokevent.co.uk
With 50 years of experience, the NDC team keeps up-to-date with the latest regulatory changes
to advise you on the most suitable solution for your development and ensure compliance. NDC’s
smoke vents – also referred to as ventilation rooflights or automatic opening vents (AOVs) – are
stocked in the UK for fast delivery. The range includes four NDC brands: Astroglaze, Solarglaze,
Stardome, and Thermodome, plus units supplied by Coxdome. www.smokevent.co.uk
58 TC AUGUST 2018