Roofing Updates For further info on all these updates and more, visit www.total-contractor.co.uk PERMAROOF UK EXPANDS ITS OFFERING PermaRoof UK has announced it is further increasing its range to include the RubberGutter EPDM SA system. The company says the time saving, self-adhered rubber waterproofing membrane is designed for guttering and valleys, and it has been launched in response to merchant demand for quicker to install, longer lasting solutions that can be offered at the trade counter. Understanding that applying adhesive on site can be time consuming, often needing additional specialist tools, and will not always leave the best aesthetic finish – PermaRoof UK has invested in supplying the RubberGutter EPDM to answer these concerns. To do this, the synthetic EPDM rubber waterproofing membrane features unique secure bond technology that ensures an edge to edge clean, uniform and strong adhesion. When applied in conjunction with guttering products to buildings, the company says it is proven to improve the longevity of the system as its high elasticity allows for expansions and contractions of metal gutters and concrete. The membrane is also designed to ensure no cracking or splitting takes place over time and has excellent resistance to UV exposure and extreme weather conditions. Sunny Lotay, National Commercial Manager at PermaRoof Commercial, said: “We’re pleased to be able to bring the RubberGutter EPDM to the market for our customers. One of the many benefits of the new system is that it is quick and easy to install. It has been developed to not require any special tools, making it an efficient system to work with for roofing installers. Additionally, it can be applied at any time of the year, even when conditions are below freezing, furthering its convenience to contractors on site.” www.permaroof.co.uk/ WELSH SLATE’S HISTORIC PROJECT One of London's most unique buildings is enjoying a new lease of life, thanks to Welsh Slate. The Great Hall and Library Buildings of The Honourable Society of Lincoln's Inn, an association of students, barristers and judges and one of the four Inns of Court, have over the past two years undergone an extensive programme of external conservation carried out by expert stone masons Capital Stone. The programme of work includes replacement of the Great Hall’s slate roof covering. Work is still ongoing, but the work to the Great Hall roof is complete, as is the striking of the temporary roof covering which brings the new roof into view. The Great Hall and Library Buildings were constructed from 1843 to 1845. The Great Hall roof was originally covered with lead but was recovered in 1868 with slate. From 1871 to 1873 the Library was extended eastwards by three bays. The building is an important example of 19th Century Gothic Revival architecture and has been listed Grade II* since 1951. After 154 years, the slates on the roof of the Great Hall required replacing to protect the interior, including a striking fresco and beautifully worked oak. The slates were suffering from surface delamination and a large proportion had slipped due to nail rot, requiring tingles to hold them in place. The existing slates were found to originate from both the Ordovician and Cambrian deposits of North Wales – the former predominately on the eastern elevation and the latter on the western. The large Ordovician slates, typically 850mm long and between 350mm and 500mm wide (and laid to a fixed gauge of approximately 350mm which equates to a head lap of approximately 100mm), originated from what is now Welsh Slate’s Ffestiniog quarry, which is currently mothballed, while the other quarries producing these no longer operate. The Cambrian slates from the Llanberis region, as well as Bethesda where Welsh Slate’s main quarry is based, were even larger, at 850mm long and wider than 450mm, laid to the same gauge. Both slate types were fixed to timber battens on open timber rafters, with the underside torched Image courtesy of Casey Wickers, trainee quantity surveyor with Capital Stone Renovation. with horsehair and lime plaster. These were replaced for the closest Welsh slate match – Welsh Slate’s County-grade Penrhyn Heather Blues, at 800mm long, widths of between 400mm and 550mm, and a 350mm gauge and 100mm head lap. These are guaranteed for 100 years, with a useful life of 150 years. While the roof is generally simple in form, with two large slopes, its substantial size at circa 800m² meant the work took considerable time to complete. To allow for more than a dozen dormers the Welsh Slate had to be cut and fitted to size with double copper clout nails. The thickest slates were used on the eaves, diminishing towards the ridge to maintain the original visual finish. They were also holed from the rear to provide a slight countersink to the face. www.welshslate.com 34 TC JUNE <strong>2022</strong>
Kytun Aluminium Dry Roofing Solutions • Will Not Discolour • Will Not Crack • Maintenance Free • 20 Year Guarantee • Fully Recyclable Dry Valle alley Trough Continuous Slate Dry Verge ALU RANGE WARRANTY 30 YEAR A DUR LUMINIUM ABILITY WARRANTY 20 YEAR A L W CUMINIUM ARRANT OLOUR Y WILL NOT WARP WILL NOT DISCOLOUR BS 8612 BS 5534 www.kytun.com Continuous Tile Dry Verge
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