36 PROJECT REPORT: HERITAGE & CONSERVATION; PROJECT REPORT: EDUCATION & RESEARCH FACILITIES
Sika Sarnafil explosive success for Royal Gunpowder Mills roof refurbishment
been given a new lease of life with a stunning and sympathetic roof refurbishment. Consisting of listed buildings, ancient
A
monuments and natural aspect features, the site is a well-loved attraction. A busy hub of activity, it attracts thousands of visitors every year, with exhibitions and a programme of hands-on activities for school groups. With previous roof coverings across the
site’s buildings close to derelict, a new roofing system was needed that would both guarantee a durable solution and fit with the aesthetic of the heritage buildings. To meet those needs, Sika Sarnafil G410-15EL FSA Lead Grey was specified alongside Sarnavap 1000E air and vapour control layer. The high-quality roofing system was
chosen after the project’s main contractors Courtenay Builders Limited were impressed with the results from similar Sika Sarnafil
historic and archaeological treasure, the Royal Gunpowder Mills heritage site in Waltham Abbey, Essex, has
projects. They also entrusted Contour Roofing with the specification and installation after seeing its award-winning track record with Sika Sarnafil. As a site once home to tonnes of explosives
and with visitors in throughout the refurbishment, the project proved challenging, requiring extensive attention to health and safety. A strict ban on naked flames and hot works meant that the plywood boards had to be primed immediately after installation and before
exposure to any wet weather. The specification therefore considered this and the original system, which would have needed a completely dry substrate, was switched to a loose laid polyethylene air and vapour control layer that was more equipped for a faster installation in the expected conditions. Further challenges were met due to the 45-degree pitch of the roof. Roof ladders had to be used to allow workers access to the complex angles and achieve a seamless finish, using Sarnafil membrane and bespoke Sarnametal flashings at abutments, changes of angle and ridge angles. Securing a 20-year Sarnafil guarantee, the
newly refurbished roofs have not only met the client’s need for a stunning aesthetic, but have also provided a durable weatherproof roofing system – upholding the heritage charity’s mission to conserve the site for the benefit of the general public.
01707 394444
gbr.sarnafil.sika.com
The All New Hybrid Plus2 Aircool® is Attracting Attention Fast and simple installation · Contemporary design · Versatile mounting options
Hybrid ventilation does not have to come in boxes. A division of Building Product Design Ltd
To find out more call 01732 850770 or
email
sales@passivent.com quoting Hybrid Plus2 or visit
www.passivent.com/hybridplus2
WWW.ARCHITECTSDATAFILE.CO.UK
ADF DECEMBER 2019
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84
