Thanks to recent work from BMI UK & Ireland and its BMI Redland and BMI Icopal products, Romilly Primary School is now set up for the future.
Built in 1893, the school is in an exposed position upon a hill overlooking the sea, meaning the existing roof had been damaged by high winds and the ridge mortar had degraded over time. Due to the susceptibility of the roof, thieves had stripped most of the lead from the roof details, so the roof not only leaked, but it also threatened the safety of the children in the playground beneath.
However, this wasn’t the only complex thing about the roof – it incorporates many hips and valleys and also has a 250m2 flat roof at its centre. Therefore, there was also the issue of replacing the flat roof area in the centre of the school.
The requirements for the new roof were to be secure, look like the existing roof, be low maintenance, resistant to theft and address environmental issues. The roof should also be quick to install so it could be fixed during the school holidays, eliminating potential disruption to the schools 700 pupils. Consequently, Paul Hynam, the council’s construction consultant, chose BMI UK & Ireland and their BMI Redland and BMI Icopal products for the job.
Paul explains: “Using their SpecMaster service gives you a 15-year guarantee complete with the design and on-site supervision – so you know that the roof has gone on correctly. In effect, you can forget about the roof and maintenance for 15 years. BMI Redland’s Cambrian Slate also meets our environmental criteria – it’s recycled – and it’s Welsh”.
“Using BMI’s pitched and flat roofing products together gives confidence that both parts of the roof integrate – due to the collaborative details – and the result meets the required performance and reliability and is aesthetically pleasing. As Redland and Icopal are now one company they are able to take full responsibility for the design of construction details to ensure that they worked together.”
Another benefit of using pitched and flat solutions together from BMI, is that it ensured there would be no issue where the two systems meet.
For the pitched roof covering, BMI Redland Cambrian Slate was specified. An interlocking slate with three fixings, Cambrian works well in exposed situations and is made from recycled waste slate in nearby Merthyr Tydfil. To reduce maintenance, the slates were installed using a dry system, with fixings on the ridge and hip system to imitate the previous roof.
Because the school had a vaulted ceiling construction within it, venting was an issue at eaves level so BMI 4.5k ThruVent Tiles were deployed, rather than standard eaves vents.
The flat roof covering chosen was BMI Icopal Universal® – a 3.2mm single ply covering that is UV resistant and tough but also light and malleable, making it ideal for detailed roofing features. To boost thermal performance, BMI Area Technical Manager specified Thermazone Roofboard Insulation, which was laid on the existing PUR/ PIR insulation and employed the existing vapour control layer as a vapour check. To deal with the potentially problematic interface between the pitched and flat roofs, it was specified that the waterproofing was taken under the slates and up to the top of the eaves batten – a detail monitored during installation.
Vale of Glamorgan Council and Romilly Primary School now have the peace of mind of knowing that both the pitched roof and flat roofs are guaranteed or warrantied under the schemes provided by BMI UK & Ireland when roofs are designed and installed to its specifications.
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