Aiming to set a benchmark for the future of sustainable living in Scotland, CARSLISLE® Construction Materials walks through a St Andrews West development that combines contemporary styling and high-quality specification and made the most of the durable RESITRIX® roofing system
The phase 2 project, comprising 16 houses, 8 ‘Fisher Flats’ and 38 apartments, required a waterproofing system for the flat roof areas that aligns with the sustainability goals and aesthetics of the project, while delivering robust protection against the challenging east coast weather. Roofing contractor, Site Roofing, proposed the RESITRIX® bitumen backed EPDM system from CARLISLE®.
A seamless solution
Site Roofing are very experienced in installing RESITRIX® for prestigious projects in exposed climate conditions, and were confident in recommending the unique hybrid single ply system for the project. The waterproofing membrane combines the advantages of EPDM’s permanent elasticity with the durability of high-quality polymer-modified bitumen in a single membrane. The self-adhesive membrane can be laid onto almost any substrate, offering flame-free installation. The laps are sealed using hot air welding, reducing risk during the build phase, while providing a low maintenance service life of 50+ years. Working collaboratively with CARLISLE®,
Site Roofing developed the wind loading calculations for the project aligned to the high windspeeds and gusts typical of the location. The company also designed the complex detailing required for the interfaces between the flat roof areas and the pitched roof sections, working flexibly alongside the pitched roofing contractor to enable the project to progress.
Confidence in the long-term durability of the roofing system was also essential. RESITRIX® has excellent resistance to U/V, is not compromised by fluctuations in temperature, and is suitable for installation in the saline atmosphere of a coastal location like St Andrews.
Complex details
The flat areas at St Andrews West form link roofs between pitched roof structures, and several dormers within the pitched roofs also needed to be waterproofed using the roofing system. The integrity of the interfaces between the flat and pitched roof sections was critical, and the combination of Site Roofing’s experience and the versatility of the RESITRIX® system meant that these complex details could be completed neatly and with reliable performance.
Site Roofing coordinated works with the pitched roofing contractor to ensure a smooth programme and seamless finish, which was particularly crucial as the flat roof areas are visible from ground level, so any imperfection would be noticed easily.
Supporting progress
With multiple trades working on the project at any one time, continued access to the flat roofs was non-negotiable. The membrane’s EPDM and bituminous composition delivered a robust yet flexible roof covering, providing a durable and puncture-resistant, walkable surface throughout the construction phase, allowing the continued progress of a complex programme involving both flat and pitched roof areas, along with other trades.
Having all been trained at the CARLISLE® Academy, the Site Roofing team rose to the challenge, bringing a wealth of specific skills, in-depth knowledge, and experience to the project. CARLISLE® provided consistent and proactive on-site support to ensure the RESITRIX® system was optimally tailored to the project’s unique design challenges.
Quality assured
With a collaborative and meticulous approach, the two were able to achieve the highest standards of precision and quality, resulting in watertight roof installations that adhere to best practice guidelines and meet the prestigious aesthetic requirements of the project.
For more information on RESITRIX® visit, www.rdr.link/dbf033
