Odourless and solvent free, the liquid waterproofing system
was installed by north-London based roofing contractors Liquid
Waterproofing Ltd. It was applied directly onto the 110m-thick
plywood structure, in a single wet-on-wet process using a
reinforcement fleece. Once cured, the system formed a seamless,
elastomeric waterproof membrane which bonded directly to the
substrate.
Tony Mctigue director of Liquid Waterproofing Ltd said: “The steep
slope and curves on this unusual roof demanded a very easy to
apply and durable waterproofing solution, so Kemperol was ideal.
As it is laid using a roller and wet-on-wet, we were able to install it
quickly and effectively including around the detailing, specifically
the circular lighting units.
“As the structural concept hadn’t been tried before, the roof was
carefully load tested using bags of water. As Kemperol has excellent
elasticity this also provided the assurance that the waterproofing
would not be affected if there was any movement.”
A COMPLETE SOLUTION
After the Kemperol 2K-PUR had been applied, it was topped with
richly planted sedum. However, as parts of the roof’s perimeter
remained visible, Kemperol Reflect was also applied. This is a
white waterproofing system comprising special liquid synthetic
properties which reflect UV and infrared radiation away from the
roof, ensuring the surface temperature remains cooler than when
using traditional darker roofing materials.
Stuart Hicks from Kemper System commented: “Kemperol provided
a perfect membrane for the green roof and will provide long-term
protection, ensuring this stunning structure retains its impressive
appearance for many more years to come.
The Sun Rain room has won multiple awards including being named
the overall winner of New London Architecture’s prestigious Don’t
Move, Improve! awards in 2018, which showcase the Capital’s best
and most innovative new home extensions.
www.kempersystem.co.uk
“As the property is in close proximity to a number of neighbours
and is also used as workspace for the architectural practice, which
remained operational throughout the project, the fact Kemperol
2K-PUR is odourless and solvent free was another major benefit.”