As part of the Wandsworth regeneration programme to increase the number of affordable homes, Wates Residential was awarded the contract to build a new, six-storey block of apartments on the Shuttleworth Road.
The structure included 59 concrete balconies, all requiring waterproofing with a product with a minimum fire rating of A2-s1-d0, tested to BS EN 13501-1.
Not only was Newton able to recommend a product that had already been used on a similar project this year, but they were also able to recommend the expert services of Newton Specialist Contractor Arti Structural Waterproofing.
The minimum fire rating of A2-s1-d0 now precludes the polyurethane and polyurea products that were commonly used on balconies, so Newton recommended the cementitious and modified-polymer Newton 103-S membrane. As well as carrying the required fire rating, 103-S can resist extremely high positive and negative water pressure, forming a hard, durable coating with a degree of elasticity that makes it ideal for protecting concrete.
Arti also used Newton 203-RM to create smoothing fillets, and Newton 912-RT to reinforce the 103-S over the joints, details, and changes in direction.
On-site, Arti also needed to work flexibly, as the programme could not proceed without the waterproofing and fireproofing of the balcony upstands. However, due to the propping of the concrete formwork to the floors above, Arti had to execute their installation in two phases of efficient and detailed waterproofing.
Thanks to a meticulous eye for detail, as well as careful planning and thorough preparation of the concrete balconies, Arti was able to complete the waterproofing of all 59 balconies in two stages. This was managed as well as delivering the required A2-s1-d0 fire rating, and the installation was completed quickly without compromising the programme of the build.
"We are very pleased to have the opportunity to use Newton’s unique products to provide a robust and quick solution for Wates Residential in order to meet the new building fire regulations at the same time as achieving the required waterproofing to the balcony structures. It has also been a pleasure to work with a very professional construction management team throughout." - Lucian Ardeleanu, Managing Director, Arti Structural Waterproofing