Kemper System delivers roof refurbishment to Art Deco gem

Public Sector Tue, May 29, 2018 9:32 AM

The roof of an occupied 1930s art deco municipal office building, situated in the busy town centre of Blackpool, Lancashire, required urgent repair.

The building was experiencing standing water on a largely zero falls roof with only four drainage outlets, meaning water had started to leak into the occupied offices below.

Kemper System’s Stratex Warm Roof system using its Kemperol V210 was specified for the 1,200m2 roof area - offering exceptional performance and supplied as a complete integrated system of matched components.

The Kemperol V210 is a polyester-based resin, applied wet-on-wet that forms a permanently elastic, seamless, yet highly durable waterproofing membrane.

Due to limited access on site, Lancashire-based Castle Contractors had to remove 40 tonnes of stone ballast and inverted insulation on the existing roof by hand. Because of the volume of material and the busy street location of the building, skips were not suitable to dispose of the waste, so the material was lowered from the roof and then immediately taken away from site using contractor’s vehicles.

The roof was extremely complex with detailing around air-conditioning units, raised steelwork and cable trays in close proximity. Contractors also removed and replaced eight rooflights and boxed-in others that were no longer required. All existing steel work on the roof was treated and encapsulated with plywood and waterproofed with Kemperol to ensure additional life span.

Contractors had to clean the roof prior to the application of Kemper System’s Kemperol V210. The lack of drainage meant any power washing created more ponding on the roof. Therefore, contractors used a vacuum wash and dry system that automatically extracted the waste water and pumped it directly down the drainage outlets.

After cleaning the substrate, contractors applied Kemper System’s Kempertec D Primer over the Kempertherm F insulation as part of the warm roof build-up. The insulation is rigid PIR board with multi-layer foil composite face on both sides, and has tongue and groove edges for interlocking construction. Kempertec EP5 Primer was also applied prior to installation of Kemperol V210 to the roof deck and stairwell areas.

The cold-applied Kemperol V210 liquid resin saturates a non-woven reinforcement fleece that is tailored to the exact contours and details of the roof. The waterproofing is installed in a single process and cures to provide a robust waterproof membrane that cannot delaminate and is UV stable.

Mark Atherton, managing director at Castle Contractors, said: “There were three main challenges to overcome on this project – the safe removal of the existing ballast, cleaning of the roof prior to application, and the creation of drainage channels to carry water to the outlets.

“Due to budget constraints preventing the use of a full tapered insulation scheme to improve the drainage, it was agreed by the client, Blackpool Council, for us to create a 50mm deep channel system in the warm roof build-up to route all the water to the four drains that serve the entire roof.

“Because Kemper System is applied wet-on-wet, we were easily able to waterproof the entire roof area including the new drainage system, and execute complex detailing around the roof lights with ease.

“Access to site was extremely challenging so the simple yet effective equipment required on site was ideal.

“Thanks to the successful application of Kemperol and on-site technical guidance, we were able to develop a good relationship with the client for future projects.”

Stuart Hicks at Kemper System added: “Despite the challenges faced by Castle Contractors, the project was completed ahead of schedule thanks to the quick and easy application of the Stratex Warm Roof system and our Kemperol V210 liquid waterproofing system.”

“The project was shortlisted for the Liquid Roofing and Waterproofing Awards due to the complexity of the roof which made this an ideal project for a liquid applied membrane, the technical solution offered, and the difficulties experienced with site preparation and logistics.”

Featured News

Specification news
Composite – the perfect timber alternative for the...

Timber has traditionally been the material of choice for councils when it comes to...

Read More >>

Specification news
Council embrace innovation with roll-out Ei3030...

Cheshire West and Chester Council, colloquially known as ‘CWAC’ have embraced new...

Read More >>

BUILDING PRODUCT LIBRARY - LATEST BROCHURES

Novantica - Cement Free Restoration  Brochure

Novantica - Cement F...
By Fassa Bortolo

Download Now >>

Fassatherm System - Product Catalogue  Brochure

Fassatherm System -...
By Fassa Bortolo

Download Now >>

Fassarend System - Product Catalogue  Brochure

Fassarend System - P...
By Fassa Bortolo

Download Now >>

Fassalime System - Product Catalogue  Brochure

Fassalime System - P...
By Fassa Bortolo

Download Now >>

BUILDING PRODUCT DIRECTORY - LATEST PRODUCTS

Straightcurve®
Straightcurve®

Straightcurve® – headquartered in Australia, is renowned for high-end innovative garden edging,...

Read More >>

RLG600 Access Flooring System
RLG600 Access Flooring System

The Kingspan RLG600 raised access floor panel is intended for light office use and is capable of...

Read More >>

RHG600 Simploc
RHG600 Simploc

Kingspan RHG600 Simploc is the heavy grade floor system, capable of handling up to a 12kN/m2...

Read More >>

CONSTRUCTION VIDEOS - LATEST VIDEOS

Discover the first-ever reference book for stone wool insulated sandwich panels
Discover the first-ever reference book for stone wool insulated sandwich panels

“Building with stone wool insulated sandwich panels” written by Professor Imperadori, is now...

Watch Now >>

Portakabin | Installation at the iconic Admiralty Arch, London
Portakabin | Installation at the iconic Admiralty Arch, London

Portakabin | Installation at the iconic Admiralty Arch, London

Watch Now >>