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Riverside View Keynsham with Thermaweld
The Project
The project involves 18 roofs, totalling more than 5,200m2, and two different roofing disciplines: liquid install and bituminous felt.
This complex project encompasses two five-storey office blocks on opposite sides of a square, two blocks linking these two main buildings and then a leisure centre completing the square, with gym facilities at ground floor and a swimming pool below. In common with many municipal buildings of the time, the development was built in concrete, with concrete deck roofs throughout.
In the makeover developed by AHR architects, all these buildings gain smart new facades and the office blocks become 98 apartments overlooking the River Chew. The ground floor is Keynsham Leisure Centre, which has been extended and refurbished. At ground level shops, cafes and restaurants ring the plaza, while the leisure centre area beneath has had its swimming pool and gym extended and refurbished.
Project Name: Riverside View Keynsham
Contractor: Span Roofing Contractors Ltd
Main Solution: BMI Icopal Thermaweld
Testimonials
BMI Icopal Guarantee
“BMI Icopal's Technical Specification Manager oversaw the project to ensure that the installation was as per the specification and so qualified for its 20-year guarantee.”
Span Roofing Contractors
The System
“Residents in the new apartments will enjoy greater comfort and lower energy bills with the BMI Icopal Thermaweld FireSmart warm roof build-up, while Thermaweld FireSmart cold roof build-up protects the single storey buildings linking to the two main residential areas and the leisure centre roof at ground level.”
Span Roofing Contractors
The Challenge
The Challenge
The complexity of this project lies not so much in the details and design features but the mixed-use development itself, the two systems required for roofing, keeping the shops and the leisure centre open during the project and the design work needed to ensure it met the needs of the different institutions financing various elements of the project.
Each building became the property of different sets of institutional investors, each of which wanted the comfort of 20-year guarantees on the roofs, irrespective of when they were completed or their different compositions.
In the makeover developed by AHR architects, all the former civic buildings gained smart new facades and the office blocks became 98 apartments overlooking the River Chew and the ground floor of Keynsham Leisure Centre, which has been extended and refurbished. At ground level shops, cafes and restaurants ring the plaza, while the lower-level leisure centre beneath has had its swimming pool and gym extended and refurbished.
The Solution
The Solution
All of the development has been upgraded to 21st century standards using two of the BMI Icopal suite of roofing systems: a liquid install Sealoflex Ultima and BMI Icopal Thermaweld FireSmart bituminous felt system.
The plaza, or podium, is waterproofed with Sealoflex Ultima Liquid Applied Waterproofing walkway system, protecting the roof of the swimming pool while also providing a robust anti-skid surface for pedestrians on its own or supporting decorative paving. Sealoflex Ultima is a single component coating, so it is quick to install and easy to use – a useful point in this case as it meant that the podium could be waterproofed, yet bear the scaffolding required for the refurbishment of the office blocks. When the scaffolding came down, it could then be easily recoated. It has little or no odour, an important consideration in a public area like this. Seamless and lightweight, Sealoflex Ultima can be applied as a complete roof overlay solution or as a detailing solution in combination with bitumen and synthetic membranes.
On the residential blocks Span Roofing installed Total Torch Vapour Control Layer, Thermazone Torch-On Insulation, Total Torch Vapour Dispersion Layer and a BMI Icopal Thermaweld FireSmart Mineral on top of existing BUR (Built Up Roofing) that laid on top of the cast concrete decking.
The Impact
The Impact
Every roof in the development enjoys the same 20-year System Plus guarantee from BMI Icopal, irrespective of the different roofing systems installed. This covers consequential and incidental damage, contractor insolvency, workmanship, any design provided by BMI Icopal; and all BMI Icopal systems. Importantly, for those investors who have taken a stake in part of the development, this guarantee can be assigned to another party.
Residents in the new apartments will enjoy greater comfort and lower energy bills with the Thermaweld FireSmart warm roof build-up, while Thermaweld FireSmart cold roof build-up protects the single storey buildings linking to the two main residential areas and the leisure centre roof at ground level.
Related Case Studies
Thermaweld
Thermaweld
Tested. Trusted. Tailored.
Thermaweld is one of the UK’s most trusted bitumen flat roofing systems, it’s tried, tested and reliable so you and your clients don’t have to worry.
Key features
Faster application because of its unique mini groove technology
Technically advanced low heat-reactive bitumen
Lap security for maximum resistance to wind uplift
Tested, Tailored. Trusted, with up to 20 year guarantee
