Sparrow Close, Waterlooville

Sparrow Close, Waterlooville

Client: Portsmouth City Council

Background: TSL were instructed by Portsmouth City Council to partner with Alumasc Roofing Systems to complete a condition survey of the flat roofs at Sparrow Close. Core sample analysis was completed which identified the existing waterproofing system to have failed with moisture found within the existing system. Ponding water was apparent within the gutters and existing fall were insufficient. Further core samples to the field area found the existing system had reached the end of its serviceable life but in a suitable condition to be overlaid, thus offering the client a commercially advantageous solution to their failing flat roofs.

Scope Of Service: Strip up of existing central gutters, 86m², with bespoke designed tapered insulation scheme to improve both the thermal performance of the area and falls within the roof to enhance the water drainage. Main roof area, 792m², was overlaid with flat board insulation to improve the thermal performance of the whole roof to comply with Building Regulations Part L. Alumasc’s ‘Derbigum Olivine’ system was utilised due to its CO2 neutralising properties assisting Portsmouth City Council with their carbon footprint reduction targets. All of which was covered by a comprehensive guarantee for 35 years giving the client peace of mind.

Form Of Contract: Purchasing Contract

Contract On Site: 8 Weeks

TSL were involved from an early stage to provide technical expertise to assist Alumasc Roofing Systems in compiling a suitable design brief for the project supported by budget prices to assist Portsmouth City Council. TSL were chosen due to their status as a ‘Tier-1’ contractor on the PCC Flat roofing framework agreement.

Building remained occupied throughout the project which TSL had to make allowances for within their health & safety procedures and project program. A key driver for the client, was to ensure the residents remained unimpacted throughout the project, which TSL achieved through regular communication.

Project was procured through Main Contractors due to other elements being completed to coincide with the roofing package. TSL secured the work through their quality and price submission.

The contractor and client were ecstatic with the quality of the project, being delivered on time and within budget.

Related case studies

We were invited to participate in this project at a very early preconstruction stage, this enabled us to work closely with the client’s design team to ensure the developing proposal suited the client’s requirements as well as met all standard compliance criteria. TSL’s industry known ability to work with minimal disruption was heavily leaned on […]

The client brief consisted of an entire facial uplift to the main entrance & external facade of the hotel, to be completed alongside the internal refurbishment of this wing of the building. An important part of this scheme was being involved with the clients design team from the start, this enabled us to work with […]

We completed this project during lockdown 1.0 and we thoroughly enjoyed what is typically a complicated project due to the curved nature of the existing substrate and subsequent panels. The curved nature of the building requires a pinpoint accurate design & procurement period to ensure the panels are created millimeter perfect to achieve the desired […]

Latest News

Antony Knight Project Manager

Employee Spotlight – Antony Knight

Antony celebrates his six-year anniversary this month so we felt there’s no better person to ask about what it’s like …

Read More >

Meon Milton on the Move

Great to see Meon Milton FC under 7’s in their new TSL kit, they’ve made a strong start and we …

Read More >

Employee Spotlight – Lily Sait

Lily celebrates her one year anniversary with TSL this month so we’ve taken some time to learn more about her …

Read More >