Merthyr Town EWI Refurbishment

Merthyr Town project is a blended funded programme consisting of Welsh Government Funding, Eco and Landlord contribution. The aim of the project is to improve the thermal and energy efficiency of 120 private dwellings and 70 registered provider properties, to reduce fuel bills and enhance the aesthetic appearance of the area.

Management agent Melin Homes, appointed Joyner Group, as the principal contractor and approved installer with SPSenvirowall as the system designer.

The six month programme to deliver energy efficiency was successfully achieved despite several challenges, which included structural repairs and re-roofing, to be signed off at various stages.  With each property taking an average of 4-5 weeks to complete, the employment of extra labourers in the local area was required in order to achieve the time scale set. Due to the success of delivering this contract on time, extra funding for a further 122 properties was awarded, providing sustainable employment for those working on the original scheme.

Subject to the structural survey, the properties, which initially provided a thermal performance of 2.1w/m2k, had its external façade removed to undertake the remedial work before applying a newly installed 18mm sheathing board. The specification then consisted of SPSenvirowall 100mm Lambdatherm EPS insulation with a dash aggregate finish that achieved a new thermal rating of 0.26w/m2k.

The Challenges

Structural engineers Curtains, found that on average, 90% of the steel frame building required remedial action either strengthening or replacing the structural stanchions.  These works ranged from welding repairs at 400mm high to complete a replacement of the five metre stanchions.

The additional works required to ensure that the structure was suitable to receive the EWI included full removal of the existing façade, inspection of each steel stanchion to verify their suitability and repair where necessary. It also included the application of a new Structural ply board substrate, with cavity closures and fire barriers fitted within the cavity to avoid heat loss through the roof eaves.

Due to the complexity of these properties, SPSenvirowall and Joyner Group had to work closely with the structural engineers to overcome the building fabric concerns before the EWI could be applied. In some cases the structure had to be stabilised for this work to take place and required the engineer present at all times.

During the project, SPSenvirowall ensured materials and technical support were readily available to satisfy the requirements of the customers, contractor and home owner and most importantly suitability to the system built property itself.

The Benefits

Due to the success of this work, residents are able to benefit from warmer homes whilst reducing energy bills.

The local community also benefited from the social inclusion involvement organised by Melin homes, where a combination of material and labour to the value of approximately £15,000 saw the local TAG Centre also having the required work to ensure a warm and safe environment. The well-known TAG Youth Centre situated on Glasier Road, is a voluntary organisation which aims to provide a safe welcoming environment for the people of Merthyr Tydfil. It has more than 100 young members aged six to eighteen and is run by a management committee with an aim to improve the employ-ability of young people as well as enhance community relations and reduce anti-social behaviour. The works have comprised of a structural engineers investigations, some new windows and External Wall Insulation to the old non- traditional built centre. We hope that our works will help to reduce the running costs and provide a more comfortable environment for the user of the busy facilities.

Local employment was a key performance indicator with the project and the vast amount of additional labour required to complete the task was a huge challenge to employ, train and manage. We provided new employment opportunities to 36 operatives who had previously been unemployed. This included carpenters, plumbers, labourers, and plasterers.

Our training hours for the project was exceptional with our 472 hours of training in many subjects including, first AID, Asbestos awareness, Manual handling, abrasive wheels, temporary works coordinator, CSCS, SMSTS, SSSTS and NVQ’s in administration, EWI and site management.

We worked with local employment agencies to locate suitable people; we even provided employment to two people who lived within the site area.

A total of 420 tonnes of waste generated on site with 99% of this recycled or avoided landfill.



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