New Re-roofing and Insulation Scheme, Gwynedd

Welsh housing association, Cartrefi Cymunedol Gwynedd (CCG) recently appointed SBS to carry out a series of refurbishment and energy efficiency works to occupied properties in Gwynedd. This represents the first phase, with further works possible.

The scheme, which is expected to run until March 2017, focuses on 19 semi-detached properties and 12 flats in 3-storey blocks in Dolfur. Both property types will be occupied throughout, and residents include a mix of leaseholders and homeowners.

The houses were originally built with either solid brick walls or a narrow cavity. Those that had a cavity had been insulated at some stage but this had permitted the transmission of damp. Before any new insulation works were carried out, the old cavity fill was therefore removed. SBS was then commissioned to install a new external wall insulation system that would improve thermal efficiency while also providing renewed weatherproof protection.

This treatment was required for 17 of the 19 semi-detached homes, together with the re-slating of the roofs. A new breather membrane was fitted and, where possible, original slates were re-used. The remaining two houses required relatively little work - just the replacement of some windows and the installation of new top-up loft insulation.

The flats also require a new external wall insulation system, which SBS will install, together with the fitting of a new 'warm roof' comprising new insulation and mineralised felt. (See accompanying photos.) As with the houses, a number of the flats will also require energy efficient replacement windows.

SBS already works extensively in North Wales and has a local workforce. In addition, however, it has appointed a new bilingual resident liaison officer for this project and has produced new literature and resident documentation in both Welsh and English. The work will be delivered to the latest Welsh Standards.

To support the scheme, SBS has established new site offices in Pwllheli and Llanbedrog on the Llyn Peninsula.

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