PAS 2035/2038

Coombs retrofit projects are centred around the PAS guidance documents, we have the skills and experience necessary to enable our clients to achieve full compliance. In terms of PAS 2035, this is a ‘whole house’ retrofit solution. These standards are designed to protect the health and wellbeing of occupants as well as protecting the integrity of buildings and their architectural heritage by identifying, assessing, and managing technical risks.

We are qualified through RJ Barwick Ltd (our parent organisation) as a Retrofit Coordinator and registered with Trustmark. The PAS 2035 Retrofit Coordinator ensures that each project is monitored and evaluated to determine whether the intended outcomes of the project have been realised, and to learn from any project specific or systematic problems within a building’s risk assessment, the design, installation of energy efficiency measures, the testing and commissioning, and the handover. So, the Retrofit Coordinator is responsible (as the ‘retrofit lead’) for overseeing the retrofit process from start to finish, ensuring the project is safe, high quality and meets the retrofit measures.

Coombs has a proven reputation for undertaking heritage and listed building projects. It is a widely held view that older buildings are not energy-efficient and must be radically upgraded in order to improve their performance. In reality, the situation is more complicated, and assumptions about poor performance are not always justified. Getting the balance right (and avoiding unintended consequences) is best done with a holistic approach that uses an understanding of a building, its context, its significance, and all the factors affecting energy use as the starting point for devising an energy-efficiency strategy. This ‘whole building approach’ ensures that energy-efficiency measures are suitable, robust, well integrated, properly coordinated and sustainable.

"It is a mistake to assume that familiar materials will continue to behave in exactly the same ways in a changing climate. Designers will need to have a thorough understanding of the fundamental principles of materials' behaviour and building physics so as to predict behaviour under different climate conditions."

Design for Future Climate, report by architect Bill Gething