It is evident that significant improvements need to be made within the energy efficiency of the UK’s building stock, if the country is to meet its global carbon commitments.
In 2015 the government commissioned the Each Home Counts review to identify and tackle the high level of failure present in domestic retrofit, and to determine a better process for the retrofit of energy efficiency and renewable energy measures. PAS 2035 (PAS 2035:2019 Specification for the energy retrofit of domestic buildings) was introduced as a result of this review, with the backing of industry and the government department for Business Energy and Industrial Strategy (BEIS).
Following a transitionary period the government has proposed to make compliance with PAS 2035 mandatory for all public funded projects which would include ECO funded retrofit projects
How is Pas 2035 Different?
The Pas embraces quality retrofit work eliminating problems associated with defects, shallow retrofit, accountability, poor design and performance gap. Pas 2035 delivers a whole building approach to the retrofit process, considering the home, environment, occupancy and the suitable measures to install. This eliminates the issue of the retrofit work being considered in isolation which can unintentially damage the overall building performance.
Retrofit Assessors are trained to undertake a retrofit assessment for dwellings in accordance with PAS 2035. The activities completed within the retrofit assessment include the production of an RdSAP assessment, a detailed floor plan, a condition report and an occupancy assessment.
The data collected from these sources is used by the Retrofit Coordinator to formulate a Medium-Term Improvement Plan. Accredited DEAs are well placed to become qualified Retrofit Assessors due to their extensive knowledge and experience with RdSAP methodology and assessment of existing dwellings.
Retrofit Coordinators are required for all domestic retrofit projects in order to comply with PAS 2035. The Retrofit Coordinator occupies a vital project management role within the retrofit process and are needed to protect both the interest of clients and the public. They are responsible for overseeing a domestic retrofit project from inception to completion, and will liaise with building owners, and other retrofit project stakeholders in order to ensure effective project management.
A Retrofit Coordinator can prepare a Medium-Term Improvement Plan using data from retrofit assessments, to provide a scope for improvement over a 20-30 year period.