PAS 2035
PAS 2035:2023 Retrofitting dwellings for improved energy efficiency - Specification and guidance is one of a number of Publicly Available Specifications covering retrofit, refurbishment and building upgrades. The others public specifications include; PAS 2030:2023 Installation of energy efficiency measures in existing dwellings and PAS 2038:2021 Retrofitting non-domestic buildings for improved energy efficiency.
PAS 2035:2023 (Incorporating Corrigendum No. 1) Retrofitting dwellings for improved energy efficiency – Specification and guidance describes retrofit building physics, building pathology, thermal models and calculations, approaches to retrofit in the medium term and at scale, performance considerations, standards and constraints, fabric first, interfaces, wholedwelling assessments, distressed replacement, retrofit designs, testing, commissioning and handover. It also also describes the various retrofit related roles, such as the main contractor and retrofit installer, retrofit advisors, coordinators, assessors, and evaluators aswell as standards, frameworks, competency and qualifications relating to these roles.
The PAS document says "Statutory national targets for the reduction of greenhouse gas emissions in response to the threat of climate change imply that very significant improvements need to be made in the energy efficiency of the UK’s building stock, including nearly all its 27 million domestic buildings. The Climate Change Committee sets “carbon budgets” under the Climate Change Act 2008, and the Government’s Net Zero Strategy includes a commitment to improvements in Energy Performance Certificate (EPC) scores in existing dwellings." It goes on to say that it "supports work towards those objectives by promoting and defining technically robust and responsible “wholedwelling” domestic retrofit work, i.e. highquality work that supports:"
- "a) improved functionality, usability and durability of buildings;
- b) improved comfort, health and wellbeing of building occupants and visitors;
- c) improved energy efficiency, leading to reduced fuel use, fuel costs and pollution (especially greenhouse gas emissions associated with energy use);
- d) reduced environmental impacts of buildings;
- e) protection and enhancement of the architectural and cultural heritage as represented by the building stock;
- f) avoidance of unintended consequences related to any of the above;
- g) minimization of the “performance gap” that occurs when reductions in fuel use, fuel cost and carbon dioxide emissions are not as large as intended or predicted; and
- h) protection of the general public and the client in relation to retrofit work."
[edit] Related articles on Designing Buildings
- Alterations to existing buildings.
- Do the building regulations apply to works to existing buildings?
- Demolition.
- Material amendment.
- Material change of use.
- Minor material amendment.
- Non material amendment.
- Change of use class.
- PAS 2038:2021 Retrofitting non-domestic buildings for improved energy efficiency.
- Planning permission.
- Permitted development.
- Principal designer.
- Renovation v refurbishment v retrofit.
- Retrofit.
- Retrofit projects and roles
- Types of work to existing buildings.
Featured articles and news
ECA progress on Welsh Recharging Electrical Skills Charter
Working hard to make progress on the ‘asks’ of the Recharging Electrical Skills Charter at the Senedd in Wales.
A brief history from 1890s to 2020s.
CIOB and CORBON combine forces
To elevate professional standards in Nigeria’s construction industry.
Amendment to the GB Energy Bill welcomed by ECA
Move prevents nationally-owned energy company from investing in solar panels produced by modern slavery.
Gregor Harvie argues that AI is state-sanctioned theft of IP.
Heat pumps, vehicle chargers and heating appliances must be sold with smart functionality.
Experimental AI housing target help for councils
Experimental AI could help councils meet housing targets by digitising records.
New-style degrees set for reformed ARB accreditation
Following the ARB Tomorrow's Architects competency outcomes for Architects.
BSRIA Occupant Wellbeing survey BOW
Occupant satisfaction and wellbeing tool inc. physical environment, indoor facilities, functionality and accessibility.
Preserving, waterproofing and decorating buildings.
Many resources for visitors aswell as new features for members.
Using technology to empower communities
The Community data platform; capturing the DNA of a place and fostering participation, for better design.
Heat pump and wind turbine sound calculations for PDRs
MCS publish updated sound calculation standards for permitted development installations.
Homes England creates largest housing-led site in the North
Successful, 34 hectare land acquisition with the residential allocation now completed.
Scottish apprenticeship training proposals
General support although better accountability and transparency is sought.
The history of building regulations
A story of belated action in response to crisis.
Moisture, fire safety and emerging trends in living walls
How wet is your wall?
Current policy explained and newly published consultation by the UK and Welsh Governments.
British architecture 1919–39. Book review.
Conservation of listed prefabs in Moseley.
Energy industry calls for urgent reform.