PAS 2038:2021 Retrofitting Non-Domestic Buildings for Improved Energy Efficiency. Specification

Standard Number: PAS 2038:2021

Pages: 60

Released: 2021-08-31

ISBN: 978 0 539 11904 6

Name: Retrofitting Non-Domestic Buildings for Improved Energy Efficiency. Specification

Status: Standard

Overview

In an era where sustainability and energy efficiency are paramount, the PAS 2038:2021 standard is your definitive guide to retrofitting non-domestic buildings. This comprehensive specification provides a structured approach to improving the energy efficiency of existing non-domestic buildings, ensuring that they meet modern standards and contribute to a greener future.

Why Choose PAS 2038:2021?

The PAS 2038:2021 standard is meticulously crafted to address the unique challenges associated with retrofitting non-domestic buildings. Whether you are an architect, engineer, building owner, or facility manager, this specification offers invaluable insights and guidelines to help you achieve optimal energy performance.

Key Benefits:

• Comprehensive Guidance: Covers all aspects of retrofitting, from initial assessment to implementation and monitoring.
• Energy Efficiency: Focuses on reducing energy consumption and improving the overall energy performance of buildings.
• Environmental Impact: Contributes to reducing carbon emissions and promoting sustainability.
• Cost Savings: Helps in identifying cost-effective retrofitting solutions that offer long-term savings.
• Compliance: Ensures that retrofitting projects meet current regulations and standards.

Detailed Content

The PAS 2038:2021 standard spans 60 pages of detailed content, providing a step-by-step approach to retrofitting non-domestic buildings. Here’s a glimpse of what you can expect:

1. Introduction

An overview of the importance of retrofitting and the objectives of the PAS 2038:2021 standard.

2. Initial Assessment

Guidelines on conducting a thorough assessment of the building’s current energy performance, identifying areas for improvement, and setting realistic goals.

3. Planning and Design

Strategies for developing a comprehensive retrofitting plan, including selecting appropriate technologies and materials, and ensuring compliance with regulations.

4. Implementation

Step-by-step instructions for executing the retrofitting plan, managing the project, and ensuring quality control.

5. Monitoring and Evaluation

Methods for monitoring the performance of retrofitted buildings, evaluating the effectiveness of the retrofitting measures, and making necessary adjustments.

Who Should Use This Standard?

The PAS 2038:2021 standard is designed for a wide range of professionals involved in the retrofitting of non-domestic buildings, including:

• Architects
• Engineers
• Building Owners
• Facility Managers
• Energy Consultants
• Contractors

Release Information

Released on August 31, 2021, the PAS 2038:2021 standard is the latest and most up-to-date specification for retrofitting non-domestic buildings. With its release, professionals now have access to the most current guidelines and best practices in the industry.

ISBN and Identification

The PAS 2038:2021 standard is identified by the ISBN 978 0 539 11904 6, ensuring that you are referencing the correct and authoritative source for retrofitting non-domestic buildings.

Conclusion

Incorporating the PAS 2038:2021 standard into your retrofitting projects is a strategic move towards achieving superior energy efficiency and sustainability. This specification not only provides a clear roadmap for retrofitting but also ensures that your projects are compliant with the latest regulations and standards. By following the guidelines set forth in this standard, you can significantly enhance the energy performance of non-domestic buildings, reduce environmental impact, and achieve long-term cost savings.

Embrace the future of energy-efficient building retrofitting with the PAS 2038:2021 standard and make a positive impact on both your projects and the environment.

PAS 2038:2021

This standard PAS 2038:2021 Retrofitting non-domestic buildings for improved energy efficiency. Specification is classified in these ICS categories:

• 91.120.10 Thermal insulation of buildings
• 91.140.10 Central heating systems

This PAS specifies requirements for retrofitting non-domestic buildings for improved energy efficiency. It covers all buildings except those used as private dwellings (i.e. houses, bungalows, flats or apartments). However, non-domestic buildings do include multi-residential buildings in which occupants share some communal facilities, e.g. hotels, guest houses, hostels and students’ and nurses’ accommodation.

The requirements specified in this PAS cover the:

1. safe management of the retrofit process, from inception to completion;

2. assessment of buildings for retrofit of energy efficiency and related measures;

3. identification and evaluation of improvement options (energy efficiency measures);

4. preparation of improvement plans;

5. design and specification of energy efficiency measures (whether individual measures or packages of multiple measures);

6. installation of measures;

7. testing, commissioning and handover of installed measures;

8. fine-tuning of the performance of retrofitted buildings; and

9. evaluation of retrofit projects.

This includes measures or packages of measures that are intended to:

1. improve the insulation of the building fabric (exposed floors, walls, roofs, windows and external doors), reduce thermal bridging and eliminate thermal by-pass;

2. improve the air tightness of the building envelope;

3. establish a safe and dynamic moisture equilibrium through each element of the building fabric;

4. improve the resistance of the building envelope to water penetration in order to maintain the thermal properties of the building fabric, and the capability of the building envelope to manage moisture in a manner suited to its construction;

5. minimize overheating;

6. replace building services systems that use fossil fuels with low or zero carbon (LZC) systems;

7. provide efficient heating and cooling systems with effective controls, including systems that use LZC technologies;

8. provide efficient ventilation systems with effective controls in order to maintain good internal air quality and to minimize the risk of condensation and mould growth;

9. minimize the risks associated with chemicals, e.g. volatile organic compounds (VOCs), released within buildings, which might be increased subsequent to air tightness being improved;

10. provide efficient water heating systems with effective controls, including systems that use LZC technologies;

11. provide efficient fixed lighting with effective controls as part of an efficient lighting strategy related to the use of the building and the activities accommodated;

12. provide efficient equipment to reduce electricity use and minimize internal heat gains;

13. provide locally generated renewable heat using LZC technologies;

14. provide locally generated renewable electric power using LZC technologies;

15. provide demand management (e.g. on-site energy storage) especially where on site generation by LZC technologies is also provided; and

16. provide metering and monitoring systems (e.g. smart meters) to promote the efficient use and management of energy throughout the building.

NOTE 1 Effective controls are sometimes referred to as “responsive”, “intelligent” or “smart” controls, although none of these terms is well defined; effective controls are useable and demand-responsive.

This PAS applies to the retrofit of buildings, including retrofit that is undertaken at the same time as a change of use of a building, in which the types of activity accommodated are changed. This PAS also covers Type 4 (see 0.3) retrofit projects, in which non-domestic buildings such as shops or offices are refurbished or refitted internally and the work includes any of the measures listed above.

This PAS can be applied to all non-domestic retrofit activity and embraces work that is initiated, procured, funded and delivered in a wide variety of ways, including:

1. programmes of retrofit promoted and/or funded by national or local government schemes;

2. programmes of retrofit initiated and/or funded by landlords and commercial property portfolio holders;

3. retrofit of individual buildings by their owners and/or occupants; and

4. retrofit that is integrated with and forms part of broader repairs, maintenance and improvement (RMI) activity related to individual buildings or building stocks.

This PAS can be applied not only to retrofit work carried out by commercial building contractors and specialist installers of retrofit measures, but also to work carried out by local small and medium-sized enterprise (SME) builders and independent tradesmen working alone or in small teams.

This PAS is intended to support both the installation of all improvement measures at the same time or a staged approach in which improvements are implemented in stages. In either case, the recommended strategy is to reduce energy demand, improve energy efficiency and decarbonize the building services.

NOTE 2 Attention is drawn to the need to reduce the greenhouse gas emissions associated with the process of retrofitting buildings, as well as those associated with the operation of the building after retrofit. Retrofit process emissions can be taken into account when designs for retrofit projects are developed, and especially when materials, products and systems are specified. “Whole life” assessment of emissions is recommended.

This PAS is intended for use by anyone engaged in the improvement of the energy efficiency, energy performance or sustainability of non-domestic buildings, including owners and managers, tenants’ property managers, building professionals (including energy assessors and designers) contractors, builders and installers of energy efficiency measures.

This PAS does not cover or apply to:

• unheated horticultural glasshouses;

• routine maintenance or repair of any element of a building or system installed in it which does not involve improvement of the energy performance or ventilation of the building, or a reduction of the greenhouse gas emissions associated with energy use in the building; and

• “like-for-like” replacement of damaged or worn-out elements or systems that do not involve improvement of the energy performance or ventilation of the building, or a reduction of the greenhouse gas emissions associated with energy use in the building.

NOTE 3 Appropriate repair and maintenance of the building fabric can improve energy efficiency and is always the first step in energy efficiency improvements, even though it is not covered by this PAS. However, some routine maintenance or repair work might improve energy efficiency, and thus fall within the scope of this PAS.

NOTE 4 When replacement of damaged or worn out elements of a building becomes necessary, there is an opportunity to replace them with more energy efficient elements; this would bring the replacement within the scope of this PAS. See also BEIS’ Energy Technology List (ETL) for more information, available at https://etl.beis.gov.uk/.