Retrofit Directory

Here, you’ll find information on suppliers, construction details, technical studies, and practical guidance, all tailored to support the successful completion of retrofit projects.

Explore our carefully selected materials and tools to enhance your understanding and make informed choices throughout your retrofit journey.

Retrofit Pattern Book

The National Retrofit Hub’s Retrofit Pattern Book offers general guidance to improve the energy efficiency of existing homes. This resource is part of the Hub’s efforts to provide best practice guidance for retrofitting various housing archetypes, supporting homeowners and professionals in making informed decisions about sustainable home improvements.

Lime Green Building Regulations Advice

This article provides an overview of the key regulatory considerations when insulating your home’s interior walls, focusing on compliance with Parts L (fuel and power conservation), C (moisture), B (fire safety), and F (ventilation) of the Building Regulations.

Lime Green U-value Advice

Lime Green’s Warmshell Internal Wall Insulation is designed to significantly reduce heat loss through solid walls, offering energy and cost savings. This page offers U-value advice to comply with Building Regulations.

A Bristolian’s Guide to Solid Wall Insulation

This resource offers comprehensive guidance on retrofitting traditional homes, focusing on responsible and effective energy efficiency improvements. Developed by the Sustainable Traditional Buildings Alliance (STBA) and commissioned by Bristol City Council, the guide provides insights into solid wall insulation, emphasising moisture management and building health.

Sustainable Renovation Guide by Chris Morgan

This guide outlines ten strategies to enhance energy performance and sustainability in Scotland’s homes, offering detailed information and practical insights. Developed in collaboration with the Scottish Ecological Design Association (SEDA) and Historic Environment Scotland (HES), it aims to support effective and eco-friendly renovations.

Ecological Building Systems

Ecological Building Systems is a UK-based supplier of eco-friendly building products, specialising in natural insulation and airtightness solutions to enhance building performance and sustainability. They adopt a ‘Fabric First’ approach, emphasising the use of natural materials to optimise building durability and energy efficiency.

Lime Green

Lime Green Products is the UK’s leading manufacturer of high-quality lime-based building materials, including lime mortars, plasters, renders, and natural insulation solutions. Their products cater to conservation projects, eco-friendly builds, and new constructions, emphasizing sustainability and building health.

Back to Earth

Back to Earth is a UK-based supplier of sustainable building materials, specialising in natural insulation solutions like wood fibre insulation for roofs, walls, and floors. They offer personalised consultations and an interactive Learning Lab to guide clients in selecting eco-friendly materials for their construction projects.

The Evolution of PAS 2035

Victorian House Retrofit Case Study

Retrofit – Internal Wall Insulation

Fabric Upgrades and Heat Pumps

AECB

AECB is a UK-based network dedicated to promoting sustainable building practices, bringing together professionals like contractors, architects, and manufacturers to share knowledge and advance eco-friendly construction. It offers resources, training, and events to support its members in achieving high standards of environmental performance in building projects.

Passivhaus Trust – EnerPHit

EnerPHit is the Passivhaus retrofit standard. You can find plenty of resources available on the Passivhaus Trust UK website to learn how Passivhaus retrofit principles can transform existing buildings into energy efficient, comfortable spaces.