Research and analysis

Thin internal wall insulation (TIWI)

Research into thin internal wall insulation used in retrofitting homes.

Documents

Thin internal wall insulation: summary report

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@beis.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Thin internal wall insulation, annex A: introduction to TIWI

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@beis.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Thin internal wall insulation, annex B: TIWI field trials

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@beis.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Thin internal wall insulation, annex C: predicting TIWI impact

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@beis.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Thin internal wall insulation, annex D: moisture risks of TIWI

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email alt.formats@beis.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

This project aimed to quantify the benefits and risks of thin internal wall insulation when used in retrofits of solid walled homes, compared to conventional thicker internal wall insulation.

Published 12 March 2021