Insulating Lime Plaster - Research in conjunction with Plymouth University

Cornish Lime Company Ltd. and Plymouth University, with support from the Engineering and Physical Sciences Research Council (EPSRC), are researching the potential to increase energy efficiency in the UK’s built heritage with an insulating lime render.

The Climate Change Act 2008 has set ambitious targets for reducing the UK’s carbon dioxide emissions, reflected in more stringent building regulations. It is likely that the requirements of Approved Document L1B: Conservation of Fuel and Power (Existing Dwellings) will increase over time, as heating existing dwellings in the UK makes a significant contribution to carbon dioxide emissions. While it will be possible to add external insulation to some buildings, and some can have internal, insulated screen walls, external insulation or internal floor area loss / restricted breathability would be inappropriate for many heritage buildings, as recognised in Approved Document L1B.

This research project is about: quantifying the energy efficiency achievable through an insulating lime based render used on the internal face of external walls, especially solid walls; identifying the thermal and physical properties such an insulating render would need; and then developing such a material.

The research project is led by:

Dr. Pieter de Wilde, an expert in building physics and building simulation

Dr. Brian Pilkington, a Chartered Surveyor and Chartered Builder with some 30 years’ experience working with traditional buildings and a doctorate in measuring the thermal conductivity of building materials

Dr. Stephen Grove, a Chartered Physicist


Should you require any further information please do not hesitate to Contact CLC.

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