Nigel Gervis



Afternoon Session

15.30:Middle Ground”

Nigel Gervis, Ty-Mawr



Established in 1995, by husband and wife, Nigel and Joyce Gervis, Ty-Mawr Lime Ltd has made an enormous contribution to resurrecting the use of traditional building materials in Wales.

Ty-Mawr Lime Ltd has gone on to become a market leader in the design, manufacture, and distribution of environmentally-friendly building materials and systems, providing a ‘one-stop’ shop to clients throughout the UK.

In 1993 Nigel and Joyce Gervis purchased Tyˆ-Mawr, a run-down farm in the heart of the Brecon Beacons National Park. Wanting to restore the listed building sympathetically, the couple set about sourcing traditional lime mortars and plasters for their project. The problem was they weren’t easily accessible so with a wealth of building restoration and project management experience between them, Nigel and Joyce decided to produce their own and Tyˆ-Mawr Lime Ltd was born.
It has subsequently become one of UK’s market leaders in the design, manufacture and distribution of traditional and environmentally-friendly building materials and systems.

Tyˆ-Mawr Lime Ltd is dedicated to minimising the impact of buildings on the environment and supplies a complete range of environmentally-friendly materials compatible with ‘breathing building’ principles, including mortars and plasters, paints and finishes, building boards and insulation products. The company has also developed a unique range of award winning ‘greener’ alternatives to mainstream building products such as glaster® – a lime plaster made with recycled glass instead of sand; lime hemp plaster, which uses hemp fibres instead of sand, and their sublime-insulated limecrete floor, an environmentally-friendly alternative to concrete. Its work in this field has won Tyˆ-Mawr Lime Ltd several awards including the Local Authority Building Control (Cymru) award for Technical Innovation in 2013 and being named a sustainable development champion on the Wales Green List. In 2014, Tyˆ-Mawr was proud to be presented with the Powys Business Award for the ‘Development of New Markets’.

In his presentation, Nigel will explore:

  • Factors effecting material choice
  • Importance of fabric first
  • Values of Ty-Mawr – lessons learned