Roundtower Products


A range of lime binders, lime mortars and insulating lime plasters.

Breathable Paints

Breathable paints for both historic and contemporary construction

Roundtower Limecrete Flooring System

Limecrete floor systems are a modern interpretation of traditional solid floors that are both insulating and effective at managing ground moisture.

Waterproofing & Breathable Sealants

A range of Delta membrane systems and 'breathable sealants'.

Associated Products

A range of associated building materials.


A range of natural insulation systems.

Airtight & Windtight Systems

Our airtight and windtight systems offer a solution to draughts, uneven temperatures and the risk of the build-up of mould and damp.


With Roundtower Lime’s extensive expertise in the manufacture and application of construction materials suitable for use on older properties, we can offer our services on a consultancy basis for any project.