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The best way to apply render and plaster to wood fibre insulation.

Find out more about how we approach this building scenario.

In this video we show how to apply the UdiFOUNDATION COAT render but the same process applies to all of our thin coat renders, such as the Baumit MC55, Baumit StarContact, Baumit OpenContact and UdiMultigrund.

The render is applied with a steel trowel at approximately 5-6mm thick over the EPS plinth area and the wood fibre boards. This is then troweled with a 20mm knotched trowel to ensure the correct render thickness.

CPD Training

We offer CPD training for architects practices across Devon and Cornwall.

Software Modelling

We offer dynamic heat and moisture modelling as well as condensation risk analyses.

Building Plan Review

If you have some plans and would like our opinion on which materials would be the best for you, contact us.


Back to Earth is a natural building material supplier. We're not your typical builders'​ merchant though and instead work closely with our clients during the planning, designing and building phases of projects.

Back to Earth is a proud signatory of the Anti-Greenwash Charter:

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