timber

The roof’s restoration required timber from more than 1500 oak trees.

But some of the UK's biggest mortgage firms are reluctant to deal with homes with spray foam insulation due to concerns over poor fittings leaving moisture trapped and roof timbers at risk of decay.

The roof timbers, for example, are now protected with sprinklers and partitioning.

But if it has been used inappropriately or installed poorly, it might put stress on timbers, restrict air circulation and put them at risk of decaying.

The world's first wood-panelled satellite has been launched into space to test the suitability of timber as a renewable building material in future exploration of destinations like the Moon and Mars.