Shop our range at Selhurst Timber of PIR boards designed to provide high performance thermal insulation for walls, floors and roofs in residential and commercial construction projects. PIR insulation boards are widely used by builders and contractors to improve energy efficiency, reduce heat loss and meet modern building regulations. Suitable for cavity walls, solid walls, pitched roofs and flooring applications, these rigid insulation boards offer excellent thermal performance while helping maintain comfortable indoor temperatures and improving overall building efficiency. Are you spending over £150? You will receive free local delivery on qualifying orders across our delivery area.