Shop our range at Selhurst Timber of breather membranes designed to improve ventilation and moisture control within roofing and wall structures. Breather membranes allow moisture vapour to escape from within the building while preventing water from entering, helping protect insulation and structural elements from damp and condensation. Commonly used in roofing and wall construction, these membranes play an important role in improving building performance and protecting structures from moisture related damage. Also are you in need for help with finding the correct amount? Please use our material calculators to help.