Choose the warm roof stucture that applies to your roofing projects structure.
Duo pitch roof with clear air pathWhere underlay/breather membrane is to be installed on top of counterbattens.ORWhere 50mm air passageway between insulation and underlay/breather membrane occurs below the top face of the rafter.
Read more about the control of condensation requirements for this type of construction and the Decra solution.
Duo pitch roof with clear air pathWhere breather membrane is to be installed on top of rafters (i.e in contact with insulation) and underneath 50mm x 50mm counterbattens (or 38mm where Decra 700 breather membrane is used).
Let Decra offer you expert advice and information at every stage of your project.For technical advice and assistance.01293 545058Or for local advice technical advice and support