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Home > Building elements and structures > Roofs and roofing 

Title: Ventilated and unventilated cold pitched roofs
Subtitle: 

Ref Code: GG51
Authors: C Stirling

Abstract1: In a 'cold' pitched roof, the insulation is fitted at ceiling level, but there is a risk of condensation on the underside of the roof. Since the 1960s, the accepted solution has been to ventilate the loft space by openings to the outside at eaves and ridge. More recently, vapour permeable underlays are sometimes used as an alternative. With the introduction of the unventilated cold pitched roof, the general principles and risks need to be clarified and approved construction techniques identified. By giving guidance on the technical risks associated with ventilated and unventilated forms of cold pitched roofs, this Good Building Guide responds to some of the confusion and conflicting views.

Contents: 

 

Year Published: 2002

ISBN: 978-1-86081-554-6

 

Pages: 6

 

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