Parapet Wall Flat Roof Ventilation

Ventilated parapet detail cold roof installation of a typical ventilated parapet detail with the dryseal flat roofing system on a cold roof construction.

Parapet wall flat roof ventilation.

Provide venting to each wall cavity. Parapet detail masonry cavity wall flat roof with parapet insulation. Where there is a parapet or an external wall abutment to the flat roof the fv250 ventilator can be used above a 150mm timber upstand battened off the wall by 25mm as shown below. Venting in wood framed parapets.

Flat roof detail masonry cavity wall flat roof insulation above and between joists. The following images provide examples of flat roof details. Can use round louvered soffit vents to limit bulk water intrusion if venting holes are in exposed locations. I have short 12 parapet walls surrounding a flat roof house in zone 2a.

The 25mm batten space creates a clear airpath to the roof void below so reducing the possibility of condensation and mould growth. Flat roof detail examples. What is the best way of addressing the ventilation and weather barrier here. If cavity is greater than 12 above roof insulation provide high low venting in each wall cavity.

This video is about making a transition form a flat roof to a parapet wall with taracotta clay caps. Diagram below explains the build up.