Roof Vents

Why vent?

Moisture venting helps remove any retained moisture in the substrate. When working on substrates where moisture is present, it is vital to vent under the membrane. Failure to do so will allow the entrapped moisture to expand under the membrane causing bubbling.

Roof-space venting of confined skillion type roofs creates air flow and equalises roof-space pressure. Roof space venting minimises temperature variations across the roof and so reduces substrate movement due to thermal expansion and contraction.

A minimum of two vents are required in each roof area to be vented. Vents should be installed for every 50m² of roof area.

pdf Aeratori Per Ventilazion E Raccordi Tubi in TPO.pdf (0.27MB) 
pdf Aeratori Per Ventilazione in TPO.pdf (0.25MB)

Get In Touch

Many factors need to be considered in order to come to a decision for your waterproofing. Sealco Waterproofing Systems have experienced staff that will be able to guide you through the best solution to your waterproofing needs.

Our Location

31 Newtown Street
Bromley, Christchurch 8062
0508 Sealco (292837)
PO Box 35-190, Christchurch 8640 admin@sealco.co.nz