If you’re interested in lap vents or fitting other types of roof ventilation like roof tile vents please visit the website here : http://www.fixmyroof.co.uk/roof-vents/
This video shows what is probably the fastest and cheapest way to DIY ventilate damp or hot roof spaces like an attic… Lap vents.
Lap vents are suitable for any roof with bitumen based under felts or modern breather membranes. Even new roofs fitted with breathable membranes can suffer from a build up of condensation or trapped heat under the right conditions. Often the extra ventilation offered by 10 – 20 of these simple low profile lap ventilation units can solve most problems.
For those who have condensation problems in the home please wee my webpage for advice and a video : https://youtu.be/Oj99RNY55Es
Some of the items talked about in the videos and mentioned on the website are available from affiliate links in case you wish to purchase.