Скачать или смотреть How to fit an external vent

This video shows how to fit an external wall vent, these are often used for extractor fans, tumble driers or even just straight through vents as in this demonstration to ventilate a loft space. By using silicone or grab adhesive to hold the vent in position it removes the need to drill any fixing holes which can be very dangerous from a ladder. The hole for the vent was cut from the inside using a diamond core drill-    • How to use a diamond core drill  
If you are installing a vent low down to the ground then drilling a few holes is not a problem, but when its high up you are much safer if you can remove the need to drill from a ladder. Silicone sealant or grab adhesive can be used to hold the vent in position.