Https youtu be tp7d t5wfzc this video takes a look at the basics of roof ventilation a.
Loft insulation roof vents.
Space attic vents evenly and mark the locations by driving nails up through the shingles photo 1.
It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.
Different types of loft ventilation.
Loft vent trays or rafter trays are often used to keep an air gap between the underside of the roof and the insulation too.
Running vents which run the full length of the soffit boards.
These are typically installed at the time of construction.
If your roof peak runs parallel to the street put them on the backside where they ll be less prominent.
When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.
This means insulation can be brought forward to the very edges of the plasterboard or cavity insulation safe in the knowledge an air gap will be maintained and air will be channeled up and over the insulation rather than through it.
Spray polyurethane foam will provide thermal insulation that will minimize air infiltration which can help to save on heating and cooling costs within the indoor environment.
This is my video on how to cure condensation and mould in the home.
Loft ventilation comes in many forms but the most common in the uk and ireland are eaves vents and tile vents.
Place all the roof vents on the same side of the roof.