Nail the vent material to the furring strips.
Fitting a slate roof.
These slate shingles are then trimmed into particular shapes usually punched for nail holes and are then ready to be installed on a roof.
Set out the first second and all the rest of slates on a pitched roof.
Generally speaking 20 degrees is the lowest advisable pitch for a slate roof depending on the size of the slates and how much that the roof is exposed to moderate weather conditions.
The gauge is in fact the same as the margin which is the length of the slate exposed.
As you roll out the underlay keep the bottom edge of the material aligned with the edge of the eave but above any metal or synthetic edging that may cover the borders of the eave.
This step by step video guide by velux shows how to install a velux new generation roof window in a slate roof at standard installation height.
When slating with a shallow pitch a wide slate is highly recommended for maximum side lap or lateral lap side overlaps.
The supplier of the slates should recommend the spacing up the roof between the battens known as the gauge this usually varies according to the size of the slates the pitch of the roof and the degree of exposure.
This is a video showing the fitting of a velux roof window with instructions.
This is a video showing the fitting of a velux roof window with instructions.
You will need longer nails when installing ridge slates over vent material.
In this case 2 5 inch copper roofing nails were used.
Set out the first second and all the rest of slates on a pitched roof.
Install ridge slates and flashings in the same manner as installing slate hips except ridge joints should be caulked.