Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.
Rake angle roof.
Roof rake boards are installed in different widths based on the surface being covered.
Angles are secondary steel framing members most often used to fasten panels to at the low end of walls eave or rake as well as the upper end of rake walls.
One by 2 inch rake boards often cover the exposed top edge of the siding when there also is an eave overhang on the gable end.
The rake of a roof is the outer edge that runs from the eave to the ridge or peak of the roof.
The avalanche roof rake is by far our favorite.
It is typically perpendicular to the eave.
With a smart design it cuts and removes tons of snow fast effective and in a neat way without damaging the shingles.
The rake is lightweight ergonomic designed with wheels to protect the shingles.
Roof pitch is a term describing how steep or flat your roof slope is.
Roof pitch angle and slope factor charts.
For the low end of walls fastening is most commonly into concrete using concrete screws wedge anchors or bolts.
The combination of two numbers are used to display or show the roof pitch.