To resist thrust the irc calls for a structural ridge required for any roof with a pitch less than 3 12 or for each pair of rafters to be securely connected to each other by a continuous ceiling joist r802 3 2006 irc.
Roof rake for shallow pitch roof.
Another popular snow roof rake you should check out is this suncast srr2100 24 inch snow shovel roof rake.
Like other suncast products this rake is smartly designed featuring a curved no stick graphite blade to prevent roof damage.
Roof rake boards are installed in different widths based on the surface being covered.
Use larger rake boards such as 1 by 4 inch and 1 by 6 inch when there isn t an eave overhang on the gable end.
However roof pitch is technically measured and defined differently and will not be discussed here.
This horizontal load or thrust can be considerable especially on a low pitched roof.
You ll need some assembly to get this all set and ready for snow raking.
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.
You can measure the roof slope on the bottom side of the roof deck at an easily accessible point such as the rake using a tape measure and simple geometry.
Note that roof pitch is sometimes used in parallel with roof slope.
Shingles often not rated for shallow roofs.