This will result in one wall being higher than the other.
Min roof slope salt box house.
A saltbox roof is similar to a gable roof but has different slopes and or spans for the front and rear sides of the roof.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
To calculate a saltbox roof select saltbox from the roof type dropdown list or select the corresponding button on the toolbar.
Difference use of space.
Importance of a roof pitch.
You could also opt for a pvc flat roofing membrane.
Minimum required roof slope for roofing materials.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Because of the asymmetrical design of the saltbox roof it is a great option for people living in the northern climates where rain and snow are plentiful.
Roofing material or system.
Determine the minimum slope of the roof based on the roofing material.
The unique design allows for the back roof to suffer most of the winter snow while the steep slope allowed for snow to slide off of the roof limiting snow buildup and the potential of the roof failing due to heavy snow loads.
Saltbox houses are common in new england and back in the 18th century housed many famous pioneers and patriots including the second u s.
However rise over run is more efficient and easier to understand for the average diyer.
In 12 0 25 in 12 1 19 built up roof coal tar pitch.
9 46 built up roof asphalt.
Thus a 4 12 pitch would be a 33 slope.
18 43 asphalt shingles with special underlayment requirements 2 in 12.
So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.
You can also divide the rise over run multiply by 100 and get a percentage.
There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12.
This design allows for the snow to be removed easily by either runoff or through the ease of access without valleys and areas where snow and ice can build up.
Builders decided that the saltbox house was one of the most practical choices for the region.
With this unique design to a roof there is one major tradeoff.
The minimum roof pitch is also subject to the standards set forth by the various building codes used in the respective regions.
Minimum required slope x in 12 minimum required slope degrees asphalt shingles.
A 4 12 pitch is around 18 5 degrees but not exactly.