Roof slopes lower than 4 12 tend to perform well with metal roofs which are less prone to leakage and ice dam formation.
Gutters for 12 12 slope in snow country.
Clogged gutters will only accelerate the process of ice damming and over flow when the gutters fill up with ice and snow.
Snow cold and ice can wreak havoc on gutters.
Anything less than 1 12 pitch is a huge mistake in snow prone.
Massive snow suddenly sliding off a roof sometimes kills the unsuspecting caught below it.
It is a specially shaped sheet metal cover for the rain gutters that draws the water around and into the gutter but throws leaves snow and even ice off the edge over the gutter.
The key factors are usually snow loading requirements adequate slope and the use of snow guards when needed.
One very interesting product for snow country is called gutter helmet.
Built in gutters also called box or hidden gutters are actually a type of rain gutter and can replace the latter especially when the conspicuous appearance of the rain gutter is the main issue.
Leaf guard uses the same concept but is built right into the rain gutter.
A minimum slope of 1 inch per foot is recommended in snow country.
In real life constant subfreezing temperatures tend to hinder that process.
Roof pitches of 3 12 4 12 5 12 or 6 12 work best for metal buildings in snow country.
The amount of collected water increases until it spills over the sides of the gutter.
On roof slopes between 4 12 and 6 12 rough textured roofing materials work best.
If these issues are addressed during the design stage and the roofing contractor does his job these systems will almost always perform as intended.
If gutters slope too severely they don t hold water and water could splash over the sides in heavy rain.
Anything over a 6 12 pitch tends to make massive amounts of snow slide off the roof without warning.
As a result ice and snowpack can build up inside the gutters which produce additional weight on the gutter sections and the fasteners that hold them.
Box gutters are valley like troughs at the edges of roofs which are concealed in appearance and don t draw attention from the beauty of the house.
The gutter slope also called the pitch is the amount the gutter tilts down to let rainwater flow out of it.
To keep the snow on your roof from melting make sure your roof is well insulated and that warm air is not escaping.
If gutters don t slope water gathers in them.