The primary reason is a fear of having the building collapse under a heavy snow load.
Picture of left slope of roof.
A mansard roof also known as a french roof is a four sided roof with a double slope on each side that meet forming a low pitched roof.
The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering.
The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.
Usages vary slightly from region to region or from one builder or architect to another.
Our approach in north america is to use a metal roof with a steep slope that will allow the snow and ice to slide off.
Open valleys have metal flashing to protect this critical area of the roof.
Front gable roofs have the gable in the front of the house.
The gable is the triangular siding area formed by the shape of the roof.
When matched to the angle and proportions of other rooflines on the house your gable roof will add visual interest and character to the home making the addition look like an asset that belongs with the house.
Rather than a single slope a gable roof consists of two slopes that meet at a peak running down the middle of the roof.
The sides can either be flat or curved depending on the style.
Roof terminology is also not rigidly defined.
White screen use this digital pitch finder to find roof slope steepness by laying your device.
As i design roofs today in ski resort areas i use one of the above types of roofs and plan to keep the snow on.
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The lower slope is much steeper than the upper.
Photo by de agostini getty images the most popular roof style may be the side gable because it s one of the easiest to build.
Why do we design this way.
Roof shapes differ greatly from region to region.
Mansard roofs can help create a great deal of extra living space.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
See more ideas about modern house house house design.
Camera mode use this digital pitch finder to find roof slope steepness without ever leaving the ground.
Using the space as a full.
The gables on this house face the sides so the slope of the roof is in the front and back.
The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak.
Documentation take pictures with or without slope reading embedded then email.