It is why more often than not you see very steep roofs in areas of america that see lots of rain and snow.
Why do steeper roofs last longer.
A tile roof built using today s standards and guidelines should last a minimum of 15 years with most lasting up to 30 years.
A ribbed metal panel roofing system featuring concealed fasteners will offer a longer lifespan ranging from 30 to 50 years depending on the environment.
The first number in the pitch relates to the rise of the roof in inches.
The roof s pitch is an important factor in determining roof cost for two reasons.
Metal roofs such as aluminum or steel shingles can last for 50 years and often longer while copper and zinc roofs can often last well over 100 years.
First a very steep roof typically recognized as anything that s more than 6 12 pitch is generally considered not walkable and requires greater staging safety and labor to complete the roof properly.
Because water runs off the roof more easily the roof covering will dry faster.
Most residential roofs range from 3 12 to 20 12 or steeper.
However a number of other variables will influence the life expectancy of a roof more significantly than the pitch.
All that space under a steep roof pitch is good for more than just air.
There are a lot of determining factors such as environmental and what underlayment is used.
A steep roof encourages the development of larger attic spaces that are great for seasonal or long term storage.
And during the hottest part of the year when the sun is higher overhead a steeper roof will absorb less solar radiation than a flatter roof.
This means that a typical metal roof will last about 3 7 times longer than a typical asphalt shingles roof which usually needs to replaced every 12 17 years.
Steep roofs react better to inclement weather.
However very shallow roofs can be considered pitched as well.
From a professional standpoint a steep roof is also a lot easier to check for any warning signs without having to pull out the ladder.
There are limits however since some materials will.
Those with a steeper pitch are considered steep sloped roofs.
Steep pitch roofs last longer.
The pitch of a roof has an impact on its lifespan.
If you think of basic geometry a flat roof receives a much bigger hit to inclement weather versus a pitched roof.
While clay tiles are available in a host of earthy colors this roofing is best known for its bold terracotta tones extremely popular in the southwest.
With proper installation you can expect a 25 to 40 years lifespan from a ribbed metal roof with exposed fasteners.
Ribbed panels can be a good option for a steeper gable style roof.
These roofs are sometimes referred to as low slope roofs.
