Metal roofs on the other hand are considered a more sustainable alternative for a number of reasons.
Purpose of a metal roof.
Although the initial cost of a metal roof is more than traditional asphalt so is its lifespan.
Metal roof materials have been around for hundreds of years but they are now becoming more popular than ever before.
This purpose is necessary in every part of the world as the roof provides shelter against something as basic as bright sunshine.
Metal roofs can last a lifetime.
Standing seam metal roofing is defined as a concealed fastener metal panel system that features vertical legs and a broad flat area between the two legs.
For metal roofing matt risenger recommends a solid roof deck covered with impermeable peel and stick membrane.
Dark surfaces warm in the sun to aid in quickly melting snow.
It s also described as having raised seams or vertical legs that rise above the level of the panel s flat area.
This provides a path to exit for any leaks thru the metal roof but provides little ventilation beneath the metal roofing.
Add to that other changes in weather such as rain snow sleet hail and high winds.
The panels are applied over dense foam insulation to maintain high r values.
On top of this he suggests two options.
A lightweight roof is very useful for large and or old structures as it helps to maintain the overall structural integrity of the building.
One is a layer of plastic fiber mesh about 1 4 thick.
Adding more insulation during installation usually solves this problem but that may increase costs.
There are many benefits to replacing an old roof with metal.
The basic purpose of any roof is to provide protection to persons inside a structure from the elements.
While the life of a metal roof is much longer investing in a metal roof only makes sense if you plan to stay in your home long enough to enjoy the cost benefits.
Longevity energy efficiency and a lower environmental impact are just some of the benefits of choosing a metal roof.
Metal roofing materials that are attached as large panels tend to expand and contract.
Metal roofing is also lightweight creates little stress on the load bearing roof support structures and can be installed on top of an existing roof.
Metal roofs can last 30 to 50 years longer than other roofing materials saving you money in the long term.
One of the biggest benefits is the durability of the materials.