Also strong winds can blow rainwater under shingles.
How is a roof installed.
Straight off the bat.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
Continue adding panels until the roof is covered.
This type of roofing is a traditional building material that has been used on residences for hundreds of years.
Metal roofing is also available in the form of.
Shingles are installed in an overlapping fashion to provide complete protection for the plywood vapor barrier and other materials beneath.
When an ice dam forms on a roof usually caused by poor attic insulation ventilation ice and water can work their way up under the shingles and leak back into the house.
Thus at the mid point of the above price range you can expect to pay.
Install the second course just like the first using the guidelines on the underlayment to get the correct overlap.
Next use 1 inch nails to secure some metal edging to the perimeter of the roof.
Install the starter strip which is just a backing for the first visible row of shingles.
It needs to be stated that not all roofs are made the same and not all roofers charge the same prices.
Expect to spend 1 500 to 3 000 to remove your current roof before installing a replacement.
We re going to break them down so you know what to look out for.
Installation of metal roofing over shingles.
A shingle is a piece of a roof cover.
The national average cost to replace a roof is 7 211 with most homeowners spending between 4 707 and 10 460 roof installation cost ranges from 400 to 550 per square depending on the roof size and materials used in reroofing.
Install the panel so that the short lip overlaps the large lip.
Screw the new panel in place as described.
It stops water from getting through to the roof at the gaps between shingles and at the notches between tabs.
That said on average most contractors will charge between 3 50 and 5 50 per square foot or 350 to 550 per square 100 sq ft to install or replace an asphalt shingle roof on a typical house.
But first here are a few precautions about the underlying material.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
If you choose to install metal roofing over shingles there are certain things you must keep in mind.