However it is based upon experience with tens of thousands of installations over many years.
Ways to install metal roofing.
My answer often surprises people.
Step 1 cut the panels to the desired length.
Paint or prime cut edges to prevent rust.
A good metal roof starts with the right materials.
The main benefit of doing it this way is that it is the fastest way to install a new metal roof over a shingle roof.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Some panels have pre drilled holes.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
Most panels come up to 32 feet 9 8 m in length.
This means that your vertical lines are all running square to your eave.
When you re installing a metal roofing panel the first thing that you want to do is make sure you re starting square.
Angle grinder 1 x research source the fastest option.
2 install underlayment right over the shingles before installing the metal roof the second way to install a metal roof over a shingle roof is by applying an approved underlayment right over the old shingle roof.
If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel.
Wear hearing and eye protection.
Metal roofing 101 diy steel roofing installation over shingles subscribe.
Ladder or scaffolding tall enough to reach the roof jigsaw or power metal shears.
It s important to start square because if the first panel is tilted a little bit all the panels that come after are going to be tilted as well.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.
Before you install metal roofing repair any damage to the wood under the shingles.
Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run.
Drill and full assortment of drill bits.
I frequently am asked whether homeowners and contractors should remove roof shingles from a home s roof before a new metal roof is installed.
Install the roofing screws vertically along each rib in the panel.
Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof line.
1 inch roofing nails.
Steel panels rectangles or squares staple gun.