Begin on the left side of the roof working to the right.
How to attach metal roofing to wood.
Most panels come up to 32 feet 9 8 m in length.
Water penetration would defeat the purpose of attaching the sheet metal to the wood in the first place.
Sheet metal can best be attached with roofing nails.
This means that the screw will drill its own hole through the metal roofing panel and into the metal or wood substrate.
Work toward the ridge.
Overlap the edge of the roof by 1 inch.
Some panels have pre drilled holes.
Circular saw 2 x research source slower than angle grinder but follow same step 2 pre drill holes on the ridges.
If yours do not.
Allow for a minimum of 18 inches 46 cm if you need to lap to complete the run.
Continue adding panels until the roof is covered.
The caulking will prevent leaks from developing between the panels.
Step 1 cut the panels to the desired length.
Make sure you overlap each layer by at least 4 inches.
Then cover the entire roof with a layer of insulation and secure it with a staple gun.
Metal roofing is also available in the form of shingles.
When installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before installing the roofing.
Angle grinder 1 x research source the fastest option.
Lay and secure the first metal panel.
Install the first metal panel on the low end of the roof square to the eave.
Instead you can just secure the metal roof directly to the wooden beams cut the roofing felt to fit with a utility knife.
Wear hearing and eye protection.
Paint or prime cut edges to prevent rust.
Attach the roofing felt with roofing staples.
Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails.
Before you install metal roofing repair any damage to the wood under the shingles.
You also need to add.
Next use 1 inch nails to secure some metal edging to the perimeter of the roof.
Snap a vertical chalk line 1 4 inch from the rake edge of the roof using a chalk box.
The roofing felt will lay horizontally along the plywood deck of the roof.
You may need to cut panels to fit angles using a circular saw with a metal saw blade.
Place the first metal panel so that it aligns with the eaves and use the self tapping screws to attach it securely to the rafters.
Put caulking along the edge of the panel and place the next panel so that it slightly overlaps the first one.
These nails are specially designed to go through sheet metal and into wood and provide a seal that is hard for water to penetrate.