Better steel shingle systems like the one shown install over a framework of 2x2s.
How to install metal roof shingles.
Metal roofing sheets have to be installed one at a time.
Install metal panels or shingles 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.
Install new flashing metal flashing is often called drip edge along the bottom of the roof near your gutters.
A benefit to doing it this way is that you can see if there is any rotten plywood that needs to be replaced before installing the new roof.
Starter shingles should be laid at the drip edge nailed down with roofing nails.
This framework has three big advantages.
In a standing seam roof long single panels run vertically all the way from the eave to the ridge.
Next lay the shingles working from the lower corner of the roof upward.
Install the roofing screws vertically along each rib in the panel.
Fasten the shingles to the roof using the nail clips designed specifically for metal shingles.
Place a sheet from top to bottom on a section of the roof.
You should start your metal shingles installation with half a shingle or in accordance with your metal shingles installation manual which should be system specific starting from the left of the starter flashing or gable.
Install metal roofing sheets.
Nail the drip edge in place using your hammer and roofing nails.
Experts recommend that you work diagonally and raising each row of shingles gradually.
1 remove the shingles before installing the metal roof the first way to install a metal roof over shingles is by completely removing the old shingles before installing the new metal roof.
First because the frame is screwed directly to the rafters and the interlocked shingles are screwed to the frame the roof can withstand winds of up to 120 mph without damage.
Use 1 4 inch metal wood screws to attach the metal sheets to the wood slat board base.