Believe it or not I used no roofing nails to put my roof on ,I used a staple gun....when I put my roof on I put three to four fasteners per shingle....depends on how your roof was made ...oriented strand board or 1x6 ...I would say 1 1/4" nails.....but when I did mine I took off all the old roofing materials(four layers)and then started with fresh drip edge/tar paper/rubber roof barrier for the edge of the roof line...and tar/seam sealer.....I would suggest watching a video either from expert village or this old house ...a picture(video) is worth a thousand words...later
