Go up to the next shingle row, offsetting the shingles horizontally by about six inches so which the tabs are staggered. Just about every three-tab shingle needs four nails, 1 previously mentioned Every tab groove. The nails needs to be inserted three to 4 inches from your shingle’s bottom edge, https://learntomore.com/5-contractors-recommended-in-hinsdale-il-top-experts-for-your-project/