This is non-negotiable. The (flat metal) goes along the eaves overhanging the drip edge by 1/2". Nail it every 6-8". This gives the first panel’s bottom lock something to grab.
Position the EDCO Style D drip edge flush against the fascia. It should be under the underlayment at the eaves but over the underlayment at the rakes. 3. Essential Tools edco arrowline metal roofing installation
The first panel sets the alignment for the entire roof. If the first panel is askew, every subsequent panel will compound the error. This is non-negotiable
Store panels in a dry, covered area and carry only one carton at a time onto the roof to prevent damage. 2. Underlayment and Drip Edge edco arrowline metal roofing installation