How To Install Metal Roofing Over Shingles - Youtube. There are two primary methods implemented when installing metal roofing over shingles. Next, lay the shingles, working from the lower corner of the roof upward.
5install metal panels or shingles. Measure your roof it is important to get precise measurements of your roofing area to help in determining how much material you will need. Cool outside air travels under the shingles to the vented ridge, pulling out moisture and heat.
First, you will need to install a base for the metal sheeting.
The first is to apply an approved underlayment over the old shingles. How to install a metal roof over existing shingles. Measure your roof it is important to get precise measurements of your roofing area to help in determining how much material you will need. A steel roof is a lifetime investment, lasting 50 years or more if it’s a good one.