How To Install Corrugated Roofing Over Shingles

3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof.

How to install corrugated roofing over shingles.

If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. How to install a metal roof over shingles. We discuss the nesting method which helps minimize an uneven appear. Use a starter strip or cut pieces for a starter course.

Work up from the initial row starting at the lower corner in a diagonal pattern staggering the shingles to prevent gaps. Install your metal edging around the perimeter of your roof. If yours do not then you will need to drill holes. Attach with nails along the top edge of the strip.

Use tin shears to cut gaps for pipes and exhaust vents. Some panels have pre drilled holes. Overlap the rises and dips if using corrugated sheets or lay flat sheeting with a slight vertical overlap. As long as the plywood under the shingle roof is in good condition this way can provide many benefits.

You will need to lay some 1 by 4 inch pine boards lengthwise every two feet on your roof. The metal used for the roof can be tin copper aluminum or steel. In terms of performance many homeowners choose a steel roof making it the most popular option when it comes to creating a metal roof over existing shingles. Screw the first sheet in the center as well as the edges.

Screw the metal sheets into the slat board with a wood screw every 2 feet along the edges. In a standing seam roof long single panels run vertically all the way from the eave to the ridge. Installing corrugated roofing 1. Make a slat board base on top of the shingles.

Install the metal edging. Step 6 install trim. This is by far the most common way to install a metal roof. Pre drill holes on the ridges.

Lay the starter row of metal shingles at the drip edge and affix to the roof with metal roofing nails. Cut the panels to the desired length. Most metal shingles will be attached to the roof using metal shingle. Most panels come up to 32 feet 9 8 m in length.

Installing metal roofing over shingles is the best solution. Rip cut the starter strip or starter pieces so that they butt up against the second course of existing shingles and are even with the front edge of the existing roofing.