Installing Corrugated Roofing Over Shingles

As long as it s done right and under the right conditions installing new shingles over old ones can last as long and look just as good as a complete re roof.

Installing corrugated roofing over shingles.

Looks just as good and lasts as long. Damaged decking will need to be repaired before you can install any new shingles. Address any existing roof leaks and replace rotten rafters or. Install a layer of roofing felt over the roof before you begin.

Installing steel roofing over existing roofing materials is fairly simple. But roofers can install a vented metal roof that eliminates this potential problem. Steel roofing offers many benefits over slate tiles or asphalt shingles metal roofing is resistant to fire rot and termites manufacturers provide 30 year warranties on metal roofing products. To install corrugated roofing start by cutting your panels to length with an angle grinder.

The metal used for the roof can be tin copper aluminum or steel. Installing metal roofing over shingles is the best solution. Before you begin installing the new shingles be sure to inspect the roof for any damage. Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.

Start from the top of the roof and remove the old shingles along with the flashing underlayment and vents. Installing a new roof over shingles takes less time than tearing off the old roof. Damaged shingles should be removed to check the decking for problems. If you choose to install metal roofing over shingles there are certain things you must keep in mind.

Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses. 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. Inspect the underlying roof sheathing for damage and make any needed repairs. But first here are a few precautions about the underlying material.

Hammer down any large nails that are exposed by the removal. We re going to break them down so you know what to look out for. Install a layer of roofing insulation as recommended by the roofing manufacturer. Before you reshingle a roof read our step by step guide for adding new shingles over old ones.

Installation of metal roofing over shingles. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros. Manufacturers will still. If trapped between the metal roofing and old roofing moisture can build up and cause mold and rot.

Step 3 cover the old shingles.