If you have an asphalt shingle roof that needs replacing, you may want to consider using metal for this project to get a longer-lasting roof. There is the option to remove the shingles, but you can actually save and improve your home by installing the metal roofing over the shingles. There are some things that you will want to do for this type of installation, such as cut vent holes and build a 2-inch framework to support the new roofing. Here are some tips to help you with installing metal roofing over your existing shingles:
1. Finding Damage And Repairing Decking Before Anything Else
When you have an old shingle roof, there may be many different types of damage beneath shingles. It is important to find areas where you may have roof leaks or damage to decking and repair them before you cover the roof with new roofing. This is to help prevent structural problems and address issues like mold and mildew that can be hidden beneath old shingles. You do not have to do this everywhere, but find obvious damage, and check areas where problems are likely to occur.
2. Cut Ventilation Holes In Roof To Ensure That Your Roof Is Well-Vented
Ventilation of your roof is also important, and when you install metal over the shingles, you will want to make sure that the roof is still well ventilated. To do this, it is a good idea to cut ventilation holes in the roof to allow air to circulate freely. Do this in all the areas where roof vents are to be installed. This will prevent humidity and moisture from being trapped beneath the shingles, which can lead to dry rot problems with the wood framing in your attic.
3. Building A 2-Inch Framework To Keep The Metal Off Shingles And Improve Efficiency
When installing a metal roof over shingles, it is a good idea to build a 2-inch framework to support the new metal roofing. This does two things; one, it creates and air gap beneath the metal to improve ventilation, and two, it also improves the ventilation of the roof. This can be done with 2x4 or 2x2 materials.
Installing the metal over an existing shingle roof can give your energy benefits, as well as a long-lasting roof. If you need help with your project, contact a roofing contractor and talk with them about some of these issues when installing a new metal roof over your shingles.
For roofing contractors, contact a company such as Mid-Miami Roofing, Inc.