Metal Roof Over Shingles Or Not

The low weight of metal roofing encourages its installation over old shingles.

Metal roof over shingles or not.

Installing metal roofing over shingles is the best solution. Advantages of metal roofs over shingles. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof. Common problems with shingle roofs.

The second way to install a metal roof over a shingle roof is with the use of purlins or battens. Even though you might be content with a fine. Choosing to install a metal roof this way can save you some dough and garner all of the benefits of a metal roof in the humid climate of florida. When it comes to your roof you need to have the best quality materials for it to be kept in top shape.

Additionally the design of many metal roofs especially the heavier shingle profile metal roofs encourages this practice as well. It provides a solid flat surface to attach the new metal roof to it creates an air gap between the back of the metal and the shingle roof which allows for airflow. This method has its benefits as well. Now there are metal shingles and panels that imitate materials like slate tile wood shake and even asphalt.

However metal roofing is surging in popularity as more aesthetic options become available. Metal roofs generally can run from 120 to 900 per 100 square feet one 10 foot by 10 foot area or a square of material while asphalt shingles will be between 100 and 200 per 100 square. Adding additional layers of insulation can solve this problem but it will increase installation costs. Metal roofs over shingles will also provide an extra layer covering your home helping to further insulate it.

This can be a nuisance for homeowners. 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. The purlins are screwed or nailed down to the roof deck depending on how the metal roofing manufacturer has testing for their roofing panels and then the metal is installed to the purlins. A metal roof can be installed over a shingle roof but you ll need to make sure the plywood under your shingle roof is in good enough shape to handle a new metal roof over top.

Unlike most roofing materials metal roofs can be noisy especially when it rains or hails. By placing metal roofing over shingles you can save in the labor costs of ripping them off while also preventing them from being thrown into landfills. Disadvantages of metal roofs. I do feel that in all cases underayment should be installed first over the old shingles.

The metal used for the roof can be tin copper aluminum or steel. A shingle style roof is the most popular choice.