Metal roofing installed over shingles has become a popular choice for homeowners seeking durability, energy efficiency, and a cost-effective way to upgrade their roofs. This installation method involves placing metal panels or sheets directly on top of an existing shingle roof rather than removing the shingles beforehand. Let’s take a look at some of the reasons why this could be a great option for you!
Benefits of Metal Roofing Installed Over Shingles
Installing metal roofing over shingles can save on labor and disposal costs associated with removing the old roof, making it a more budget-friendly option.
It’s a quicker installation process compared to removing shingles, preparing the roof deck, and then installing the metal roofing.
The extra layer provided by the existing shingles can offer some additional insulation, contributing to better energy efficiency.
When properly installed with appropriate underlayment, the metal roofing can act as an additional protective layer, enhancing waterproofing.
Things to Consider When Installing Metal Roofing Over Shingles
Adding another layer of roofing can increase the weight on the structure. Ensure that the building’s structure can support the combined weight of the new metal roof and the existing shingles. Typically, Tuff-rib is installed over shingles due to their lighter weight.
The existing shingles must be in good condition without any significant damage or irregularities. Proper preparation of the surface is crucial to ensure a smooth and even installation.
Ventilation and Condensation
Adequate ventilation between the old shingles and new metal roofing is essential to prevent moisture buildup and potential condensation issues.
Check with the manufacturer or installer regarding warranty specifications. Some warranties might be affected if the metal roofing is installed over an existing layer of shingles.
A thorough inspection of the existing roof is performed to ensure it’s suitable for the new installation. Choose a qualified and licensed roofing contractor so no existing damage is overlooked.
Any necessary repairs to the existing roof, such as fixing damaged shingles or addressing structural issues, are completed.
A protective underlayment, such as felt or synthetic material, is installed over the shingles to serve as a moisture barrier and protect against potential abrasion. JD Metals offers an array of underlayment and insulation products.
Metal Roof Installation
Metal panels or sheets are then installed over the prepared surface using appropriate fastening methods and techniques.
Trimming and Finishing
The edges and any necessary areas are trimmed, and finishing touches are added to ensure a neat and professional appearance.
Before installing metal over shingles, it’s essential to consult with a professional roofing contractor to evaluate whether this method is suitable for your specific roof and to ensure proper installation for long-term durability and performance.
Our team here at JD Metals has the materials and resources you need for any metal roofing project. Contact us today!
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