You may be excited to jump in the metal roofing wagon and get the energy-saving benefits of metal roofs roofers are always talking about. However, replacing your roof with metal can result in higher costs than expected, especially if you weren’t preparing to upgrade your roof, which can stress you out. If you want to upgrade your roof but are unsure if you can afford a replacement, re-roofing is always an option to consider.
Re-roofing consists of putting the new roofing material layer on top of the existing roof, which reduces the material and labor costs as contractors don’t have to tear off the old roof and can seize the existing roof structure. However, while re-roofing can be a great option to get durable and stylish metal roofing options without breaking the bank, it’s not always possible to carry out due to building codes and safety limitations.
The ones who determine whether or not you can re-roof with metal are your state and local building codes. While some states and localities are not strict on this matter, others dictate that you should always remove the existing roof before a new installation. Hence, if you were asking if you can put your new metal roof over your asphalt shingles, your building authorities are the ones to turn to before you can reap the benefits of metal roofing without replacing your roof.
The state code claims that a new metal roofing can be installed on your existing roof only if it meets the following conditions:
- Contractors follow the manufacturer’s instructions for installation.
- There’s no water damage on the roof.
- The roof doesn’t have clay, slate, concrete, or asbestos-related tiles.
- The existing shingles are lying flat, without bucks or severe damage.
- There is only one layer of existing roofing material. Two or more layers rule out permission to re-roof.
The short answer is “Yes,” you can put your new metal roofing over existing shingles as long as the conditions are met. However, these regulations may vary from county to county, so it’s always better to consult with your local authorities or experienced roofing contractors if you can re-roof with metal in your area to ensure you get metal roofing solutions for long-lasting protection without getting problems in the future.
If your roof conditions don’t meet the requirements for re-roofing, then it’s time to replace your roof. It may cost you more upfront, but getting a new roof will ensure your safety and allow you to enjoy the benefits of metal roofing for longer, as the roof is freshly installed and won’t have as many problems down the road as an older roofing system.
Even if your roof meets all the requirements disposed of by the state, there are still other factors to consider before starting your re-roofing project. The condition of your roof, its maximum dead load, and the installation methods can also impact the success of your re-roofing and whether or not you get durable and stylish metal roofing options to protect your property.
The roofing material is just one component of your roofing system. You should also ensure the rest is in good condition to support the added weight and provide structural safety for years. Hence, contractors should assess the conditions of the roof deck, underlayment, insulation flashings, and pipe vents to determine whether you can install a new roof and enjoy the benefits of metal roofing.
If any other component of your roofing system has damage, you’ll have to repair or replace it to ensure the roof is structurally sound after installing the new roofing material.
Most metal roofing solutions for long-lasting protection are lightweight, meaning they generally can be installed over an existing roof without compromising its structural integrity. However, it’s always better to double-check how much weight your roof can withstand without putting the roof’s safety at risk.
There are typically two installation methods for re-roofing with metal: directly over the shingles or attachment into furring strips. The furring strip system features wood purlins that create a furring frame on the shingles or underlayment to attach the metal panels. This method allows more ventilation space on the roof, leading to the energy-saving benefits of metal roofs. Still, the labor and material costs for the furring can be similar to a complete replacement.
On the other hand, installing metal panels or shingles over asphalt shingles results in less cost and mess. However, some metals, such as steel, can act like a mirror and reflect the inconsistencies in shingles and decking onto the new metal roof. Though this issue is purely aesthetic and doesn’t compromise the overall benefits of metal roofing, if visual appeal is a priority, you better look for other approaches.
We’re certified roofing contractors from top manufacturing companies in the country, such as Duro-Last, Atlas Roofing, and Mule-Hide, as well as accredited inspectors from HAAG, the global forensic, engineering, and building consulting company. Our skills, knowledge, and professionalism are more than double-checked to ensure we help you get metal roofing solutions for long-lasting protection that fit your needs and wishes.
Contact us at (252) 717-7176 and schedule your appointment today!
