ASV is critical to reducing energy consumption. Metal roofing can be installed over asphalt shingles if the local building code allows it and there is just a single layer of asphalt shingles on the roof. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); RPS Metal Roofing & Siding, Inc is a manufacturer and distributor of metal roofs. The thermal expansion and contraction of the metal will rub against the shingle granules and the metal will corrode from the underside. 
In contrast, repair or replacement is effortless with symmetrical systems since contractors can simply start the repair or replacement at the specific point of concern. While this condition is purely aesthetic and doesnt affect panel performance, homeowners with a high emphasis on aesthetics may be better suited with a remove and replace approach or a system like our 138T, which we will address a bit later. They did an awesome job with my new roof. If your contractor cant test your deckings integrity or inspect for rotten boards, it could lead to a costly problem down the road. Symmetrical systems (like our 138T) can be installed and replaced in any order. If youre interested in learning more about replacing your shingle roof with metal roof panels, were here to help. Why wouldnt a reputable roofing contractor recommend installing a metal roof over your old asphalt roof? By the end of this article, you'll learn if it's a good idea to install a metal roof over an existing asphalt roof and some warnings about doing so. Consequently, many owners simply tire of the constant expense, mess, and disruption to their business operations. Yes. Want to learn more about the differences between metal roofing and shingles? As long as the new metal roof is properly installed and your local roofing contractor does everything the right way, it can be done without a problem. In contrast, steel shingles are small panels installed in horizontal rows much like other shingles. Lets explore the most common. Our attention to detail and high-quality workmanship you get a new roof that lasts for decades. This layer of protection is critical to prevent the shingles from wearing through the metal panels as they expand and contract over the roofs life. I understand everyone is on a budget, but if youre investing in a metal roof you might as well tear-off your old asphalt roof to avoid this problem. Because we want you to have all the important information about such a big decision, we're going to break it down for you. This makes it a perfect material to be installed right on top of an existing shingle roof. Furthermore, whereas asphalt tends to reflect the suns rays and heat up, metal roofs will deflect the suns UV rays, which can result in up to a 25% decrease in cooling expenses. This isnt just to make your life harder.
Prime Roofing is a residential roofing contractor based in Jacksonville, FL. I had a leak in my roof due to a branch that fell and did some damage. ft.: $125 to $250 Choosing between roof types is a tedious task for many homeowners., Prime Roofing ft.: $75 to $250 Need to speak to an expert?
Luckily, weve developed a quiz to help you find the right roof for you.
The team at Bill Ragan Roofing has been providing the residents of Nashville with high-quality asphalt and metal roofs since 1990. There is less labor involved when you dont tear up the previous roof. Laying metal roofing over existing shingles may save you money on roof replacement, and save you the effort of dismantling the roof, and cut the time it takes to build a new roof in half. Topics: Because these leaks come from two different parts of two different roofs, they will be very hard to track and find. As the most-used roofing type across North America, asphalt strikes a balance between price and durability, with a life expectancy of up to 20. No, you do not have to tear off your shingle roof. Metal roofing can be installed over top of shingles. Located in Welaka, Florida, our company has state-of-the-art manufacturing equipment resulting in fine quality metal roofs for commercial, residential and agricultural use. Asphalt shingles, on the other hand, are usually disposed of in a dump. If one puts too many layers of roofing materials on a home there is a good possibility that the trusses could fall. Over an asphalt roof? Some advantages include: With proper care, metal roofs will last much longer than shingle roofs. First and foremost, it lasts far longer.
Part of the high cost of metal roofs stems from installation best practices. The first is running new underlayment over an existing shingle roof, thus covering the old roof.
Check out case studies on some of our recent recover projects: Whether youre a contractor already working with our team at McElroy Metal or are interested in using our products for your next project. I would recommend this company if you need a new roof. Yes Should repair or replacement become necessary during the roofs life on an asymmetrical system, the same arduous left to right process is required. Quality of materials, workmanship, and price are great. Maintaining the asphalt shingle layer makes the roof more insulated, lowering energy expenses. Is it Possible to Install Metal Roofing Over a Shingle Roof? ft.: $400 to $1,200 Labor cost per 100 sq. It should still be dealt with since it can reduce the life span of your metal roof. Unfortunately, many people shy away from investing in a metal roof due to higher costs. Over an asphalt roof? Your shingle roof does not reflect as much heat as metal will. Also the thinner the metal the more likely will buckle with temperature changes. Roof Replacement | The image above illustrates a general furring strip approach, although, as you might guess, there are numerous variations to this method. This method typically involves less mess than a complete tear-off. A steel roof is a lifetime investment, lasting 50 years or more if its a good one. The type we show here costs about twice as much to have installed as a new asphalt roof. With that in mind, most roofs wont be good candidates because of the wear and tear they go through during their lifespans. A screw-down panel is just what it's called; it's screwed down. Resistance to hail damage: Good For example, one of these crucial materials is the underlayment. Soft or unreliable plywood wont be able to hold the screws and thus your roof could come off during one of Northern Floridas famous afternoon thunderstorms. Without removing the asphalt shingles, you wont be able to notice any rotting or damaged areas. Asphalt roofs typically last 20 to 30 years, depending on the installation and shingle quality. While the weight may not be enough to create difficulties, it is something to think about, especially for roofs that receive a lot of snowfall. This also applies to the durability of your roof. A metal roof also adds curb appeal to a building because they come in a vast variety of styles and colors. In the humid and moist climate of Northern Florida, they can prove a far better option than traditional shingle roofs. Here are some pros and cons. There are three types of asphalt roofs: 3-tab, dimensional, and luxury. Helpful information for contractors, distributors, architects, and building professionals using metal products. Metal roofing offers building owners a way out of the shingle replacement cycle. Here is an actual metal roofing installation projectby Prime Roofing. Additionally, you gain all the benefits of a metal roof. 8 Things to Consider When Selecting the Gauge for Metal Roof and Wall Panels, Pros and Cons of Metal Roof Insulation Options, Metal Roofing: Dead Valley Projects and Warranties, Join our blog subscribers and get the latest news, How to Install Metal Roofing Over Shingles, Specialty Panels - Shingles/Tiles/Stone Coated, Standing Seam - Insulated Metal Roof Panel, check out this white paper by the Metal Construction Association, Tired of Replacing Your Shingle Roof? Yes Resistance to hail damage: Good Youll be able to save up to 25% in labor costs by not tearing off your old asphalt roof, installing new underlayment, or the fees to dump the old roofing materials. Without the extra barrier, the wood can wear out. 
Commercial. 
There are a couple of additional considerations with the direct attachment approach. Once youve decided to stop the constant churn of shingle replacement and use metal panels instead, its time to determine the specific installation method you plan to use. Now that the general questions have been covered lets go over the more specific ones that people frequently ask. There are a few downsides involved with leaving the old shingles in place. In Florida, some municipal building codes state that you cannot have more than two layers of roofing materials on a single residential house. After reading this, do you still want to roof over your old asphalt roof with a metal roof? In this scenario, wood purlins or sub-girts are used as furring strips on the old roof and attached to the structure below. Ask how their installation will address and prevent issues with condensation.
Metal roofing typically requires a more significant up-front cost than new shingles, but metal roofing can last 50+ years with minimal maintenance. The short answer is yes, youre able to roof over your old asphalt roof with a new metal roof under the right circumstances. How to Install and When to Replace Roof Tarps, Do Not Sell My Personal Information CA Residents. I would highly recommend Affordable Roofing Systems. If you install a metal roof over your asphalt roof, theres no opportunity to inspect your roofs decking. Metal roofing will last upwards of 50 years if properly maintained. Luxury style shingles are just as heavily marketed as dimensional but are almost double the price. This framework has three big advantages. Required fields are marked *. What Is the Optimal Temperature for a Greenhouse? A metal roof is installed with screws that need something to hold onto. 9511 N Trask St Suite A Tampa, Florida 33624, Difficulty checking the framework and deck, Having to replace your new metal roof due to undetected deck damage, May limit or void manufacturers' warranty. Over an asphalt roof? However, with the added cost of the furring material and installation, the final price can be similar to tear-off. However, I wouldnt recommend it. As mentioned above, there are tradeoffs involved in any decision. After all, tearing off a shingle roof to install a metal roof can incur double the costs. Three layers of roofing are just too heavy for the roof to support. Its your roof systems last line of defense for keeping your decking dry. And, as you can see from the photos, if you pick a good-looking style from the many choices available, your house definitely wont look like a cattle barn. This durability will also protect your home as an added layer in addition to your shingles. Our experienced roofers will answer all your questions and ensure your roof is done right to prevent or mitigate the issues mentioned above. If you want to install steel over asphalt, your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common (and more expensive) standing seam steel. Yes, Material cost per 100 sq. Weight per 100 sq. Before starting with a metal roof installation over existing asphalt shingles, it is essential to evaluate the upsides and downsides of this job. So, if your roof has two layers, it may require a complete tear-off, even though steel is lighter than asphalt. They did an awesome job with my new roof. Customer service, scheduling, and communication were a complete disaster. But some steel shingle manufacturers offer do-it-yourself systems that cost about the same as an installed asphalt roof for those who want to learn how to instal a metal roof on their own. Your current asphalt roof has to be near the end of its lifespan and still lying down pretty flat (no lifted or cracked shingles, blisters, or bumps). You also wont get the proper kind of underlayment specifically designed for a metal roof. Common barrier products include #30 felt, synthetic underlayment, or even thin foil-faced insulation. This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Shingles are available for those who want affordable, genuine slate roofing.
Asphalt shingle disposal necessitates the pricey expenditures of a dumpster rental and disposal costs. Be sure to check your local building codes to find out, or work with a reputable roofing pro. All of the benefits of metal roofing apply whether installed on their own or over shingle roofing. That alone improves the value of the metal roof. The workers were great-knowledgeable, courteous and very efficient. The new metal roof panels are then attached to the framing system. We used Affordable Roofing to replace an old roof and from beginning to finish we were completely satisfied. When this occurs, repair costs and scrap generated can both be significantly higher than what would be anticipated with symmetrical panel systems. But is this a good idea? Be sure you understand how this type of installation affects the warranty on your new metal roof, as some manufacturers may limit or void warranty coverage in these situations. This could not have gone more smoothly. Yes, you can install a metal roof over existing asphalt shingles. All Rights Reserved. This regulation exists for a purpose. Overall, it is up to you the homeowner to decide which installation method is right for you! Certain building codes will only allow you to install metal roofing over one layer of shingles. Received 4 different quotes and they were comparable to competitors. Resistance to hail damage: Very good A metal roof can be installed over a shingle roof, but youll need to make sure the plywood under your shingle roof is in good enough shape to handle a new metal roof over top. Covering your existing asphalt shingles with metal roofing might be worth the expense. Labor cost per 100 sq. For most Americans, the attic is nothing more than an extra storage space for old, The gutter system is designed to direct rainwater through the downspout to a destination away, What are Gable Roofs? Further, the clip design maximizes the systems appearance. Do it yourself? Metal roofs offer the type of longevity and durability not often found in home building materials. Second, its important to note that a barrier between the original shingles and the new metal roof is required for direct attachment projects.