Many house owners who have asphalt roof shingles installed in their homes wonder can they install metal roofing over shingles? The short answer to this question is yes. While asphalt roof shingles provide great layering of the roof, metal roofs are more durable and are aesthetically pleasing. They have several advantages over shingles.
However, installing metal roofing over shingles is not easy as it seems, and people often make some common mistakes that can ruin their metal roofing. To save people from these mistakes, today, we are going to talk about how to install metal roofing over shingles.
How to install metal roofing over shingles: Important things
While there is absolutely no doubt that metal roofing can be installed over shingles, there are some important things that you should consider before installing them.
·Check with your local building and zoning department
Before getting your metal roof installed over your asphalt shingles, make sure to contact your local building and zoning department. Some local building and zoning departments only allow residents to place metal roofing over a single or double layer of shingle roofing.
Some local building and zoning departments can also deny you that you get metal roofing installed over shingles. Moreover, there are many types of shingles, including 3-tab shingles and dimensional shingles. The zoning department might allow you to lay your metal roofing over-dimensional shingles, but not for 3-tab shingles.
·Thoroughly inspect your roof.
You don’t need your new metal roofing to be damaged, and that is why it is necessary that you should thoroughly inspect your roof for any cracks, and leaks, or any sign of damage. If your existing roof has any cracks, and leaks then it is recommended that you should consider fixing the first.
·Hire a professional
As mentioned earlier that installing metal roofing is not easy as it seems. Therefore, the first step that you should always follow is hiring a roofing professional. Roofing professionals will effectively install your metal roofing over your existing shingles.
Integris Roofing can be the best-recommended choice for all your roofing installation needs.
·Look out for sagging decking.
As shingles are not very durable, over time, they can cause decking of your roof to become saggy, and laying new metal roofing over this type of roof is usually not recommended. Hence, before you plan to get a metal roof installed over your existing shingles, make sure that the problem of sagging decking is properly solved.
How to install metal roofing over shingles: Some effective ways
Numerous ways there through which you can install metal roofing over asphalt shingles. To know how to install metal roofing over shingles, you must know the below-specified ways.
1.Apply an underlayment above the existing shingles
The first method is one of the fastest methods through which you can install your metal roofing over shingles. In this method, an approved underlayment is applied to the existing shingles without tearing off the existing shingles.
Although this method is cheap, it certainly is not the best method because of the expansion and contraction factor of the shingles. In addition to this, as there’s an extra layer of existing shingles underneath your new metal roof, this method does not provide you with the flattest roof surface.
This method is deemed convenient by many homeowners, but installing a metal roof above the old shingles can cause a metal roof to be worn out in a couple of years. This happens because the underneath layer of shingles is always scratching the metallic roof.
You can hire Integris roofing if you are looking for some professional help to follow the procedure of roof installation.
2.Remove the existing shingles.
The next method through which you can install your metal roofing over shingles is that you can remove the existing shingles and then place your new metal roofing in place of that.
You may have heard that not tearing your existing shingles will save you some cost, and it will be beneficial for you in the long run. However, this is not recommended, as, over time, shingles tend to expand and contract, which can cause your metal roofing to be damaged.
Moreover, by removing shingles, you would be able to investigate your roof thoroughly.
3.Installing 1×4 purlins
This is another method through which you can install a metal roof over shingles. Although this method is the most expensive, it is the most effective and durable method. Many professionals tend to use this method to install a metal roof over asphalt shingles.
In this method, 1×4 purlins are installed above the shingles before installing a new metal roof. Moreover, this method provides the flattest roof surface, which means that your roof looks aesthetically pleasing.
Installing 1×4 purlins throughout the shingles adds more insulation to the roof, and your metal roof remains corrosion-free and lasts long.
Make sure that you choose the most effective methods of installing a new metal roof over your shingles.
Benefits of metal roof:
People might wonder that why they should install a metal roof over their asphalt shingle in the first place. There are numerous benefits of installing metal roofs that would encourage them to install a metal roof over shingles. Some of the most effective ones are specified below.
This is no doubt that metal is one of the strongest and most durable elements in the world that can last way longer than asphalt shingles. Metal roofs can withstand harsh weather such as heavy rain, snow, and high winds. Hence, by installing a metal roof over your shingles, you will increase the lifespan of your roof.
·Cost-effective (long run)
Although installing a metal roof can be costly at first, but because of a metal roof’s durability, you would not need to replace it more frequently. It will save you a ton of replacing costs and will be much more cost-effective in the long run.
·Keeps your home cool
A metallic roof reflects the sun’s heat, which causes your home to remain cool.
Integris roofing can help you get all these benefits because we have professional staff who will work hard to give you quality results.
The above-specified are some of the ways about how you can install a metal roof over asphalt shingles. Make sure to hire a professional before considering installing a metal roof over shingles.