There are many correct ways to install a roof on any house. Each and every house design will deffer slightly in the installation process. Here is an excellent animated video example of one that shows some of the preferred methods on key areas of the roof.
Know Your Fastening Systems
Several myths often circulate about metal roofs. One of the most common questions that many people often have about metal roofs is whether they will expand and contract. It is true that metal roofs will expand and contract. This is because metal roofs tend to heat up when the sun rises each morning. During cooler temperatures, the metal will contract. Read More
In the past, this could place a tremendous amount of pressure on the roof and ultimately cause it to fail. Fortunately, new metal roof systems have been designed to combat these problems. Metal roofs are capable of contracting quite significantly, which can place a tremendous amount of stress on fasteners and seams. In fact, without addressing these challenges, such problems can result in roof leaks and the need for expensive repairs.
Thermal expansion and contraction is a significant concern when it comes to a metal roofing system. It is most significant in situations in which there are standing-seam systems due to the length of the long panels. This precise amount of thermal movement depends upon several factors, including the amount of temperature change and the coefficient of expansion that is unique to the type of metal that is used in the roof system.
In areas where the amount of temperature change is substantial, the amount of thermal expansion can result in screws being pulled out of the metal and cause elongated holes in panels. In addition, thermal expansion can cause metal panels to bend or shift.
Therefore, it is imperative for a roofing contractor to ensure proper design of the entire metal roofing system. Hidden clips and other types of attachment techniques are frequently used to account for thermal movement while preventing an updraft.
In choosing fasteners for a metal roof, the installer will also need to ensure that the fasteners used are compatible with the type of metal used in the roof. This is crucial as the fastener should not react to the metal in the roof. When a metal panel is also screwed into a metal roof, there will usually be less movement.
The color of the metal roof that you choose may also play a role in the amount of expansion and contraction that occurs. For instance, a darker metal roof panel may be more prone to expanding and contracting.
When installed properly, a metal roof is actually an excellent choice for holding up to weather changes regardless of where you may live. This is because the expanding and contracting of the roof will not be at risk for slotting or any other problems that might eventually result in leaks.
Choose the Right Paint System
Choosing the right type of paint for your new metal roof may be just as important as the type of metal you choose for your roof, if not more.
Remember, your new metal roof is a long-term investment that will pay itself over many times over the course of its life. Why not make sure you have a beautiful painted roof while keeping it in pristine condition for years to come.
When it comes to paint for metal roofing, the most widely used are polyester, silicone Modified polyester, and Fluoropolymer or PVPF, also known as Kynar 500®.
When it comes to which one is the best overall paint, you first must know the properties and costs of each type. Read More
Polyester WAS the paint of choice about 30-40 years ago. While it is scratch resistant and the most cost-effective choice of the three, you must remember you are making a long-term investment. As the adage goes, you get what you pay for and that is certainly the case for polyester paint.
Since there is no silicone in the composition of the paint, it will be very susceptible to chalking. The absence of silicone will also mean that the new shiny look of your roof will fade away early on losing its aesthetic appeal.
One of the benefits of getting a metal roof is minimal maintenance to keep it in optimal condition. Choosing a polyester based paint would defeat the purpose.
Silicone Modified Polyester (AKA SMP)
Silicone Modified Polyester like its name implies, contains usually around 30% silicone in its composition meaning most of the issues with standard polyester paints are no longer an issue. SMP paints keep their initial glossiness much longer and is able to resist things like chalking and fading much better.
Although solving some of the issues polyester paints can cause there are also some issues with SMP paints that need to be addressed.
The first issues have to do with the manufacturing of the SMP paints. Depending on the manufacturer, they may use different types of ingredients to colour the paint. Ceramic based pigments are much better than its organic alternatives.
Secondly, since the paint is very hard, SMP paints can crack during the production of the metal shingles. As soon as the paints crack, the actual metal will be prone to rusting due to the elements.
Although not the worst choice, silicone modified polyester paints do leave a lot to be desired.
Fluoropolymer/PVPF (AKA Kynar 500)
This is the industry standard when it comes to paints for metal roofs. Kynar performs far better than any other paint system on the market. Even though it is the most expensive paint money can buy, you will get tremendous value if you choose Kynar.
It outperforms anything that SMP paints can do as well as do what SMPs cannot.
Its is a much more flexible paint than SMP paints meaning that it will not crack during the shingle making process eliminating any issues if cracking. It also offers the best protection against chalking and fading. It will also keep it glossiness and shine better than any other paint type on the market.
When you decided to choose a metal roof over the more traditional roofing systems, one factor might have been the longevity of these roofs.
Although more expensive up front than its counterparts, you will be saving thousands in the long-term in maintenance, and energy costs. You might as well just get the best roof possible.
A paint that is strong and can last just as long as your metal roof should be your choice. Kynar paint systems are worth your hard-earned money. There are many things in life you need to worry about, don’t make your roof one of them.
To learn more about the difference between Polyester based paint systems and PVDF click HERE.
For more information on Kynar 500 click HERE
Get to Know About Ventilation
Ventilation is very important when it comes to your roof regardless of building material. Metal roofing is no exception. Having a properly ventilated roof not only keeps the temperature of your home at the ideal level, it is also vital in order to keep your home at its best possible condition. Here are three reasons why good ventilation is crucial for any home.
It Keeps Your Home Energy Efficient
During those hot days of summer, a well-ventilated home will vent out all the heat that is radiating from your attic drastically reducing the cost of your air conditioner. While having a roof that is reflective helps with reducing the heat that comes in you home, having good ventilation that quickly gets rid of any heat that is in your attic is just as important. Read More
A fair amount of moisture is made inside the livable parts of your home. Usually this moisture is made by doing laundry, bathing, cooking and houseplants. All the moisture that is made in the livable part of your house rises towards the attic. If the moisture laden is warm enough when it touches a cold surface, it will condense into water. This condensation can lead to some very unhealthy situations for your home. The growth of mildew, mold and other forms biological organisms can occur when there is condensation in your attic. An attic that is well-vented will also keep the insulation in the attic dry increasing the longevity of its effectiveness.
Lowering the Chance of Ice Dams
For roofs that are susceptible to winter climates, having good ventilation on it can help minimize the probability of forming ice dams. Ice dams happen when the warm air from the livable area of your home touches the roof deck causing the snow to melt. When the melted snow goes down the roof it refreezes over your home’s cold overhangs, creating hazardous ice dams that have the potential to leak melted snow into your home. With proper ventilation in you home, you can keep your attic around the same temperature as the outside preventing the snow on your roof from melting.
For more information on ice dams, click here.
Intake and exhaust vents.
For the most part, you generally want to have the same amount of intake as exhaust vents. If for some reason you cannot have the same amount, you then want to have slightly more intake. This will create a pressurized system pushing out the unwanted air.
There are many correct ways to install a roof on any house. Each and every house design will deffer slightly in the installation process. Here is the installation manual that shows some of the preferred methods on key areas of the roof. To view our installation manual, click here.
Know Your Roof Types
Roofs do a lot more than just serving the most basic practical purpose of protecting a house and its occupants from the outside elements. For instance, a roof’s shape plays a major role in defining the overall look and style of a house. Roofs can also provide additional living space, as well as make your home more resilient, energy efficient, and weather-proof.
This definitive guide to roof architecture and styles will help you understand and identify the best roof shape for your home, shed, garage, or a place of business.
Download the PDF here.
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“Our Premium Metal Roofing System is one fifth the weight of conventional shingles meaning that it can be installed on top of the existing roof. Snow load is commonly ~ 10 psf **. With a metal roof – snow load is virtually eliminated. Additionally, not having to remove asphalt shingles saves the homeowner removal and disposal fees while not contributing to landfill sites incurring the production of destructive greenhouse gasses.”