Metal roofing can withstand the test of time. Not only is it durable, but it looks surprisingly good too. This is because, unlike most other roofing types, metal roofing comes in a range of styles and colors to match the exterior of your home. 

Although metal roofs look amazing once fitted correctly, installing a metal roof is not always as easy as you would think. There are lots of things you need to consider before you start, such as which type of metal to use, what size roof you require, and where to place the screws on metal roofing.

In this article, we are going to discuss where to place the screws on metal roofing. Metal roofing installation necessitates special metal roof screws that come complete with a metal washer and a neoprene seal on the base of the washer. 

Metal roof screws must be installed in the correct location to ensure that the washer is tightly sealed over the hole in the metal. If you are planning on installing a metal roof on your property, and you want to know where to place screws on metal roofing, then keep reading below:

  1. Use the Right Equipment

Before you begin installing a metal roof, you will need to make sure you have the right equipment to complete the job. Some of the equipment you need includes:

  • Screws – these will be used to anchor the shingles of panels to the property or structure. Metal self-tapping screws with wafer-thin washers are a brilliant option. These screws are more likely to ensure a tight seal. Although many people believe that nails are just as good as screws, this is not the case. Screws do not break or bend like nails when exposed to heat. They also do not work themselves loose like nails.
  • Drill and drill bits – these will be needed to screw the screws in place
  • Tape measure and laser level – this will help you to ensure that all your screws are lined up and equally spaced.
  • Chalk – to mark where you are going to place each screw
  1. Be Organized

Whether you are building a shed, installing a roof, or fitting new windows in your home, it is important to always keep your work area clean and tidy. Do not keep screws and nails here and there; instead, have a box for each. For health and safety reasons, it is also important to ensure that electrical equipment, such as drills, are turned off and unplugged until needed. This will prevent accidents from occurring. 

  1. Repair Any Damage Before Attaching Your Roof

Before attaching a new roof to your property, it is important to repair any existing damage. Fixing problems now will save you a lot of time and money in the long term. 

  1. Creating Holes in Your Metal Roof

Lots of people think that they have to pre-drill holes in their metal roof sheet before installation; however, this is not always correct. If you choose to use self-drilling screws, like the ones we mentioned above, then you will not need to pre-drill your roof panels. Instead, the screws will drill their own hole through the metal roofing panel and into the wood substrate below.

This means that you do not need to pre-drill holes. In addition, if your panel is being fitted on top of metal purlins, the space of the purlins may make it difficult to pre-drill the sheets in advance. To do this, you would have to measure each panel and drill each hole in the location of the metal purlin.

Although you do not usually need to drill holes in your metal roofing panels, there are a few occasions where it is a good idea to pre-drill the holes. For example:

  • If you are attaching them to a solid wood substrate – you do not need to worry about the distance between supports if you are attaching to a solid wood substrate. There is wood across the whole roof, so it does not matter where you place your screws. 
  • If you want to stack and pre-drill numerous metal sheets (this is often hard to do as you will have to try and avoid drilling at an angle) – while this may save you time, it can cost money if you do it wrong. To prevent the sheets of metal from moving while you are drilling, it is a good idea to use a clamp to hold them in place. 

There are some advantages to pre-drilling metal roofing. Not only does it reduce the chances of screws being installed at an angle, as the pre-drilled hole helps to steer the screw into the material below, but it also allows you to create straight screw lines at perfectly spaced-out intervals. Another advantage is that it can save you time as you can drill through more than one piece of metal at a time. 

  1. Secure to Solid Wood

No matter where you are trying to install a metal roof, it is always advisable to install it onto solid wood. It is much easier to secure a metal roof to a solid wood frame than it is to try and install it without one. 

  1. Place the Screws in the Right Position

When it comes to fitting a metal roof, the position of your screws is extremely important. To get a tight fit and prevent water from seeping through the holes you create, you will need to place the screws in the right place. Screws should be installed down the inside of the flat of the panel. You should avoid screwing the screws in the top of the rib. Placing a screw in the top of the rib will prevent a tight seal. 

Another reason you should not place a screw in the top of a rib is because the screw may tilt while being screwed into place. This can cause the screw hole to stretch and become too big for the washer. If the holes become too big for the washers, your roof will leak when it rains. This can be avoided by placing the screws in the flat of the panel. 

Additionally, placing a screw in the top of the rib can increase the possibility of the screw pulling out during bad weather, such as high winds. By following these pieces of advice, you will be able to ensure your roof is securely fitted and does not leak. 

For many years now, metal roofing has been a popular choice. Not only is this type of roofing stylish, but it is also durable too. Metal roofing comes in a range of sizes, shapes, styles, textures, and colors, making any home or property look more appealing. If you are installing metal roofing, then follow some of our advice above.