How Many Screws Per Ondura Panel?

As one of the most important parts of the house, the roof must use a type of material that can withstand wind and elements, like Ondura asphalt roofing. If you want to install the Ondura panels on your own, you've probably asked yourself, how many screws will you need? We've researched the topic to find the answers.

Every Ondura-6V panel that needs to be installed on the roof should have at least 15 screws. In every panel, there must be three rows with five screws each. The screws should be spaced 24 inches apart. The panels must be fastened for every corrugation to ensure a stable installation. Other types of Ondura panels require more screws. 

These Ondura panels are an excellent option for roofing materials, and it's important to know how to install them properly. In this post, we will talk about the basics of installing an Ondura panel. We'll also discuss the durability of these panels and how long they will last, so keep reading to learn more in this post!

How Many Screws Per Ondura Panel?

Gray corrugated metal cladding on industrial building roof, How Many Screws Per Ondura Panel?

Roofs have one of the most important jobs in your entire home. The roof is designed to keep the entire house together by protecting everything underneath it. Roofs come in many shapes and sizes, but they must possess durability and strength. 

Because of this, many roofing materials are available in the market, promising durability for many years. One of the most popular brands when it comes to roofing is Onduline, which makes the Ondura line of lightweight roof panels. They are made from premium corrugated asphalt for complete weather protection.

These roofing panels are easy to install and can be installed over most existing roofs. To do this, you'll need a properly calculated number of roof panels and genuine Ondura hex screws to fasten the panels on the roof.

Types of Ondura panels and required screws

Tightening screw roofing iron roof

Ondura has various types of roofing panels that are available. They have different corrugations to choose from, so the number of screws necessary to fasten them varies. 

For the Ondura 6V roofing panels, there are 6 corrugations on the panel. To install them, a minimum of 15 screw fasteners should be used on the panels. The fasteners should be installed in three rows, with five screws per row. When overlapping them with another panel, add one screw each per row.

When using the Ondura 9V roofing panels, there will be 9 corrugations on the panel. The Ondura 9V roofing panel requires at least 17 screws to fasten a panel. An overlapping panel should have about 29 screws maximum on the panel. 

The Ondura 10V premium roofing panels will have 10 corrugations. There must be 19 screw fasteners per panel upon installation. When the overlapping panel is installed, 13 additional screws are needed to fasten the overlap panel properly.

For Ondura 10V half panels, 20 to 26 screw fasteners are required. The number of screw fasteners depends on the overlap of the adjacent panels.

Screw the panels perpendicularly to the roof and through the crown of the corrugation. Do not overdrive or underdrive the screw because it can cause the panels to become loose. Always check the rubber washer on the roofing screw, which should be in contact snugly with the roofing sheet.

All Ondura roofing panels must be installed properly to avoid any issues in the future. Improper installation and fastening of the panels will cause waterproofing issues and may ruin the roofing panel prematurely.

How Much Should Ondura Panels Overlap?

Multicolored metal roof decking

Corrugated roofing panels are meant to overlap because it creates a seal and prevents water from seeping through the panel's edges. Overlapping them covers up the edges of the panel, turning them into one solid and seamless roof. Securing the panels makes the roof panels less prone to leaking and also prevents the panels from getting blown off.

Like most corrugated roofs, the Ondura panels should overlap at least 6 or 7 inches over the first set of panels. Make sure to fasten this overlap panel securely to the previous roofing panel to create a seal. Remember to fasten them with at least one roofing screw for every row.

To make it simple, the Ondura panels must overlap by at least one corrugation against the eave of the first panel. This spacing is enough for you to drive fasteners over the overlapped parts of the panel. 

How Long Will Ondura Panels Last?

One of the best advantages of Ondura panels is their durability. These roofing panels are made from high-quality organic fiber core. This core is then impregnated with asphalt, which makes them highly durable and weather-resistant. 

Since these roofing panels are infused with asphalt, they imbibe all the qualities of bitumen, like impermeability, flexibility, and resistance to heat and rain. According to the manufacturers, the Ondura roofing panels can last up to 40 years or more if they are installed correctly.

Of course, varying conditions can make some Ondura panels weaker. If exposed to extreme heat or freezing temperatures, some Ondura panels may break. Always check to see if these asphalt roofing panels will work well in your area before installing them on your roofs. 

Can I Walk On Ondura Panels?

Worker repairing roof

Just like other roofing panels, you can also walk on Ondura panels. However, since they are more flexible than other panels, there are special precautions necessary when walking on Ondura panels.

When walking on Ondura panels, remember to wear soft-soled shoes to avoid breaking the panels. Place your feet perpendicular to the corrugations and walk along this line. Distribute your weight as you walk across the roofing panels. Do not walk against the corrugations because a person's weight can break the panel in half.

Always remember to walk only on areas that have structural support. Check the areas where there is heating or purlins because these structural supports will be able to handle your weight. 

The Ondura panels can be slippery when it is wet, oily, dusty, or frosty. If these conditions exist on the roofing panels, avoid walking on them. Do not walk on the panels when it is windy, as it can be dangerous to be in a high location without proper safety precautions. High heat can also be dangerous on asphalt panels, so don't walk on the panels when the sun is very hot.

Pros And Cons Of Ondura Roofing Panels

House with plastic windows and a red roof of corrugated sheet

When deciding on which kind of roofing material to use in your home, there are several factors that must be considered. These factors will affect what kind of material will work best for you and if the roofing material will suit the standards of the local building codes.

Just like any roofing material in the market, the Ondura roofing panels also have their pros and cons. Deciding to use these panels relies on the area where you live and your own personal preference. 

Pros of Ondura panels

  • Ondura roofing panels are certified by the Environmental Protection Agency as an environmentally preferred product. 
  • These Ondura roofing panels do not rust or corrode like metal roof panels.
  • They are also highly resistant to wind, so it's suitable for windy locations.
  • Ondura panels are easy to install and they require very little maintenance.
  • The panels are lighter compared to other materials, so there is no structural support that needs to be added.
  • They are more affordable compared to other materials like clay shingles or corrugated metal roofing.

Cons of Ondura panels

  • Some users have mentioned that painted Ondura panels tend to peel and flake.
  • These panels do not do well in locations that get a lot of rain because it softens the asphalt coating.
  • The coating on the Ondura panels tends to wear out quickly. They will need consistent sealing every 5 to 7 years to ensure that the asphalt coating will not soften.
  • There are occasions when users experience Ondura panels disintegrating after some time. This is because of excess moisture that gets absorbed by the roofing material.

Wrapping Things Up

A strong, long-lasting roof requires high-quality and sturdy roofing material. Ondura roofing panels are a great option for this, as these asphalt-coated roofs are known to last for decades. With good maintenance, you won't need to change these roofing panels for years. 

Would you like to learn more about roofing installations for your home? We have a couple of articles that might help you:

What Causes A Sagging Roof? A Guide For Homeowners

How To Stagger Architectural Shingles For Your Roof [Detailed Guide]

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