How to Install Metal Roofing Over Plywood Step-by-Step

The top part of any building covers the whole building and protects us from every season, rain, sun, and storm. It means it has very importance in every building every time.

When it is very important, it is our responsibility to take care of it also.

The plywood roofs have a sensibility for water and dampness. If we do not cure it with any reasonable solution, we will lose it soon.

Therefore, we install a metal roof over the plywood that increases the durability and makes it attractive.

Metal roof has multiple benefits like resilience, energy efficiency, low maintenance, etc.

In this article, I will provide step-by-step guidance for installing a metal roof over plywood.

So, keep reading.

 

Benefits of Metal Roofing Installation

Metal roofs are not new in the market, but they become very popular in recent years due to their durability and outstanding qualities.

If we compare it with traditional asphalt shingles, metal roofs are highly recommended because they are capable against harsh weather conditions, like heavy rain, snow, and strong winds.

It can be cost-effective for us due to its long life span because metal roof works for more than 50 years if we properly care for them.

Ultimately, it will not be wasted for us because it is made of recycled material, so it will not impact our environment.

 

Preparation for Metal Roofing Installation

Before the metal roof installation process, here are a few steps that are must we follow. It will make it easy to complete the whole project in time.

 

1- Choosing the Right Metal Roofing

In the market, there are many types of metal roof materials, and each type has its unique characteristics and visual shapes, like standing seam metal roofing, corrugated metal panels, metal shingles, etc.

So, before starting the installation process, it is essential to deeply analyze each type to choose the right metal roofing type for the project.

If we neglect it, we will waste our precious time and money.

 

2- Inspecting and Repairing the Plywood

Suppose we are going to install metal roofing over an old plywood roof. So, inspecting the parts and pieces of the plywood roof is crucial because a sturdy base can bear the whole weight of the metal roofing and reduce future problems.

So, inspect carefully the plywood roofing. If we find any signs of damage, like water stains, warping, rot, or any other issues, we will immediately replace the damaged parts before proceeding with the further process.

 

Gathering Necessary Metal Roofing Tools and Materials

Now, it is time to gather all the necessary metal roofing tools that we will need during the metal roof installation process. Having everything prepared beforehand will streamline the installation process and reduce potential delays.

Especially we will need these tools.

• Measuring tape
• Chalk line
• Circular saw
• Hammer
• Screw Gun
• Cordless Drill
• Drivers
• Caulk Gun
• Shears
• Nibblers

How to Install Metal Roofing Over Plywood Step-by-Step

Metal Roofing Installation Process

After gathering all the necessary tools and materials, we can easily apply metal roofing over plywood. Just follow these simple steps.

1- Measuring and Marking

A successful metal roof installation process depends on accurate measurements. Little mistakes in measurements not only cause wastage of materials but also cause delays.

So, we will start measuring the roof’s dimensions to calculate the total amount of metal roofing needed. We will account for any overhangs and include a slight overage to accommodate cutting and trimming.

After measurements, we will mark the reference lines on the plywood roof with chalk. These lines will guide us to align properly when installing metal roofing over plywood.

 

2- Applying Plywood roof underlayment

The purpose of a roof is also to control the leakage of rainwater into the rooms. But, if we construct a roof that has many leakage paths, it is in the worst condition.

So, we will apply underlayment to provide the extra protection layer to improve the insulation and against water infiltration before the metal roof installation.

The waterproofing layer should be laid on the entire roof surface to ensure its purpose. Do it carefully because it is very difficult to control the water leakage after installing the sheathing for metal roof over plywood.

 

3- Attaching the Metal Roofing

Now, it is the exciting part of the work. We will start the metal roof installation from one corner of the roof. The marked lines on the plywood panels we have already drawn will guide us through the process.

We will always remember that we will overlap the panels correctly to control the water leakage through the gap where one panel ends. We will use appropriate metal roofing screws and anchors to secure the panels to the plywood.

We will continue this process until we reach the other corner of the roof.

 

4- Finishing Touches

Once we have installed all the metal panels in place, we will trim the edges of the metal roof sheets as needed and clean the metal roof surface.

Secondly, we must seal any openings and potential entry points for water with a high-quality waterproofing material. It will increase the life span of the metal roof.

We can paint on the metal surface for better protection and beauty, depending on the owner’s choice.

There is a low chance of metal roof damage, so they require low maintenance, but it is necessary to regularly inspect for any damage and follow the metal roof maintenance tips.

Metal Roof Maintenance Tips

Here are some Maintenance tips to protect your metal roofing over plywood. Follow these simple steps and enjoy the durability of metal roofing.

Regular inspection: Regularly inspect metal roofing installed over plywood for signs of damage, rust, or loose fasteners. Address any issues immediately to prevent potential leaks and maintain structural integrity.

Cleaning and Debris Removal: Keep your metal roof clean using soft brush to remove debris like leaves, branches and dirt. It is necessary special in winter and rainy season.

Coating and Sealant Maintenance: Reapply protective coatings and sealants as needed, it will increase the durability of your metal roof and protect from corrosion.

Inspection of Corrosion: Regularly check for any signs of corrosion, especially at joints and fasteners. If it is detected, immediately clean the affected areas and apply an anti-corrosion treatment.

Professional inspection: Schedule periodic professional inspections by roofing experts. They can identify potential problems early, offer specialized maintenance, and provide tailored advice to maximize the longevity of your metal roof installed over plywood. Regular professional reviews are critical for optimal performance and sustainability.

 

Conclusion

Installing metal roofing over plywood is a rewarding struggle with multiple benefits. I have described the whole process from zero to end. And I am confident that it has helped you a lot more. If you follow the whole process step-by-step, you can save your precious time and money.

But remember, it is only a positive outlook guide. You will always need a technical person to consult.

Thank you for your time.

Best Wishes

Frequently Asked Question

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