Metal Roof Restoration Services

Metal Roof Repair Solutions

Methods For Fixing Leaking Commercial Metal Roofing

Do you have a building that has a metal roof system? Perhaps you are responsible for managing an industrial or commercial property with a standing seam metal roofing system. In the U.S., a high percentage of overall roofing systems are metal roof systems. There is a very good chance that at some point in time you have been responsible for a building that has a metal roof. So you probably want to know about your metal roof repair options.

If you have ever been responsible for a building with a metal roof system then you have probably had metal roof leaks that you needed to deal with. A metal roof is comprised of details that are unique to this type of system. This results in the repair options also being unique.

A wide range of different buildings has metal roof systems. They are also installed on residential buildings which have a tendency to be situated on a steep slope. They are installed on industrial and commercial buildings. There are some industrial buildings that use a metal roof system for both their structural roof deck and as a waterproofing system.

Has your metal roofing system experienced any roof leaks? If so, you are definitely not alone. In certain areas, metal roof systems tend to be susceptible to leaking conditions.

The devil is definitely in the details, as the saying goes. This is definitely true when it comes to maintaining and installing metal roof assemblies.

The following are some of the most common metal roof problems:

Panel damage
Improper installation methods
Loose counterflashing
Open ridge/headwall flashing
Fastener backout
Metal roof oxidation
Open penetration flashings
Open seams

Before discussing the areas where leaks develop, let’s take a look at q couple of a metal roof system’s major design characteristics.

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Architectural vs. Structural Metal Roof Systems

Metal Roof Restoration CompaniesThere are two different metal roof systems that you can install. They are a structural metal roof assembly or an architectural metal roof assembly. Using a structural roof deck is the main difference between these two.

Architectural metal roof systems are installed on top of separate structural roof decks. Most residential applications use this type of system. They also are found on various commercial buildings like shopping centers that have a separate deck for supporting their metal roof panels. The major characteristic of this kind of metal roofing system design is it is equipped with a separate structural deck for supporting the metal panels.

The name structural metal roof system is exactly like it sounds. Metal roof panels are used by the design as both the building’s waterproofing system and the roof’s structural deck. Typically, metal roof systems can be found on pre-engineered metal buildings. Clips attached to the panels on the building’s horizontal purlins are used to install these types of metal roof systems. Before these metal panels get installed, batten insulation is usually laid over the purlins.

Hydrokinetic vs. Hydrostatic Designs

The slope is a separate design characteristic that metal roof systems have. A metal roof system can either be installed on a low slope application or a steep slope. Metal roof systems can encounter major problems if the slope is not considered.

When a metal roof system is designed, installed, and maintained, it is critical to consider the roof’s slope. Low-sloped roof systems are defied by the NRCA as all roofs with slopes of under 3:12. Other roofing systems are all steep-sloped.

A hydrostatic metal roof system is designed for holding water until it is able to drain. This type of roof system can hold water without causing the roof system to leak. These metal roofs typically are used on large pre-engineered metal buildings. It is more expensive to design larger structures with steep-sloped roof assemblies. Hydrostatic metal roofing systems are used in residential applications as well. Copper and tin metal roofs may be installed in a hydrostatic system using soldered flat seams.

Hydrokinetic metal roof assemblies have been designed for shedding water. This type of system is designed to be used in steep slope applications. These types of applications are used on commercial and residential applications where it is important for water to not stay on the roof. If the roof system retains water, hydrostatic pressure can be created and force water in and create metal roof leaks.

Armadillo Roofing & Exteriors (512) 333-7663 provides commercial metal roof coating, commercial metal roof restoration, commercial metal roof repair and commercial metal roof installation services to Austin, Texas and the surrounding Austin area communities. When you need an experienced commercial metal roof repair contractor that you can trust, call us.

You can also visit our sister site,, if you need additional help with commercial metal roof restoration or repair.

Commercial Metal Roof Installation

Reasons Why Metal Roof Repair Fails

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Mistakes made when designing and installing new metal roofs can cause major problems. The areas where common problems tend to not occur in selecting the system. Most of the problems that metal roof repair leaks are caused relate to the various details that are used for finishing metal roof systems. Those mistakes are not immediately obvious after the installation is completed. It can take time for them to develop.

The following are five of the most common problems that are found when a metal roof’s condition is being assessed.

Horizontal Seam Openings

It is hard and impossible at times to produce metal roof panels that are able to extend a building’s full rafter length. The project designer in some designs limits how long the panels can be based on contraction and expansion.

Due to the panel length restriction, horizontal seams must be installed onto the roof system by the installer. The horizontal seams are perpendicular to the metal roof’s standing seams.

Over time, horizontal seams can separate. In a hydrostatic metal roof system, an opening can be created that allows water to get back into a building.

Penetration Flashing Openings

Metal roof systems are susceptible to contraction and expansion. This is due to metal panels moving as temperatures change. Stress at attachment points occurs due to this movement, in addition to penetration throughout the roof system. This stress results in the flashings breaking down at the penetrations, resulting in leaks in the roof.

A metal roof system is built by individual metal panels being attached together at the point of the seam. After installing metal roof systems, it is hard to remove or disassemble them.

In contrast to asphalt shingle systems, metal roofing systems cannot be disassembled to repair the penetration flashing. That makes it harder to do long-term repairs, especially when the penetration was installed following the metal roof installation.

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Oxidation of Metal Roofs

Commercial Metal Roof Repair CompaniesA broad range of materials is used to make metal roofs. They include zinc, copper, tin, aluminum, and steel. Some of those materials are prone to oxidation. Sheet metal that has a protective surface coating is used to make a majority of metal roof panels. This coating over time can end up wearing away which results in the metal panels oxidizing.

A number of problems can be caused by surface oxidations. Those problems may include structural failure with structural system metal roofing systems. Repairs are also impeded by oxidation. Metal panel oxidation that occurs at exposed fastener heads which makes it hard to apply sealant.

Fasteners Backing Out 

Typically, metal oof systems are comprised of a combination of concealed and exposed fasteners. The fasteners may be screws or nails. Typically, exposed fasteners come with a neoprene washer which seals the head of the fastener to the metal roof panel’s surface. 

Fasteners over time tend to back out from their seated position. There are various reasons why this may occur. Fasteners may back out due to wind uplift. Under wind conditions, metal panels may vibrate which can lead to the fasteners backing. Another thing that can cause fasteners to back out is freeze-thaw. When the neoprene washer is dried out, it allows water to get in. During the winter, water may freeze and expand which can result in fasteners backing out. 

Headwall/ Open Ridge Flashing 

Roof systems can terminate into other types of conditions on a building’s surface. Those conditions can include wall details rising when the roofing matches with other surfaces. One example is a metal roof system that ends in a rising wall under a signed band at a shopping center. 

This area tends to develop weaknesses. It is often due to poor details in the original installation. Those details need closure strips so that water is prevented from blowing back onto the detail. Sometimes this closure strip is not installed by contractors. The underlayment initially waterproofs a roofing system against blowback. Moisture may penetrate the roof system as the underlayment continues to age.   

Metal roof leaks can be caused by other sources. The five above are the most common sources to initially check. Knowing where you should look for possible leaks is just half of the battle.

Armadillo Roofing & Exteriors (512) 333-7663 provides commercial metal roof coating, commercial metal roof restoration, commercial metal roof repair and commercial metal roof installation services to Austin, Texas and the surrounding Austin area communities. When you need good, experienced advice regarding your commercial metal roof, give us a call.

You can also visit our sister site,, if you need additional help with commercial metal roof restoration or repair.

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Commercial Roof Repair, Commercial Roof Replacement and Commercial Metal Roof Restoration for the Austin Area

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Commercial Metal Roof Restoration

Let us show you how you can save a lot of money, as much as 30-40%, by restoring your commercial metal roof instead of replacing it.

About Us

I’m Mark Franz, the owner of Armadillo Roofing & Exteriors.

I’m proud to say no one can beat our quality and experience in commercial roof repair, commercial roof installation, commercial roof replacement, commercial metal roof repair and commercial metal roof restoration in Austin, Texas.

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Whether you’re looking for commercial roof installation, commercial roof repair, commercial roof maintenance, commercial metal roof repair or commercial metal roof restoration, we here at Armadillo Roofing have you covered.

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Here at Armadillo Roofing, nothing is more important than taking care of the most important asset we have – our satisfied customers.

We take pride in the number of 5 star reviews you will find online that our customers have posted.

We will always deliver on our promise to ensure the finest quality materials and craftsmanship, stressing integrity and rewarding excellence. We are craftsmen who take pride in the roofing services we provide to our customers, both commercial and residential.

Our commitment is to deliver “Quality Craftsmanship at an Affordable Price,” and we have been doing just that for well over a decade now in Austin and the surrounding areas.

“Thanks for taking care of us in a professional manner. It was a pleasure to deal with someone who actually did what he said he would do. Look forward to seeing you soon. Thanks again.”

Mike McCoy – Mission Mortgage

“Thanks for a job well done. I look forward to working with you in the future. Let me know if you need any references on your future jobs. I’d be glad to be of help. Take Care.”

Mike Wilson – Central Texas Development Assessments, Inc.,

“Thank you again for your hard work. You did an amazing job on our building’s roof system and I would certainly recommend Armadillo to anyone needing your services.”

A.W. Armstrong – Kestrel Management Services, LLC

“Armadillo Roofing replaced our old roof with a beautiful new one. David managed the entire process to the detail. He was there during the work and walked the roof with me after it was finished. Quality, friendly and trustworthy best describes our experience with Mark and David at Armadillo.”

Lisa Y. – Austin

“We had an amazing experience with Armadillo Roofing and can’t say enough positive things about them. They replaced our entire roof in time to put our house on the market.”

Court C. – Cedar Park

“A hail storm left us with roof damage. Armadillo was referred to us and we couldn’t be happier. David was onsite at the start and finish of each phase to ensure everything was done properly. Mark is engaged and responsive anytime we had questions. They do great work! I would recommend Armadillo to anyone.”

Danny W. – Austin