A metal roof is a worthy investment for Round Rock, Texas homeowners. It withstands hail, storm, and wind damage better than a shingle roof or concrete tiles. Metal roofs come in various designs, colors, and finishes.

However, this type of roofing system has some common problems you should be aware of.

what does hail damage look like on a roofHere Are Common Metal Roof Problems

Here are some common metal roof problems you’re likely to encounter when having a metal roof on your house:

Loud When It Rains

Most homeowners hesitate to install a metal roof, thinking it will be loud when it rains. However, this only happens if it isn’t done right. Shoddy work when installing this roof causes this problem.

Restricting thermal movement on the roof may cause noise. Not leaving space for contraction and expansion for proper thermal movement of the metal panels encourages noise and other problems, such as canning.

Proper insulation can limit noise on a metal roof. Installing insulation below or above the roof deck or between the beams of an open frame reduces noise. The installer must leave enough room for thermal movement.

The best way to avoid noise is to hire an installer, like Water Damage and Roofing of Round Rock, who is knowledgeable and experienced in metal roof installation. You won’t have to worry about the pitter-patter of rain and hail hammering on your metal roof.

what does hail damage look like on a roofMetal Roofs Overheat in Summer

Metals indeed hold heat for a long time in summer. However, it doesn’t apply to panels for metal roofs anymore.

Advancement in metal roofing technology and environmental sustainability has led to the development of cool metal roofing materials. The highly emissive metal panels have a Solar Reflective Index (SRI).

Cool metal roofing has a longer lifecycle, high energy efficiency, and is eco-friendly. The metal roof comes in various colors, profiles, finishes, and slope applications. Your professional roofer will guide you on the best metal roofing that won’t make your home overheat when summer comes.

Metal Roofs Rust

Metals rust or develop a patina over time because of exposure to oxygen and water. The rust doesn’t always have the reddish brown color we usually associate it with.

Although rusting is an inherent feature of metals in ideal conditions, metal panels built from metals, metal coils, and metal sheets are engineered, coated, and tested to withstand rust for as long as possible.

Galvalume, a combination of steel, aluminum, and zinc, has some outstanding features of all metals. Its self-healing ability is unique to a regular galvanized steel metal roof.

Apart from the sheets and coils for making metal roofs, paint applied on the metal is designed to withstand rusting and saltwater corrosion. If the coat fails as promised, reputable manufacturers offer buyers a paint or metal substrate warranty.

what does hail damage look like on a roofMetal Roofs Attract Lightning

It’s common knowledge that holding up anything metallic during a thunderstorm may attract a lightning strike. Even lighting rods on top of builds are metallic.

However, these rods don’t attract a bolt of lightning. They conduct electricity and channel it safely to the ground to limit damage to the property.

Metal doesn’t increase the likelihood of lightning strikes in any way. It just has a possibility of getting struck by fighting as other metals. According to the Metal Construction Association, the possibility of a lightning strike depends on the following:

  • Topography of the land
  • Location in relation to other buildings
  • Size of the building
  • Frequency of thunderstorm

A metal roof is a popular option for Round Rock homeowners when planning a new roof for its safety against lightning. Metal is non-combustible, unlike a shingle roof making it less prone to igniting or burning.

Lightning can strike a metal roof but won’t catch fire or explode to keep your household safe. For peace of mind, your roofer may install a lighting protector system.

Metal Roofs Dent Easily

It’s not true that metal roofs dent easily, as most people believe. A metal roof is tough to dent or puncture. You don’t have to worry about your roof ending up with dents the first time a wave of hail rolls. An average hailstorm is less likely to damage or dent a metal roof.

A metal roofing system is only damaged by increased size and quantity of hailstones. Huge storms with large pieces of hail may cause significant damage to metal roofs.

Homeowners in Round Rock, TX, where hailstones are common, should install metal roofs with striation in the flat part of the metal panel profile. These hide any dents that may occur after a severe hailstorm.

Metal Roofing Is Too Heavy

Most people think metal roofs are likely to be heavy for their homes, which isn’t true. You’ll be surprised to discover that metal roofs weigh about 50% lighter than shingle roofs and 70% lighter than other materials.

Asphalt shingles weigh about 275-425 pounds per square foot, depending on brand and style. An average metal roof weighs about 100 lbs. per 100 sq. feet. Its lightweight nature lessens the supports for keeping it in place.

A Standing Seam Metal Roof Leaks

Other roofing materials can’t match the durability, performance, and strength of metal roof systems. However, metal roofs are prone to leaks from various factors, such as structural damage.

Sometimes a standing seam metal roofing may leak because of installer errors, including poor handling of roofing material or wrong installation process.

Failing Fasteners

Most roofers use stainless steel fasteners and screws to install a standing seam metal system. The roofing material is prone to deterioration and corrosion from moisture and oxygen exposure.

Additionally, the fasteners hold the steel roof in place, and any problems with them encourage leaks. Wind may blow the roof, creating room for leaks into your interior.

what does hail damage look like on a roofFaded Paint

Metal roofing systems have protective paint systems that last longer than an asphalt shingle roof or cedar shake shingles. However, this protective backside coating may deteriorate over time, contributing to early corrosion of the roofing material.

You will have to apply a new water-resistant paint to protect and prevent a leaky roof.

Dissimilar Metals and Materials Combining

Including various metals on your metal roof system may cause interactions that cause early deterioration, discoloration, and complete failure of your roofing system. To work efficiently, certain metals shouldn’t touch particular materials, including bricks, copper, and related timber.

When galvalume gets into contact with the materials highlighted above, it transforms into an electrolyte. This encourages galvanic corrosion of the anode and ultimately leads to erosion.

Chalking and Erosion

Chalking is white residue visible on painted or coated metal panels. It results from paint resin breaking down from UV exposure. Fading is a breakdown of the paint system applied on metal substrates resulting from water, UV exposure, or pollution.

It makes metal roof panels change color. Uneven fading occurs since not all panels are evenly exposed to elements that cause deterioration. Ensure that your roofer’s warranty can cover chalking and installation errors.

Scuffing and Scratching

Roofing components have paint applied to it. However, the installer may scuffle or scratch it unknowingly. Parts such as the metal coil and roofing panels need extra care during roll forming and installation.

The scratches can be fixed by applying a fresh coat of paint to match the color of your roof. However, some pieces may need replacement.

2022 what does hail damage look like on a roofOil Canning

Its visible waviness of a metal roofing flat areas and metal wall panels. Oil canning is elastic stress wrinkling of metal material. It may look like overstressed standing seam metal roofs that can’t stay flat. The metal gives in and creates visible waves.

Oil canning may result from:

  • Extreme pressure during coil slitting
  • Inadequate space for thermal expansion and contraction
  • Changes in the structure’s original form
  • Poor handling by the installer

Your contractor must be licensed by the building department and comply with the manufacturer’s minimum slope requirements for proper standing seam metal roof installation. Oil canning can be prevented by investing in thicker metal or using a rib roller profile for breaking up flat space on a panel.

Other Installation Errors

The roofer may make some minor errors that may compromise the structural integrity of your metal roof including:

  • Loose screws
  • Poorly attached flashing
  • Missing parts or accessories

These errors may seem insignificant but may contribute to huge problems.


Don’t let the abovementioned problems scare you from enjoying the immense benefits of a metal roof. The roof is long-lasting and withstands the harsh weather in Round Rock. Most are human errors, and working with a reputable installer who is licensed and experienced eliminates them.