Preventing Metal Roof Leaks At Overlap in Corpus Christi TX

You've got a sturdy and highly-durable new metal roof that replaced your aged material just a few years ago. You had no hiccups during the first few years. However, it made you wonder why recently, your metal roof leaks at overlap for no reason at all.

The truth is, if you ask any Corpus Christi TX reliable and experienced roofing contractor, they may point out that metal roof leaks at overlap happen due to poor installation. However, in some cases, it's because of poor metal roofing screws as Exterior Pro points out.

Metal Roof Leaks at Overlap: Metal Roofing Screws At The Source

Roofing screws are responsible for the majority of leaks on metal roofs. Metal roofing screws seal water out by compressing a rubber washer at the base of the screw head. When the screw is driven into the metal roofing panel the rubber washer forms a “ gasket” between the roofing panel and the screw head. It sounds simple enough but several things can go wrong like under driving screws, over driving screws, driving screws at the wrong angle and screws that missed the framing member. (Continued)

Did you invest in a standing seam or corrugated metal roof? The two variants both use steel, aluminum, or copper. However, their unique design principles often make or break their likelihood of metal roof leaks at overlap. Standing seam metal is a huge investment. However, its design conceals its fasteners, which reduces the likelihood of leaks.

On the other hand, corrugated roofing has exposed fasteners. As the article above pointed out, the exposure can wear down gaskets and introduce metal roof leaks at overlap. Do It Yourself has a great comparison about both metal roof designs' likelihood of leaks below.

Metal Roof Leaks at Overlap: Roof Design Leak Risk

Standing Seam Steel Roof

The standing seam roof is considered to be one of the best ways to protect your roof. It is by far the longer-lasting of the metal roofs available, and you may find that insurers look favorably upon the roof due to its stability and strength. With the standing seam, you conceal the fasteners, which helps to avoid water getting into the seam and then into the fastener hole, leading to leaks. On the downside, the standing seam steel roof is much more expensive to install than the corrugated metal.

Corrugated Metal Roofing

This type of roofing material is cheaper and many people will choose to have it fitted for this reason. The metal itself is not as durable, but you can prolong its life by painting the surface with acrylic roof paint, and by using long-life fasteners, which will help to prevent leaks. (Continued)

Let's say you've gone with corrugated roofing to replace your Corpus Christi TX roof. It's affordable and highly durable especially because you're using aluminum as material. However, the exposed fasteners are likely to cause metal roof leaks at overlap. On the other hand, not all fasteners are made equal.

Design and Build With Metal has an interesting post about the different types of metal roofing fasteners and their lifespans, durability, and overall performance. Check it out below.

The Different Kinds of Metal Roofing Fasteners

Fasteners are produced from either carbon steel or stainless steel. The majority of the fasteners used in buildings and roofing are carbon steel, due to its hardness and strength. This also the material of choice for self-drillers. Carbon steel, however, will quickly corrode when exposed to the elements, unless coated with at least .7mils of zinc coating.

The alternative, which is normally described as a Series 300 stainless steel fastener is very corrosion resistant but is intrinsically a softer material and does not lend itself well to self-drilling fasteners unless heat-treated to increase the hardness. It can, however, be used in a self-tapping application. A heat treated stainless fastener is a Series 410 and is capable of drilling and tapping material similar to a carbon steel fastener. Some heat treating processes can result in a 410 stainless steel fastener that can be prone to rust depending upon the environment.

It is recommended that 410 stainless should be plated or coated to minimize rusting. The ultimate solution would be a Series 300 fastener for corrosion resistance with the drilling capabilities of carbon steel. (Read More Here)

The best way to prevent metal roof leaks at overlap for either corrugated or standing seam metal is to use a reliable Corpus Christi TX roofing company such as Galvan Builders to tear down your old roof and replace it metal. Most leak problems happen because of poorly-executed installations. Allow professionals to help you today by contacting us!

Learn More Here: Preventing Metal Roof Leaks At Overlap in Corpus Christi TX

Galvan Builders Construction Company
4938 Williams Drive,
Corpus Christi TX 78411
361-857-4341
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