Why Is My New Metal Roof Leaking?

Remember, a brand new metal roof should not have any leaks. It's likely that the installers made a mistake if your new metal roof leaks.

Installing a metal roof on a business or residential building may be beneficial for various reasons. They usually don't need much care, are long-lasting, and don't harm the environment. A painted metal roof has the potential to persist for many decades and may even retain 95 percent of the original reflectance and emittance that it had when it was first installed.

However, even if a business purchases its metal roofing materials from the residential or commercial metal roofing provider with the most excellent reputation, the high quality of the metal roof sheets won't make a difference if the installation isn't done to the appropriate standards.

In the best of all possible worlds, you shouldn't have to worry about repairing or replacing metal roofs for a very long time. However, the matter is that if a homeowner or business owner employs a contractor who does not specialize in steel roofing — or if they choose to take the route of doing the work themselves — several things may go wrong. And regrettably, the owner may not notice anything is wrong until a storm comes along, such as rainfall or a snowstorm, which typically results in the need for immediate repair or replacement.

new metal roof leaking

What Could Be Causing Your Brand-New Metal Roof to Leak?

1. Roofing pitch

An inadequate roof slope is likely to blame in most situations when a new metal roof leaks. The majority of roofs covered with metal shingles need a slope equal to 4/12, which means that there must be four inches of rising for every foot that the roof extends. It is quite probable that you have located the leak source if the slope is less than 3/12. However, if the commercial roofing system has a standing seam, it may be erected on slopes on 2/12. This is one of the more common requirements for such installations. There are certain exceptions for particular kinds of systems, but if the slope is wrong, there is a fair chance there is not enough slope.

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2. Panels that are either absent or improperly fastened

Strong winds have the potential to dislodge or even wholly remove roofing components made of metal if they have not been correctly mounted on the building. This will only occur if the roof sheets are not attached to the rafters properly using the appropriate fasteners. You will need to replace any missing components if the metal panels were not interlocked or if they were not correctly attached to the deck. If you locate panels that have blown off, this is a solid indicator that they were built improperly, which caused the new metal roof to leak. The majority of metal roofs can withstand winds of up to 110 miles per hour.

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3. Incorrect use of the flashing

If flashing was not built around sensitive portions of the house, such as the region surrounding a skylight or brick chimney, your new metal roof leaking is possible. In addition to checking the roof valleys and end walls, you should also inspect the side walls. Because these are the places where leaks are most likely to start, you will want to examine them, mainly if you cannot identify any other evident causes of a leak in the region.

 

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