Selecting the Right Sheet Metal for Roofing Services

There are various roofing materials available in the market, but sheet metals remain the favorite for most home owners due to its affordability and durability. Some of the available types of sheet metals that can be used for roofing include aluminum, paint grip pre-finished steel, stainless steel, and galvanized steel. The durability of these materials to the outdoor environments makes them the preferred materials for doing roof-related flashings.

Getting optimal benefits from the sheet metal requires that you understand the available types of options that can guarantee longevity and water tightness on your roof. Most roofing contractors Toronto prefer using aluminum and stainless steel in performing projects such as copings, counter flashings, gravel guards, wall flashings, and penetration pockets that are roof-related flashings.


This material can be customized in various ways depending on the desired finish. It can also be used in its natural condition where it weathers into an even spread of gray color. Using acrylic coatings for painting the aluminum can help in achieving specific colors. However, you can also anodize special alloys in order to get a wide range of colors for the roofing.

Aluminum reacts with oxygen in the air to form an oxide film on its surface. Acrylic, on the other hand, helps in repelling water and preventing corrosion of the sheet metal. However, strong caustics like lime cannot be endured. One advantage of the aluminum is that it’s lightweight and is very easily workable. The sheet metal can be configured into desired designs without too much hassle. Aluminum fasteners should be used in attachments. Hire a skilled welder who has experience in welding aluminum so as to ensure that there is a water tight joint. You can also use rivets and sealants in sealing joints perfectly. Aluminum is not a viable option for projects like through-wall flashing because it shouldn’t come into contact with concrete or dissimilar materials.

Stainless Steel

The material is resistant to corrosion and is maintenance free. The common type of stainless steel that is used for roof-related flashing projects is the 300-series. Moreover, there are no electrolysis concerns when it’s used together with other metals. It requires artificial surface coatings to protect the sheet metal. The product is self-cleaning provided the contaminants have been removed from its surface.

It doesn’t decay when it comes into contact with mortar or concrete. You don’t have to worry about staining concerns on other surfaces that are installed together with the metal. Ensure that you clean surfaces thoroughly after installation of stainless steel. You should also avoid large and long surfaces so as to prevent waviness. Stainless steel flux works well when using the best soldering techniques.

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