Roofing Materials Articles

4 Types of Vertical Seam Metal Roofs

May 22, 2017

I often get asked about the different types of vertical seam metal roofs. Common questions surround the differences between them, and what would make one more appropriate for a particular application than another. I will explain the four different types of vertical seam and standing seam roofs here, in order of my perceived quality starting at… ( read more )

Is Ice and Watershield on the Entire Roof a Good Idea?

May 7, 2017

Q. I’m going to take off my old roof and put on a metal roof. Would it be overkill or problematic for me to apply ice and water barrier that is self adhesive to my entire roof as my underlayment? I ask because I live on a bluff in the middle of Missouri. It goes… ( read more )

#40 – Roof Flashing: Lineal vs. Step Flashing Explained

May 3, 2017

I recently had an interesting conversation with a contractor who has installed traditional roofing for many years. He was familiar with a concept called step flashing that is used with many types of roofing. Step flashing may be used alongside a chimney or wall where the roof intersects it. Step flashing is a series of… ( read more )

#38 – Overlapping Metal Roofing Panels vs. Interlocking Metal Roofing Panels

There are metal roofing panels that simply overlap on the vertical and/or horizontal seams, and metal roofing panels that actually interlock wherever they connect. There are obvious benefits to fully interlocking panels. Those benefits typically include increased wind resistance and less chance of weather infiltrating the roof system. Over time, with overlapping panels, ice, snow,… ( read more )

#37 – Fasteners and Metal Roofing

When investigating a metal roof for your home, you’re likely to hear about exposed fasteners and concealed fasteners. The terms are self-explanatory, but which is better? Some metal roofs are designed so that all of the screw heads are exposed. They are visible and exposed to the weather. Other products are designed with concealed fastening… ( read more )

Is OSB Acceptable as Roof Decking for Metal Roofing?

April 3, 2017

Oriented Strand Board, commonly referred to as OSB, is a type of engineered lumber similar to particle board, formed by adding adhesives and then compressing layers of wood strands. OSB is widely used as roof decking material. A homeowner recently wrote and asked me the following regarding OSB roof decking: Q. We are checking into a metal roof and we have a question… ( read more )