Ask Todd Miller *Metal Roofing Expert

Roofing Materials Articles

Roofing Materials: Is Polymer Roofing Right for Your Home?

Filed under: Roofing Materials

My experience in the specialty residential roofing industry goes back to the early 1980s when I was working summers during high school and college in the factory my father had started. I started working for the company, now Isaiah Industries, full time in 1986 and have never looked back. While we have always been a […]


Hurricane Harvey Texas Coast Report: Roofing Material Performance

Filed under: Articles, Metal Roofing, Roofing Materials

I visited Houston and Texas coastal areas shortly after Hurricane Harvey’s devestation in September, 2017. This eye-witness report on  roofing material performance in storm conditions can help homeowners in other areas prone to strong winds and rain prepare for the protection of their homes. I had the opportunity this week to visit the Texas gulf […]


4 Types of Vertical Seam Metal Roofs

Filed under: Metal Roofing, Roofing Materials

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 […]


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

Filed under: Metal Roofing, Roofing Answers, Roofing Installation, Roofing Materials

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 […]


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

Filed under: Metal Roofing 101 Series, Roofing Help Videos, Roofing Installation, Roofing Materials

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 […]


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

Filed under: Metal Roofing 101 Series, Roofing Help Videos, Roofing Installation, Roofing Materials

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, […]


Is OSB Acceptable as Roof Decking for Metal Roofing?

Filed under: Metal Roofing, Roofing Answers, Roofing Installation, Roofing Materials

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 […]