Ask Todd Miller *Metal Roofing Expert

Roofing Questions Answered

Ice Dams and Metal Roofing

Filed under: Metal Roofing,Roofing Answers

Todd from Washington recently asked me this question: We bought and moved into our house in January. The neighborhood is in a mountain setting and gets a lot of snow. We are new to the area and didn’t really know anything about ice dams. A few weeks after moving in, we had water coming inside […]


Exposed Fasteners: Leaking or Condensation?

Filed under: Metal Roofing,Roofing Answers

I am not a huge fan of exposed fasteners for roofs on residential applications. Probably 80% of the questions I receive about problems with metal roofs pertain to these types of panels. That said, I am happy to help when I can. I recently received the following question from Jane: I noticed my inside ceiling […]


Is Ice And Watershield On The Entire Roof A Good Idea?

Filed under: Metal Roofing,Roofing Answers

I recently had a homeowner ask me the following: 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 […]


Is OSB Acceptable As Decking For Metal Roofing?

Filed under: Metal Roofing,Roofing Answers

A homeowner recently wrote and asked me the following regarding OSB roof decking: We are checking into a metal roof and we have a question that needs to be clarified. We heard that the metal will not stay on as well if you have OSB decking. Should it be a different type of wood? Is […]


Gutters Torn Off By Snow

Filed under: Metal Roofing,Roofing Answers

A nice homeowner named Lisa emailed me the following about her recent issues with the gutters on her home being torn off by sliding snow. I came across an old posting of yours in which you were giving advice to a homeowner like me who had a metal roof and problems with cascading snow ripping […]


Can Metal Roofs Be Installed Direct Over Old Shingles?

Filed under: Roofing Answers

I received the following question from a homeowner in Oklahoma: Is it OK for metal roofing to be screwed down directly on top of asphalt shingles, without any wood or other material between the metal and shingle? Here was my response: You may wish to take a look at the videos in our Metal Roofing […]


Recent Question About Roof Deck Insulation

Filed under: Metal Roofing,Roofing Answers

I received the following question recently from a homeowner named Tom. He is obviously doing his homework to ensure a successful roofing project. I like that! Todd, I saw your info on metal roofs over shingles and have a few questions. I have a double wide low pitch roof that has some saging between the […]


Metal Roofing and Leaving Your Home to the Next Generation

Filed under: Metal Roofing,Roofing Answers

I am frequently asked the following questions: “Is a metal roof right for me?” and “Is a metal roof right for my home?” Those questions then lead to an interesting exchange in which I ask about the home and also about the homeowner’s needs. One question I always ask is “How long do you plan […]


Exposed Fastener Metal Roofing: Is It Standing Seam?

Filed under: A Little History,Metal Roofing,Roofing Answers

I get a lot of questions about exposed fastener metal roofing. Also called “screw-through” metal roofing or sometimes “channel drain”, these are rollformed products that are vertically oriented on the roof. They have some sort of corrugated wave or rib pattern formed into the panels. Some common names to the corrugated patterns are “R Panel,” […]


Is Increased Attic Ventilation Ever Not A Good Idea?

Filed under: Misc,Roofing Answers

A few years ago, some folks had me come to their home to try to evaluate an odd issue they were having after their new roof was installed. They were suddenly getting condensation on the inside of their home’s exterior walls. This condensation was worst behind couches and other items that were located up against […]


About Me

My expertise comes from 30 years of experience in metal roofing manufacturing. As president of Isaiah Industries, based in Piqua Ohio, I run several of the world’s leading manufacturers of residential metal roofing; Classic Metal Roofing Systems, Kassel & Irons, and Green American Home. My personal goal is to educate homeowners of the long-life benefits of metal roofing.

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