Roofing Answers Articles

Can Metal Roofs Be Installed Direct Over Old Shingles?

March 8, 2017

Q: 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? A. You may wish to take a look at the videos in our Metal Roofing 101 video series … there may be some topics of interest to you. I… ( read more )

Recent Question About Roof Deck Insulation

February 16, 2017

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! Q: 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… ( read more )

Metal Roofing and Leaving Your Home to the Next Generation

April 26, 2013

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… ( read more )

Exposed Fastener Metal Roofing: Is It Standing Seam?

April 6, 2013

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,”… ( read more )

Is Increased Attic Ventilation Ever Not A Good Idea?

November 21, 2011

A few years ago, some folks had me come to their home to try to evaluate an odd ventilation 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… ( read more )

Battens or no Battens?

November 7, 2011

Greg from Florida recently sent me this question: Q: I am looking to have a metal roof installed over my existing single layer shingle roof. I have had several estimates from companies but the one difference I see is that some companies want to use purlins (battens) and others do not. Are there a advantages… ( read more )