Corrugated Metal Panels vs. Standing Seam Metal Roofing | Roofing Mythbusters Series - Episode #4

Let’s talk METAL. Roofing expert Luke Wilson looks at the pros and cons of 29-gauge corrugated metal panels vs. 24-gauge standing seam metal roofing, and explains how a properly-installed standing seam roof will last you a lifetime.

[paulmazurek]

I have be in the metal building business over 40 years, roof panels up to 70 feet long . 100, 000 sq ft and larger buildings,
All types of panels up to 8 inch thick foam sandwitch end between metal .
This is a excellent demo video, this man knows what he is talking about a true Professional👍👍👍🇺🇸🇺🇸

[jjf]

I trust what the narrated says in this video. He has a straight forward honest personality. You've convinced me to install a striated standing seam metal roof.

[leerichards]

I've roofed since 1974,
I do Inspections and repairs these days.
I cannot stand roofing videos on YouTube,
But my response is to applaud you for your presentation,
Very well done and you are in my thoughts, a Professional!! Hands Down, well done Brother.
I enjoyed this ☮️☀️👈🏽

[danseyler]

GOOD SHOW, installed a "GALVALUME" corrugated panel roof in 2009 and placed screws only in the high spots, tops of the panel's peaks to prevent / limit leaks. No leaks yet . THANKS Standing seam seems like the better choice because there are NO EXPOSED SCREWS. I also used acrylic roof cement caulking at entry points of the screws for added seal... The proof is in the missing ceiling stains, NO LEAKS is what it's all about.

[jasue]

Just found your channel. I’ve have learned more in this 7 minute video than in the past year watching others. You are direct and to the point and for that I am thankful !

[josephraymond]

Got a corrugated galvanized roof put on 1980. Back then we used neoprene washered roofing nails nailed into the elevated ribs not on the flats. Neoprene is still holding up and no leaks. I’ve painted the roof once with aluminum paint to stop a small amount of rust that started appearing around the 25 year mark. Not bad for 40 years in upstate New York weather. I am sure I would be on my third roof with shingles

[kyflyboy]

Good video! I’ve been telling people these same things for years! The corrugated panel was designed for agricultural use and should have stayed there! If you want metal on your house, use the standing seam. I wish that he had talked about the anti-siphon rib on the corrugated panel and the proper way that it should be installed. It’s unbelievable how many of the corrugated panels are installed incorrectly with the panels not lapped correctly. Good job, young Skywalker!

[joshuacarter]

This guys is as clean as they come. Sad too think that no one knows this stuff . But he's got it down, and it's worth learning.

[razony]

I'm planning on a metal roof and Luke described this in a way that even I can understand. Straight Talk. This video made me a bit more wiser and knowledgeable to make Better decisions! Thanks Luke!

[SSmith-fmkg]

I helped a friend at work build a 30x60 foot log house between 2000-2002. The roof peak was 21 feet above the slab, with a 40 degree pitch. We installed 19 foot-long red corrugated panels...took several days. I often wondered about the rubber washers and their lifetime before failing. The standing seam is a far superior design, taking the washer failure possibility out of the question. Great video.

[jeffprostar]

Good video, I'm a retired roofer and have laid thousands of sq. feet of metal roofing. Nice presentation

[samuelbautista]

Please show me how it goes around the chimney and skylight

[oellasawandtool]

Great Summary. Standing Seam is a great roof. Clean and environmentally friendly. We have it on our building in an historic area, serves the sentiment and flavor of the area. But more importantly, its a roof that will last, kinda important when you have solar panels mounted on top of it.

[oxigenarian]

We had a bad experience with the corrugated panels - we call it ProPanel out here (Colo). When we bought our house, the inspector didn't check the roof because it had snowed the night before and, when the snow melted, there were screws backed out everywhere due to what I can only believe was a budget build. What a mess - if you look to buy a house with ProPanel roofing - cavet emptor...

Awesome video, thanks much!

[pjmazar]

Thanks for the great video Luke.
I installed that same standing seam metal on over 40 squares of roofing on my own home. It was very, very time consuming. I love the finished look but I hate trying to clean it. I have yet to find a shoe that will stick to a wet metal surface and it is very hard to wash from standing on a ladder. Not to mention the huge difference in cost over that of a high grade of shingle. I spent more than $12, 000 on the metal materials alone. If I knew then what I know now, I probably wouldn't have done it.

[bubbasss]

This fella here is right I have a friend that has a metal roof on his house, and he had a leak shortly after installation from a contractor that he knew.
I met my friend years later with him asking me to find his leak.
It had taken me three tries to find the leak.
Here they never put a sealer down each length of a valley, and a lot of other work that this contractor had done wasn't done correctly.
We have been slowly making things right for him.

[TURTLEORIGINAL]

When I install these metal roofs with gasketed screws, I use a screw gun with a clutch set correctly, as not to overdrive the screw, blowing out the gasket. Lastly, I use an appropriate colored Geoseal tripolymer sealant bead over EVERY, screwhead, EVERY screwhead. In 35 years, I've never had a callback for a leak. Only call back, was for when a huge oak fell on their home, to redo their section damaged with new metal. Good day, sir.

[pijnto]

We have had this type of roofing, we call it V-crimp, corrugated is different in Australia over 60-70 years, we screw in the hill not valleys stops leaks.

[PNH-sfjz]

Thank you for the video which I found informative.
Metal residential roofing, in most Australian applications, is often referred to as "corrugated iron". There is a wider range of profiles available for residential, commercial and industrial applications. Other roofing materials are normally clay or cement roofing tiles. Shingles are very rarely used.
In the metal application, the metal fixing screw, with its included sealing washer, is placed in the raised arch/ridge of the corrugated roofing panel while being careful not to overdrive the fixing screw. Much easier these days with clutched drills and drivers. In this way, the water and most debris runs down the roof in the valleys of the panel and away from the raised section through which the screws are fastened. In times past metal-clad rooves were often nailed. Many of these rooves have had the nails replaced with screws, and remained otherwise intact and serviceable. I notice that some guides make the distinction between 1. wall applications - fixings in valleys, and 2. roof applications - fixings through the arch/ridge top of roofing material, as placed.
We agree that the standing seam product, with its fixing underneath the cladding, is the better option of the two. However, the cost of a standing seam, full roof installation can be a deal-breaker for some residential clients considering both products. On the other hand, the cottage in which I live was built in the 1940s decade. With five-yearly inspections, as I believe, is the least that should be done on any roofing system, the corrugated iron roof has stood up well. If the screw fixings had been placed in the valleys of the panels, as I have seen on rooves that have deteriorated with leaks, I doubt that my roof would have stood up as well over those 80 odd years.
Other comments, on this site, note that the quality of the work is, as is the case here in Australia, dependent on the skills of the contractor and their team.
I like the use of plywood/OSB underlayment, wraps and insulation in American applications and the tendency toward a fully encapsulated, conditioned envelope. With the additions of underlayments, wraps and solid insulation materials, however, I think that many problems may not become apparent for years after the primary cause of the problems commenced. It is probably true that the fewer materials placed between the external roof cladding and the ceiling mean that any problems with the cladding are likely to be identified and corrected more quickly.
We, in Australia, are also catching up, I believe, on the "passive house" applications and principles", partly because of changes in lifestyle. We are now tending to live and entertain more inside than in the past.
Your video regarding the queries presented about the placement of fixings on metal rooves is interesting and I have added a note there as well.
Cheers, Peter

[chrisvanweele]

We also use drip edge up the rake and fold over like you did on the eve. We use the Malco edge roller. If you don't want oil canning on the flat panels run half inch foam backer cord underneath the center of the panel vertically.