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The oil-canning rippling you show if caused by running it through the mill and the crimped edge is being stretch. One way to not have that ripple affect is to purchase metal roofing which has a shallow rib down the center of the sheet. FYI, I used to run a small Steel roofing plant in Oregon. We ran out steel roofing such as you're showing and if I remember correctly, all colored metal roofing is galvanized then painted. Simple scratches are not to be worried about, it is the deep gouges where the scrape goes through the galvanization to the steel underneath, which then would be a problem. I also used to install that roofing on homes and out-buildings, such as barns. Remember though my friends that when running the sheet steel through the former it is sheared to length. Where it is sheared the steel will be exposed to the elements, and will rust eventually but only on the eve end of the sheet as the ridge end of the sheet will be covered with the ridge cap. Your discussion on "Dissimilar Metals" is a good one. What happens is called Electrolysis when two dissimilar metals come in contact. I am not sure about Galvalume though. It usually happens when an aluminum roofing is screwed down with steel screws, or visa versa. Chalking is because of cheap paint and if it happens within five years I would be talking to a lawyer, because painted roofing should last 20 years easily. Remember though my friends all paint exposed to the sun will fade eventually, but the chalking shown in the video is bad paint. Also, if you live in area where Acid Rain happens it will hasten the chalking and corrosion. If you are considering putting on steel roofing make sure your installer is bonded and insured with guarantees on the installation. Another problem not mentioned is that steel roofing sweats, so moisture barriers must be installed underneath to keep the accumulated condensation from dripping into the attic. Some installers staple insulation batting between the rafters so the warmth from the house does not reach the steel. Some go so far as to screw down 1 &1/2" to 2" stiff insulation that the metal is then adhered to.

My experience: First, I over tightened the screws. This squashes the grommet and in a very short time it will become cracked and it will leak water. Second, in an effort to not over tighten the screws I actually didn't screw them in far enough. The result was an inadequate seal between the roof and the washer. This will cause a leak. What seems to work for me is to tighten the screw all the way until I see the grommet start to squish so that I know everything is tight and then I back the screw out slightly until the grommet isn't bulging out. So I think that over tightening or undertaking screws can be a big deal.

With all these problems of bad contractors,people should be making sure any serious amount of money spent would spend some time in escrow until verified that it was done properly. I can see this being the new normal in a few years as the "dumbing down" of our society increases.

I had metal roof for 30 years it is best I ever had, I never worried if snow would pile up, it will just go off my roof easily and a great fire prevent. I would recommend metal roof to everyone. especially for rural dwellers.

Just had Hy Grade Roofing install a metal roof at my house. Worst decision I could have made. They promised to install the roof in 4-6 weeks, of course they were late. When they finally showed up without the proper equipment and damaged my property. They are really proud of the “Quality Audit” that they do, but of course they won’t give you a copy of the audit…lol BTW -the “Quality Audit” they did at my house consisted of 2 guys coming over to pickup the leftover junk they left at my house for a month. They never even went up on the roof! Save your money use someone else!

If I pay all that money for a metal room, I don’t wanna see any flaws

Boy, watching this video really instilled a ton of confidence in me about a metal roof 😬😕. Forget about hail.

Contractors today cut too many corners and I would not trust them to install an expensive specialty roofing product.

I'm inclined to say that Galvalume hides the corrosion underneath the paint. There are hints of bulging around the scratch, at 6:03.

Geez, if I had seen this before we got our metal roof we would have never gotten it. Find a reputable builder/roofer and check them out very thoroughly. Once they tell you which company's metal they use for metal roofing, check out that company then call them and find out how they feel about your local roofing company. A metal roof is expensive, but it it is done right you only have to put it on once. We love our metal roof. It is worth pursuing.

Metal roof is the way to go. What most people don't know is that metal roofs can be pressure washed, primed and painted down the road, and you have a brand new looking roof. A roof should last a lifetime. U.S. and Canada are the only countries that use disposable throw away asphalt comp roofs on a large scale.

Had a metal roof put on my roof last year. I had the Amish put it on and if you know anything about these people, they are the most meticulous with what they do than any contractor I have ever worked with and could not be happier with the end result!

Was getting a metal roof,but now a asphalt roof after this video!

expansion and contraction caused oil canning is an installation failure and can lead to major issues down the road after it continues for some time...

Oil canning is caused by metal panels with no striations expanding and contracting in temperature change…no way around it…it’s an outcome the client needs to be made aware of and basically a waiver needed to be signed for company protection…it’s a visual issue but not a waterproofing issue…something a client should be made aware of…Other than that installer work ethic and experience determines all results …just like any other trade. Ricardo with BlackGold Roofing ..Beullton CA..

The moral of this story is the cheap come out expensive buy the top quality up front that way it last without potential quality issues. Thanks

Very interesting. Thank you for this video.

0:36 still waiting to hear dave's definition or oil-canning, but not holding out any hope.

I'd love to see a How to Fix Leaks in Metal Roof video from you.

Does metal roofing compromise cell reception?

thx

we have a 20 yr old metal roof. most of the butyl and closure strips have blown away. DIY, Do we take the cap off to do the replacement or cut and paste

So basically stick to a non painted specific steel wavey pattern and I only have to worry about rust or a bad install.

Good vid but I don't understand why the screw fastener is installer in the pan rather than the ridge? Water runs downhill, putting the fastener hole where the water gathers and runs seems counter-intuitive? Your thoughts?

There’s nothing I hate more than people installing stuff incorrectly!! If you don’t know how either learn how or don’t do it

Thanks for this info! I’m considering buying a home in the Sierra Foothills in California. The area around the house has a very large cleared fire safety zone…and the 5 acres of forest have the understory very cleared….but…as we know…fires are going nuts in Calif. My friend who works for a home building company up there said metal roofs are not fire safe. The heat and embers are drawn up the ridges and get held in the attic making your house like a fireplace. What do you think as far as fire safety? These fires have been burning everything….melting metal and solar panels etc. Even if the fire itself doesn’t reach the house…the heat from the trees around the property and embers blowing could ignite in the attic. So I don’t think the metal roof really helps and maybe it’s actually bad. My friend says comp shingles are much better. Any opinion/advice?

if I were to pay triple the cost of regular asphalt, I wouldnt want to have to inspect my roof every year or every second year. What are the areas I should keep an eye on and/or why would I do that?

so the customer pays a fortune for work, and then is supposed to get up on the roof every season to check if the roofers did the job they were paid for, this is some shit!

If you have a metal roof or have one installed on your home consider having it sprayed with rino bed liner for a much better durable and weather resistant roof

Everything requires maintenance, nothing lasts forever. Properly installed a metal roof rarely leaks with the exception of screw washers failing due to the fact the get hard, crack and deteriorate . Would you rather replace washers one screw at a time or a entire comp roof?

Biggest problem I see installing is sheets are stacked you have to be very careful taking one piece off the stack because if it drug off scratches tend to show up

Great tutorial! Subscribed!

I will stick with traditional shingle.

Getting to the installer... If you have predominate winds from any direction, if possible, start the sheet installation from the opposite end so the wind will blow over the seams and not constantly hitting a seam that over time will start lifting, getting loose, and could eventually blow off. I told my installer, with many years experience, to instally mine that way. He said he never thought of it, but would start doing all installations that way.

you do not have to go away from flat standing seem panels to prevent oil canning. you simply use backer rod underneath the middle of the panel.

Excellent!

I would like to see any rubber washer last in the Arizona desert. The dry heat here bakes the rubber even if it's not in direct sunlight.

This is what the Director at the Canadian Roofing Association has to say about Hy-Grade (CRCA): "I will say that I have researched this company - Hy-Grade Roofing - and did not take me long to find several complaints and bad reviews with the BBB (Better Business Bureau). These types of complaints would have been enough for me to pass on this contractor. I see many issues and complaints related to the many ‘Metal Roofing Companies’ who promise the world to the customer, then don’t follow through when it’s time to enforce the warranty or get issues rectified..." Not even the CRCA would use you as a contractor. I invite all potential customer to contact the CRCA before signing with Hy-grade!

I'm buying a home and trying to do some research on what I can do to prevent damage to the home I am buying. The seller had installed a metal roof but it's attached to the rafters. There is nothing to protect from any kind of damage brought by the weather. I don't know if I need to have this roof torn down and new one put up or if there is anything I can do that won't cost a fortune.

Very Good!

The main cause of”oil-canning”, is from using too thin metal. Temperature causes the thinner metals to contact or expand ! Why did you not mention that issue ??

This video Seems to me as nothing but a futile attempt from conventional Roofers trying to keep their trade and profits growing, their focus is primarily on bad install practices not so much on the superior product! Thanks to this transparent video I’m going with a metal roof. Good job guys.

Anyone have any idea how I can treat the rust that is happening bellow my wood burning chimney. I figure I need to coat it with some kind of non flammable paint like Rust-Oleum or similar product. I appreciate anyone with any ideas. Thank you.

So I'm just now getting more into metal roofing and I've ran into several problems that I'm trying to figure out one is the exhaust vent for the stove hood the vent that is sent will not seal to the metal we are using and no form or fashion it does not fall in between any valleys regardless of any measurements that we use also we have a chimney stack coming out of the roof which is I guess galvanized metal silver and I want to know if there's a boot to go over type of metal that we're using and the metal that we are using is 37 and 3/4 wide it is not standing seen it's the kind that's got the screws that show with the washers and I'm just trying to figure out do they make a flexible vent or do you actually have to come and build a say a square box that goes over the ridge and case it out and metal or curbing and then do that metal roofing is very complicated if you want it done right and these are two of the questions that I propose I believe the valley of the metal we're using cuz I can't remember offhand I just got off work is 7 in, is there a flexible vent that can be used for either one of those I mean even though the heater is gas is still getting some type of hot air coming through it yet the guys that installed the chimney which is just bare metal use silicone so it's getting exposed to heat to a certain degree so is there a plastic covering is there a flexible metal covering I mean there's a lot of stuff that I cannot find no videos that cover it

We just got standing seam nail strip roof installed and man it makes a lot of popping sounds. It's 40° outside and when the sun comes out it immediately starts making a popping/thud sound. This was put on a one-room cabin with a shed-shaped design. There is no attic space. The roof is black. The panels are about 22 ft long. I was hoping to find some content regarding thermal expansion sounds on a metal roof. Do you have a video on that? And how to problem solve/fix it.

I lived in a house with a steel roof that was installed in 1917. We had it painted every now and then, it is steel going strong. The panels are alot thicker than what you get today. To prevent icing I painted about a three foot strip by the drip edge if flat black oaint. Even absorbed solar energy on a cloudy day. Why don't home builder use lighting protection?

They put a very thin coat of paint on that metal,that’s why it’s easily scratched.

I live in south Florida near to Miami which roofing product has the best hurricane wind rating ?

What is oil canning pls explain?.

I have matal roof but it liking water rains time. How to pixie it please solution me.

Great information. I would wager that installation error is probably the majority of what you see. I often see metal roofs that were applied by crews that didn't know what they were doing.

Not so fast, for example, you need to explain the reason the paint faded or the metal corroded when the installer put copper next to galvanized steel.

Seen galvalume with a few panels brown with rust, while sections are fine.. why ? Bad galvalume batches?

How much should one take of for each dented panel?

@Thad Barnette is a total stud. I just clicked in this video because of him

Is 25 gauge galvalume thick enough that oil canning is not an issue? 29 gauge?

Make a video how to make a metal roof cone 🎉please 🙏🏻

3:20 overdrive fasteners? Great video, thanks

Curious if Galvalume is better for rusting why does galvanized have a 15 year edge rust warranty in Galvalume offers nothing. Just wondering I see roofs 50+ years old and they are galvanized and not resting but I see galvalume that is five years old and rusty

The oil canning is the metal distorting because it doesn’t have room to expand and contract. I hope you don’t teach. Painful.

the fasteners should be on the top of the ridges, no?

The first "problem" if you are a metal roofing manufacturer you make a lot of money it is a very very profitable business.

installation errors cannot be controlled

I can't pay attention as I'm focused on the camera guy in the reflection. 🤣😄

Corrosion is the nice name fro rust.

Dave Stubbs is the man

Is it possible to repaint a metal roof?

Great info guys 👍

There is a clear plastic wrapping over my metal roof that is being installed causing it to be a different color than I expected, will this be removed after the installation is finished?

Great video, regarding installation do you recommend drilling pilot holes with 5/32 bit to allow for expansion and contraction? Possibly prevent oil-canning?

Please answer this question I just put a metal roof on my mobile home but the ridge cap I used in painted gavalvanized roof cap . Was this a mistake.

What about large tree scratching? The trees have been cut down but the limbs left huge scratches. Is there a way to paint those panels to match the rest of the roof?

Holy crap, 10:00 that is not a bad install, that is pure butchery, half ass'd would have been a massive improvement.

Very purposely limited in educational value. It would have been useful to give an example of what the manufacturer recommends when you ask them what to do with a scratch beginning to show corrosion. What have you done that worked in the past. Instead nothing.

when you have shingles I see them here put wood strapping down over the shingles and then the roof .I have a carport and that is what a contractor told me here .1 x4 strapping

I am a new roofing contractor here in Florida how can I get trained by you guys on installing metal roofing

Galvanic corrosion

You missed a critical one, how to properly do penetrations correctly.

Why not make a Hex head cap that goes over the fasteners. To keep the UV rays off them directly while also helping protect the screw head. If only I was rich enough to invent it.

Isnt oil canning caused when the clips are installed and the machine dimples where the fasteners are ?

if I didn't scratch it why wouldn't installer fix the problem

Sort of helpful. Didn't go in any detail about what to do when a gavalume product is scratched. His response" Get in contact with the manufacturer." Not acceptable. Just another generic sales pitch.

Do ya think the guy in the brown shirt used to work for the gov'mint? I hear him talking but he isn't saying much that is helpful.

If you really want to do a metal roof, do your research and ask the installers a lot of questions. I’m still doing a metal roof!

What IS oil canning? flattening the panel??

Simple solution to all of the problems of metal roofs: Choose a quality company, to install a high quality architectural, asphalt laminate shingle roof. Much more cost effective, and getting it serviced (if needed) is much easier and cheaper down the road.

Hmm.. have you checked out the metal roof called InterLock? Alot of these issues I think are avoided using their custom metal roofing system. Plus they offer a lifetime warranty, can't beat that.

I was sold on a medal roof but more and more im thinking just getting traditional shingles. I dont want to wash my roof every year. Worry it getting scratched gouged n rusting like a car. Faded paint ect ect. Spending double the money n sounds like more screwing around. A gd shingle roof can get you 20yrs n no bs.

Can a black metal roof be unventilated? Consequences?

My biggest problem with metal roofing is that there is no way at all in the universe to walk on it!

My take away is these guys sell shingle roofs.

My metal roof "identifies" as a shingle roof and wont let me do metal roof maintenance on it. Calls me a HATER and wont reason.

your oil canning lecture . confused me. why not say " thin metal panels tend to oil can if not installed right. "? thank you for the info.

When steel companies create videos like this I always think they just want to position themselves to sell more material. Some good information though guys!

I'm a super sheeter

What about condensation over an RV Port?

why are metal roof installers here putting metal roof over the old shingle roof and then the shingle roof melts under and I have seen the tar dripping down over the trim boards and it looks ugly .I also saw a neighbors metal roof fail because the rubber type washer started to degrade and the screw started to work a bigger hole in the roof panel and finally in a wind we had here rip loose

Cell phone reception is a issue living in a metal roof house.

Wow, why would a contractor use copper on a steel roof, really bad business...