Standing Seam Metal Roofing Vs Corrugated Screw Down Metal Roof - Big Differences between the Two

all metal roofing is not created equal in this video we're going to look at five major differences between standing seam metal roofing and corrugated or screw-down metal roofing so that you can make a good decision on what's the right product for your upcoming project alright the first difference that we're going to talk about between standing seam metal and regular corrugated metal is the fasteners so in a corrugated metal you're gonna have an exposed fastener and in the standing seam metal roofing system you're gonna have a hidden fastener so let's start with the corrugated metal first this is probably the type of metal that most people are familiar with you're gonna take a screw and you're just gonna basically shoot it right through the face of the metal and it's gonna hold the metal to the building via this screw and you're gonna see these screws hence the exposed fastener now a standing seam is a lot different in that you can't see the fasteners on a standing seam because the screws aren't through the face of the metal on a standing seam panel the screws are gonna go into a clip so we've got a pancake head screw here and put the clip on the side of the standing seam and then you're gonna run the screw into the clip like this so the the standing seam you can't see the screws well why is that an important feature well it's an important feature because the only thing that stops water from getting into your structure with a corrugated metal is this little rubber washer and in the Midwest in the area that we're at southern indiana northern kentucky we find that these washers they're just a little neoprene washer they go bad somewhere between near 9 and 12 and you're gonna end up with leaks in your building around these screws so it is a big deal when you have a metal that would last longer than nine years but your washers are failing so you get develop links with the standing seam roof you just don't have that because there's no exposed fasteners the fasteners are all underneath of the next panel and they're screwed into this clip so exposed fastener versus hidden fastener that is the difference number one and it's a major difference all right the second major difference between standing seam metal and the corrugated metal is that the standing seam design allows the metal to expand and contract all metals going to expand and contract but the standing seam design with the clips having being screwed down the structure and not the metal panel allows the standing seam to expand and contract every day as the Sun pops out and goes back down so you can see here the clip is attached to the structure but the metal is never pinned down itself so in the standing seam system that the panel can can expand as the day heats up and it can contract and it never is going to be pinned into one place quite like the corrugated now the corrugated metal is screwed right through the face in its pin so but why does that matter well over time the metal is going to heat up and it has nowhere to go so it's gonna push on the screws or nails and over time it will actually push those screws and nails out now even on a steel building we've gone back to steel buildings several years later and the cinch straps on the seams of the panel's even in steel will have like twisted themselves out and back the screws out from the pressure of the expansion every day pushing on the screw or the fastener and then coming back down then the next day pushing on it again so having the metal be able to float through the expansion contraction cycle is is an is a good thing so all metal roofing moves with expansion and contraction because of the daytime heating and cooling so if the Sun comes out a metal roofing is going to expand and the Sun goes back in a cloud moves over the Sun the the metal is going to contract it's just what metal does and it's just a part of the nature of metal so one of the big differences between standing seam in the corrugated metal is that the standing seam allows the movement of the metal to happen because the screws are not into the metal it's into the clip so we're back to the clip idea so when this metal expands and contracts it can slide up and down the clips and it can move without breaking watertight seams that are our seals that are up around the transitions the trims the the ridge valleys it can move without becoming a leak spot now corrugated metal is fixed it's pinned down with screws and remember that little that little rubber washer that we showed you if you get a lot of movement in this metal you're going to break that seal this man to stay dry relies on that seal on that screw and there's a whole bunch of screws in this metal so movement for this metal is bad and over time we've even seen since this metal cannot it just it just can't the expansion contraction has nowhere to go over time the pushing of the metal will actually will actually back nails and screws back them out and cause a leak there so a big difference between standing seam and corrugated metal is the movement the design of standing seam allows you to move without breaking watertight seals in the system whereas corrugated metal needs to stay put but metal doesn't stay put it moves around with thermal expansion and contraction so it's another factor that's a reason why the screws fail and that trims fail valleys fail overtime on the corrugated and they don't fail on the standing seam because the movement has been built into the system with the standing seam but not with the corrugated metal alright the third major difference that I want to point out between a standing seam metal roof system and maybe this corrugated system here or another kind of art panel anything that would be a screw down system would be the trims like the ridge the eave the rakes pitch breaks pitch transitions valleys all the trims in a standing seam system are going to be interlocking and what do I mean by interlocking is we're gonna use a turndown of the metal call to him so we're gonna take the metal and we're gonna turn it down and make it him and we're gonna slide it on to another piece of maybe an offset cleat or a piece of Zee to make an interlocking joint whereas in corrugated metal you don't have any of that there's no hems there's no bread bands basically metal gets laid on top of other metal and it gets shot with a screw in it so the the joints in corrugated metal are metal on top of metal with screws ran in them that's about the gist of it and with standing seam it's going to be interlocking system of trims with with details that that will be hidden fastener and pieces of metal interlock so I guess the example that I would show of this would be right here at the either the eave of this sample here we've got a piece of drip edge and you can see on this piece of we've already got this piece turned down and it's him and it's hooked on to this drip edge so in there in our barn metal or our corrugated metal it's just laying on top of the drip edge in our standing seam this panel here has been turned it's been bent down and it's actually it's hooked into or on to the drip edge so that's an example of what I mean by interlocking trims and and how the standing seam differs from the Cory ated metal all right the fourth major difference between standing seam metal and the corrugated metal would be the seams in the panel's so in the corrugated metal it's very common to see seams just like this where you've got maybe a 30 foot run and you've got two fifteen foot pieces of metal and they're just one piece of metal laid and another piece of metal laid right on top of it screws shot right down the seams these rust they leak the expansion contraction pushes the seams open water snow ice it's just a way for it to enter the building or the home in standing seam especially with this type of standing seam that we roll form on site you have no seams we run these panels from the eave to the ridge it doesn't matter if it's a 15 footer or a hundred and 15 footer we manufacture the panel right on-site and we just have no seams so no seams means no place to leak this the standing seam is a solid sheet of metal from the gutter to the ridge and that's just not possible with long runs on corrugated metal because the the thickness and the gauge of it it's not able to to be ran out and much more than about 30 foot is about what we've seen about the longest guys can handle that metal in the standing seam is a thicker panel and it can it can be full-length it can be ran out whatever the eave to the ridge length is so no seams is another major difference between standing seam and corrugated metal all right the last and fifth major difference between the standing seam metal and the corrugated metal would be the thickness and the paint so a corrugated metal panel is going to be a 29 gauge and lonna that metal is 29 gauge and that's even with the paint so it's a very thin metal whereas your standing seam panels are gonna be 24 gauge without the paint so there's a big difference in the thickness of the metal the next thing I would say would be the paint so on a barn metal or a corrugated metal screw down metal you're gonna end up with the paint that's siliconized polyester paint and it's gonna last but it's gonna chalk and fade your 10 your 12 15 that paint's gonna chalk and fade on your standing seams you're not gonna find that kind of thing you're gonna find kynar and the kynar paint warranty is 35 years so your paint is gonna last just as long as your roof so what good is a roof if it doesn't look good even if it doesn't leak if it looks terrible after 10 or 15 years it still hasn't done you much good but the standing seam with the kynar paint will stay good looking for years to come alright so there were five major differences between the standing seam and the corrugated metal thanks for watching hope you learned something and we'll see you next time

Channel: Exterior Pro Roofing

Views: 147,805

Rating: 4.7860198 out of 5

Keywords: metal roof, metal roofing channel, standing seam metal roof, exposed fastener metal roof, standing seam metal roof vs screw down, standing seam vs exposed fastener, corrugated metal panels vs standing seam metal roofing, types of metal roofing panels, how to attach metal roofing panels, exposed fastener metal roof vs standing seam, McElroy metal, mcelroy metal roof, metal roofing, types of metal roofs, metal roofing louisville Ky, metal roofing contractrors indiana

Id: fdn6tAjemYg

Length: 9min 26sec (566 seconds)

Published: Sat Mar 14 2020