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Roofing | Shingles vs Metal and the Real Problems with Both

so I'm on a roof because today we're

gonna be talking about roofing and

choosing the right roof for your remodel

or your building project I'm gonna go

ahead and say it upfront that if I were

building a house for myself for the

performance and the cost I would choose

architectural shingles on my own house

so in this video we're gonna do a little

comparison of the two most common types

of roofing and residential that's

shingles versus metal so there's two

common types of metal roofs ribbed with

exposed fasteners called v V or AG panel

and another type with hidden fasteners

called standing seam which is also used

in commercial applications pretty

commonly of these two types the standing

seam is far superior and far more

expensive sometimes double to triple the

cost it attaches to the roof with thin

clips that are covered by the next row

of metal and these clips also allow the

pieces of metal to slide freely a small

amount and this allows the metal to

expand and contract with heat without

damaging the fastener or the roofing on

the other hand screw down type metals do

not have this play in the fasteners and

can sometimes work the screws out or

even break them from the pressures of

expansion and contraction against them

and I've actually seen screws completely

turned out of a roof

due to this expansion and contraction of

the metal pushing against them and

sometimes dozens of them push completely

out of the roof so this is a real thing

by the way

another issue that I've seen with the

exposed fasteners that in order for the

fastener to seal the penetration through

the metal they use a rubber gasket these

get dry rotted and cracked and should

really be replaced every 10 years or so

for all these reasons I'm not a huge fan

of the type with the exposed fasteners

and I'd recommend that you use ice and

water shield under it especially if it's

on a low pitch so if you want metal and

you could afford it I would recommend

the standing seam but it is quite a bit

more expensive

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so there's a couple other issues that

I've seen with metal roofs that I want

to talk about for just a second as well

one is that metal roofs are very slick

especially when they get a little dust

or pollen on them and for that reason it

is very dangerous to get up on a metal

roof if you have to clean your gutters

or anything like that I would not walk

on a metal roof unless it was a very

very low pitch and secondly since it is

slick snow tends to slide down these

metal roofs as it melts and can

sometimes rip the gutters right off your

house if you don't have a snow break

installed on your metal roof and this

actually happened to a house of mine

that I lived in once and big snow melted

down rip my gutters off boom and one

last note about metal roofing is there

is somewhat of a debate between the

roofers I use anyway of whether metal

should be screwed down directly to the

plywood layer of your roof or whether it

should be spaced up 3/4 of an inch on

pine strips leaving an air gap between

the bottom of the metal and the top of

your underlayment so that's a debate

that I've heard roofers we use go both

ways I'm not really sure what's best but

I love to hear your comments on that

so next we're gonna look at shingles and

there's two common types of shingles as

well there's a three tab shingle which

is a less expensive single layer in a

more traditional looking shingle and

then there's architectural shingles

which this is what I'm sitting on here

that have a double layer to give them a

3d effect and they don't have any tabs

they're one solid piece shingles are a

great option unless you live in a very

high wind zone and they cost roughly

one-third less than metal with exposed

fasteners if they're installed correctly

they can give you a great performing

roof the most important thing with

installing them correctly is that the

nails are not over driven and that they

are installed in the nailing area of the

shingle where it is the thickest and it

overlaps the previous row of shingles I

highly recommend atlas pinnacle shingles

to our clients because they have an

extra-wide nailing area so it's easier

to hit shingles do not work great on low

pitch roofs in this because wind driven

rain can actually blow up under the

shingles and get down through the nail

holes you can use shingles on a low

pitch but again you would want to use

ice and water shield underneath the

shingles and this would seal up the

penetrations of the nails I also

recommend that you use ice and water

shield around the eaves the overhang

on shingles because water that comes

down your roof melting can refreeze on

your overhangs and create a dam that

would cause water to pond and then again

the water would back up under the

shingles and get under your roof thanks

for watching my video I hope it's helped

you make a decision between metal or

shingles and the different kinds of

those on your project

you

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