Black Metal Roof - Dumb Idea?

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[BanBiofuels]

For California and other earthquake prone areas, metal roofs are a good choice because they are relatively light in weight. Clay and concrete tiles look great, but on a roof they are like a giant hand pushing down on your roof at all times. During an earthquake, when your house structure is swaying back and forth, you do not want a giant hand pressing down on you at the same time. Metal is also fire proof, something you cannot say for asphalt shingles and cedar shakes.

[JamesBiggar]

All we install is metal now. Replacing your roof every 15-20 years or less with heavy, black asphalt shingles is stupid when you can pay a fraction more for 3X the lifespan and far less stress on your roof. We install G-rib for almost the same cost that most are charging to strip and replace shingles here, and we're usually done roughly a day sooner because a metal roofing panel can cover more area faster. I've measured the temps radiating off of both while baking on them on hot summer days, asphalt shingles are the worst by far - if you can even walk on them without damaging them. Metal roof coatings are engineered to reduce heat absorption, even the blacks. Our black isn't really black, it's more of a charcoal/dark grey. It's a no-brainer for homeowners. The only downsides are that it's more dangerous to work with and metal roofers are kind of screwing themselves out of future work. But there's more to do than roof. Get a journeyman cert if you can, kids. Don't sell yourselves short.

[VideoNOLA]

3:45 He admits that "Yes, black is the worst possible choice of metal roofing with an SRI of only 25." Any other conclusion is wishful thinking.

[JacobAFarmer]

My metal roof is dark bronze - almost black. I have tubes in it to capture heat for hot water and heating.

[miltonmiller]

Matt, I am a boat builder and designer. You would be surprised to learn how much your videos help with the boat design. The comprehensive approach to each subject allows me to choose strategies and even tho the equipments themselves may not be the same, I can usually find a marine equivalent for the purpose at hand. I know your target market is residential home construction for the most part, but I think you should know that some people in other fields are also paying attention! Thank you!

[bholowick]

Not a roof, but we have a 40' shipping container we use for storage. It was initially matte brown/red, and it would get super hot inside in the summer. I painted it gloss white and now it is essentially ambient temperature inside. White is far superior from a pure thermal loading perspective. But hey, it's not my house! :)

[billgateskilledmyuncle]

I have a white metal roof. I was really thinking things out when I made this decision. My garage is uninsulated and the difference was amazing.

[Rocscrawler]

I have had TWO Jeep Wranglers with black hard tops. I live in the "LAS VEGAS" area. HOT DESERT ENVIRONMENT!! As soon as I arrived here, I started experimenting around with the color of the hard tops as my A/C (air conditioning) was struggling to keep the inside cool in the summer months. Black color outside of the hard top equated to 175 degrees inside on the ceiling of the hard top. I added insulation inside and I did not see as significant reduction of the inside temps and the ability of my a/c to keep up. The second I painted the outside of my hard top WHITE, my inside temps dropped from 175 degrees to 125 degrees. NOW, the air conditioning could keep up and the ambient air temps were maintained with "HALF" the settings of the A/C unit. Now my a/c could and would keep up with the outside temps even if they were over 110 degrees outside. Black outside color of a roof (house/car/ANYTHING) does not make sense to me unless you live in ALASKA!!! Use a laser temperature measuring device and TEST EVERYTHING!!! Black absorbs heat and white reflects heat.

[scottwilliams]

I don't know about black metal roofs or asphalt but I do know replacing a windshield in a black vehicle in an asphalt parking lot, at 3 o'clock in the after noon, wearing a black shirt can help build character as sweat beads evaporate forming a thunder storm warning.

[MrJramirex]

Black roof looks amazing but not sure if I would go choose it in a hot climate. Too hot, bird droppings, polen, dust.

[speedRacer]

Looks cool! .... Still wouldn't buy a black roof here in the south.

[joemccauley]

Canadian research people found one of the biggest contributers to attic temperature was roof color way more then ventilation

[caparn]

If you put a black roof on a house in a hot climate you are making an oven.
You could fry an egg on that in the summer.

[VinceCannavaII]

Initial guess: it's going to look dirty every day, you'll see a dent 6 miles away & it's going to get so hot..you'll be finding cooked pigeons on there in the summer. I guess we'll see.

[jonathanrogers]

Yes. Back is a bad color choice for a roof In Texas. The paint will be fine, but it will be soaking up tons of heat that you will have to offset with more insulation. A score of 22 out of 100 on reflectivity is terrible.

[guytech]

Max Temp of XPS\EPS is about 170F/76C. I suspect a 100F+ Texas summer day, the temperature under that roof is going to be more than 170F!

[JohnWeland]

You could have used the black roof to heat pipes to offset water heating. If/when I reroof I am either doing metal or Tesla Solar roofing.

Hope to see videos of the "trim, " work on this house. Trim, cabinets, countertops etc . It's been fun watching the progress

[MARKE]

This is a good example of sacrificing science for visual Aesthetics.

[fritz]

He answers the question at 3:35
SRI index Black 25 White 100 = Yes it is a dumb idea.

[rogerhodges]

That black roof is also going to expand and contracr more than a lighter roof. This will result in more movement and more stresses on fasteners and anchors holding the roof in place.