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Roofers..contractors...
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Just a rough estimate of how many square of shingles needed for an 1800 SF home with a 4/12 hip roof with an 18" overhang.. soffit. Have at it.
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https://roofingca.owenscorning.com/homeowner/thingsyoushouldknow/howmuch.aspx
Rough guess is 20+ extra ridge caps for the hips & starters for added eaves. A roofer should give you a lower price with a 4/12 pitch, as it is much easier to walk on. They will charge for what they use, not the actual size. Don't forget the underlayment. Many new products instead of the old tar paper. Depending on where you are, look into ice shield for the bottom edge.
Go metal roof and never look back.
Probably exactly what will happen. I've had estimates from 22 to 32 square from roofers that showed up to do it. Lowest estimate for a tear off and replace in spring.. 6900 or 300 a square..23 square. Highest estimate..are you ready... 12,000 for the same. both 30 yr arch shingles. Folks try and take advantage of an out of stater. I ask that guy if he came to the right location...
I have about the same size home. Went with Metal roofing.
$5500.00. All Amish Crew. Done in 4 hours.. Even redid the back porch, and a Gazebo too.
We love the rain on the roof. Just have to turn up the TV a it if we are watching
22-24+ square depending on dormers etc. Rough square footage is 2200 sq ft. There will be waste at the hips, double row at the bottom some coverage loss at the ridge then ridge caps. If you have dormers with valleys that will add material. 300 dollars per square for removal, installation, material and clean up is a decent price.
Do not use metal unless it is standing seam, no screws or fasteners showing.
You do not live in a barn and you will thank me later.
Cost more but worth it. Do it once and do it right.
I know I will get a butt chewing for say this but let'er rip.
Oh and yes 22 square +- a little depending on how roof lays out and how roofer does things.
With an architectural single I ran metal valleys usually with a standing V rib down the middle. Looked pretty sharp but also made a water break and keeps the water in the valley better. Point is a metal valley will use a little less shingle material but it takes a little more time to put in then a lap valley using regular 3 tab shingles and actually cost a little more. Even a lap valley I use an extra tab between shingles.
Watch out for this.
Roofers sometime estimate way too high.
When they get through and have lots of left over material, guess up foots the bill.
Butchdog-Right on my friend. I have industrial buildings 35 + years old with a Butler MR-24 standing seam roof. Great product.
Using asphalt shingles is just a step up from a thached roof.
My metal roof is guaranteed for 50 years.
Roofs covered with barn metal will eventually leak. Expansion and contraction will wallow out the screw holes and the weather will cause the "washers" to rot.
You can get by with metal buildings since the metal is screwed to purlins that will rock back and forth during heating and cooling process. Wood not so.
I was just going to post about a standing seam roof when I seen your post. I'm not much on screwed on metal roofs for houses. The standing seam IMO is the way to go for a metal roof on a house. Pricey though.
Agree on the metal valleys, shingles were meant to be laid flat....
If you lap the shingles in a valley, run 3' wide rubber ice & shield down the valley first. I don't know where you are, but if it's a new roof, then $45 - $55 A square should cover labor.
My brother in Finland got a 100 year warranty, I bet the roof outlasts him 😁
"Fastenol" carries over sized screw bolts with over sized rubber grommets for screw down roof replacement fasteners.