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Joined: Nov 2018
Posts: 16,904
Campfire Ranger
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OP
Campfire Ranger
Joined: Nov 2018
Posts: 16,904 |
I know there are a lot of roofing experts here and would appreciate your expert opinions.
My comp roof is 32 years old and showing signs of age. Last few years the roof has been losing sand and the shingles are fried crispy in this California sun. Time to take care of business, can't have a leaky roof.
I'm getting bids all over the map from $8900 for a basic 30 year composition overlay and then up to 22K for a complete strip 50 year roof adding a ridge vent.
Advice and insights would be much appreciated.
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Joined: Oct 2004
Posts: 4,180
Campfire Tracker
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Campfire Tracker
Joined: Oct 2004
Posts: 4,180 |
How many layers and how curly?
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Joined: Nov 2018
Posts: 16,904
Campfire Ranger
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OP
Campfire Ranger
Joined: Nov 2018
Posts: 16,904 |
Not a big house. Single story, hipped roof, 33 squares.
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Joined: Sep 2017
Posts: 2,795
Campfire Regular
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Campfire Regular
Joined: Sep 2017
Posts: 2,795 |
You need advice from your local area. In northern climate strip and replace.
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Joined: Feb 2008
Posts: 293
Campfire Member
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Campfire Member
Joined: Feb 2008
Posts: 293 |
50 year comp is heavy stuff. A 30 or 40 year architectural is probably more like it.
Rick
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Joined: Dec 2004
Posts: 9,743
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2004
Posts: 9,743 |
What's it look like from your view in the attic?
32 years is rather aged. Could have rotting plywood, insulation may have been wicking up multiple leaks for years.
As asked, how many layers?
Need more info.
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Joined: Mar 2011
Posts: 1,947
Campfire Regular
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Campfire Regular
Joined: Mar 2011
Posts: 1,947 |
Don’t do any type of overlay whatever you do have it cleaned off completely so that the sheathing may be accessed use synthetic underlayment and then whatever roofing system you’re comfortable with
Only Dead Fish Go With The Flow
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Joined: May 2020
Posts: 2,638
Campfire Regular
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Campfire Regular
Joined: May 2020
Posts: 2,638 |
I would never roof over that. Do your homework on roofing companies. Get old material torn off as someone above mentioned.
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Joined: Jun 2004
Posts: 34,094
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 34,094 |
Do not overlay, strip and replace.
Give a man a fish and he eats for a day. Give a man a welfare check, a forty ounce malt liquor, a crack pipe, an Obama phone, free health insurance. and some Air Jordan's and he votes Democrat for a lifetime.
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Joined: Dec 2005
Posts: 3,019
Campfire Tracker
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Campfire Tracker
Joined: Dec 2005
Posts: 3,019 |
Not a big house. Single story, hipped roof, 33 squares.
Is the "33 squares" calculation from your measurements or your contractor(s)? Just curious, 33 squares will cover a 2550 sq ft home with a 4/12 pitch that has 12 inch eave overhangs. That's adding a 10% buffer which is common. Does that sound about right? If you want more than a random guess you're going to have to offer more details.
Padded VA Hospital Rooms for $1000 Alex My ignoree,s will never be Rock Stars on 24 hr campfire.....Like me!!!! What are psychotic puppet hunters?
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Joined: Nov 2006
Posts: 1,341
Campfire Regular
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Campfire Regular
Joined: Nov 2006
Posts: 1,341 |
What others have said. Do not overlay. Strip off the old ones, use synthetic felt and 30 year Architectural shingle. GreggH
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Joined: Dec 2010
Posts: 14,408
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2010
Posts: 14,408 |
i am not a roofer but i play one on the internet. i personally would not do a shingle over unless i was really stretched for cash and the roof was leaking. i would rip and replace with a 30 year unless i was 30 and had a lot of money. a properly installed 30 year shingle over a properly vented attic should last at least 30 years. thats here in PA where it gets hot and cold and rain and snow. i redid one on my camp a couple of years ago that my dad installed in the late 70's. it looked like hell but didn't leak and it was a 4/12 pitch.
My diploma is a DD214
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Joined: Dec 2010
Posts: 14,408
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2010
Posts: 14,408 |
and if you're curling a lot, i'd try to vent it better
My diploma is a DD214
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Joined: Dec 2005
Posts: 10,253
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2005
Posts: 10,253 |
I thought that if you laid shingles over shingles there was no warranty.......................
"...A man's rights rest in three boxes: the ballot box, the jury box and the cartridge box..." Frederick Douglass, 1867
( . Y . )
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Joined: Jan 2020
Posts: 5,161
Campfire Tracker
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Campfire Tracker
Joined: Jan 2020
Posts: 5,161 |
Shingles make a good base for putting down a metal roof. Personally I wouldn't put shingles on my dogs house.
Life is good live it while you can.
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Joined: Dec 2005
Posts: 3,019
Campfire Tracker
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Campfire Tracker
Joined: Dec 2005
Posts: 3,019 |
Shingles make a good base for putting down a metal roof. Personally I wouldn't put shingles on my dogs house. +1
Padded VA Hospital Rooms for $1000 Alex My ignoree,s will never be Rock Stars on 24 hr campfire.....Like me!!!! What are psychotic puppet hunters?
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