Comp shingle for old home

check out metal roofs, no tear off saving $$$ + a long life depending on the grade of metal used!!
The metal roofing folks are more crooked than the shingle folks, despite supposedly less work. The quotes I got were about 50% higher.
 
The initial cost is higher...but the roof lasts much longer...
Is there any data that supports the life claim?

There is no perfect solution, what maintenance is required?

People love to hate asphalt roofs, but it is the prevailing technology around here. I sense the metal roof is a "problem for every solution" marketing plan.
 
The initial cost is higher...but the roof lasts much longer...
Yes I get that. Yet they tout at the same time how fast it is to do. Does not compute. They can’t seem to justify based upon materials cost when pressed. So like many trades it’s just taking advantage of folks because they can. Not my favorite sales approach.
 
The initial cost is higher...but the roof lasts much longer...

Frankly, the cost differential is much less than what you would think.
In the example that I gave, the same group that put my roof on also does metal.
I also had them quote the metal.
In my case, I could have gone metal for right around a grand difference.
I really wanted to go that way, and was seriously considering doing so.
The problem was that Mrs. Tdbo threw such a fit.
 
I have a 15 year old roof and am one of the last houses in my neighborhood that hasn't been re-roofed. Last year I got some quotes and used the GAF Quick Measure to get my own materials estimate and validate the roofing bids. It's $20 for the report but to me was worth it.

https://quickmeasure.gaf.com/guest-home-page
Thanks, if I decide to re-roof the entire house, I'll do that.
 
OK here is one quote. I'm not ready to pull the trigger at all, but the info can help me figure out if I want to simply repair stuff on the roof, or get a new one.

For recovering the entire roof, the guy wants $10,200. For just the repairs of the spots I showed him (and a couple others he spotted), he wants $1750.

Using the idea that I can get 5 more years out of this roof with just the repairs, that is about as much per year as doing the roof recovery, for 30 years.

So I'm not sure I'll be saving much over the long run, by simply repairing a few spots, and there very well might be leaks that develop over the next five years that also need repairing---which problems wouldn't develop if I were to pay up and get the entire roof done now.

OK, what do you folks think about that?
 
Is there any data that supports the life claim?

There is no perfect solution, what maintenance is required?

People love to hate asphalt roofs, but it is the prevailing technology around here. I sense the metal roof is a "problem for every solution" marketing plan.
But they won’t wind up your name like in the CA fires 🔥
 
OK here is one quote. I'm not ready to pull the trigger at all, but the info can help me figure out if I want to simply repair stuff on the roof, or get a new one.

For recovering the entire roof, the guy wants $10,200. For just the repairs of the spots I showed him (and a couple others he spotted), he wants $1750.

Using the idea that I can get 5 more years out of this roof with just the repairs, that is about as much per year as doing the roof recovery, for 30 years.

So I'm not sure I'll be saving much over the long run, by simply repairing a few spots, and there very well might be leaks that develop over the next five years that also need repairing---which problems wouldn't develop if I were to pay up and get the entire roof done now.

OK, what do you folks think about that?
Is the bid for a complete tear-off and replacement or adding another layer of shingles on the existing shingles?
If it’s for the latter, personally I’d get a new roof. You’ve gotten your money’s worth out of the old one.
What’s the warranty for repair vs. replace? It’s just a matter of when you’ll have additional leaks on a roof that old.
 
It is for covering the current shingle with new shingle. The same roofer wants an additional 5 grand to tear off the old shingle first, and then lay down the new stuff.

Is the bid for a complete tear-off and replacement or adding another layer of shingles on the existing shingles?
If it’s for the latter, personally I’d get a new roof. You’ve gotten your money’s worth out of the old one.
What’s the warranty for repair vs. replace? It’s just a matter of when you’ll have additional leaks on a roof that old.
 
It is for covering the current shingle with new shingle. The same roofer wants an additional 5 grand to tear off the old shingle first, and then lay down the new stuff.
Since that’s the case, I’d compare the cost of a tear-off vs. the cost of a repair.
Putting on a new layer of shingles over the old one isn’t necessarily wrong, but it’s definitely not a best practice.
 
i would not overlay. It may not even be allowed by code.

Are we talking 3 tab or Laminated? What year warranty? How many Squares?

BTW don't let them charge you the same squares off and on.
 
The one roofer who has given me a quote said the shingle is 30 years, whether it is re-covered or with the original shingle torn off and then new shingle laid down.

I do not know about 3 tab or laminated. By squares, you mean how many square feet? 1600.
 
For the folks who are saying don't overlay or re-cover, why not? Does the original shingle come off, and then tear off the new stuff, like old paint if you don't remove it before re-painting a car?
 
For the folks who are saying don't overlay or re-cover, why not? Does the original shingle come off, and then tear off the new stuff, like old paint if you don't remove it before re-painting a car?
The weatherproof element of a roof is actually the roofing felt and flashing, the shingles are what protect it. So your waterproof barrier is already compromised. I miss-typed in my original response. Personally I'm not a fan of putting on another layer of shingles. It's not a best practice and isn't aesthetically appealing.
 
I do not know about 3 tab or laminated. By squares, you mean how many square feet? 1600.

Laminated or Architectural shingles are much more common, 3 tab are exactly what they sound like there are 3 tabs per shingle. generally 3 tab are cheaper.

A square is 100 square feet. so if the house roof is exactly 1600 sq feet that's 16 squares. Remember we are talking about roof area. not house area, as pitch goes up so does area. if the house is steep (over about 9/12) or two story that might also add cost.

Generally waste is 10% for a straight gable, 15% for a hip so a 16 square roof would be 16 squares off and 17.6 on for a gable.

If the roof is already leaking then there are likely problems with decking/penetrations and felt/flashing. adding a second layer wont fix that. Also a overlay will retain any irregularities and may be more subject to damage from foot falls or weather. doing a tearoff/new felt and fixing decking also gives a chance to update venting if needed.
 
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If the roof is already leaking then there are likely problems with decking/penetrations and felt/flashing. adding a second layer wont fix that. Also a overlay will retain any irregularities and may be more subject to damage from foot falls or weather. doing a tearoff/new felt and fixing decking also gives a chance to update venting if needed.
This is an excellent point. No doubt some of the decking is in need of replacement and the venting could likely be updated. Since I'm spending OP's $ I'm going to go back with a radiant barrier of some kind as well since they are in sunny CA. :D
 
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