if you have a 10-yr roof, does that mean you should replace it in year
10? or, does it mean you have a 10-yr warranty, but the roof could
last for 15-20+? like my truck has a 3-yr warranty, but I hope it
lasts about 3 times that!
Are there any tell-tale signs of when to get a new roof? lots of
leaks? just one leak?
I won't even wait until one leak springs out. Check the shingles.
How much coating material is gone? Are they curling up bad?
Cracking? etc., etc. If you wait too long, it'll cost you more.
If under neath sheathing suffers water damage.... for one.
Appearance how? Mine looks bad due to stains, but the shingles are still
flat, still have most of their coating. It was 15-year roofing, installed
during initial construction 17 years ago. I'm wondering how soon I shuold
plan on redoing.
Also, is it OK to roof over the original shingles the first time? Or should
I strip first?
Stains can be a indication of a problem, but other stains are not.
There are a lot of potential visible problems, but it takes someone with
experience to spot them all. This is a tough one since finding someone who
is impartial to take a look may not be easy. Maybe check out a certified
home inspector and see what they would charge. It would be worth the cost.
I recently had hail damage. The hail roofers were all over the place,
and I am sure they would not find a home not damaged. I called my insurance
company and they sent their man out. He said I had damage. I had not seen
a thing. However he pointed it out to me and sure enough it was damaged and
they replaced it for free. I ended up with a better roof than I started
BTW my first car had a one year warrantee, I kept it for 16 years
195,000 miles with very few problems. Warrantees have very little to do
with useful life.
As the others have suggested, don't wait for a leak.
Thanks for your replies. We have not had any leaks coming through just
the middle of the roof, but have had leaks around flashing, etc. From
one leak by the chimney, I think it was b/c the flashing was not
So, it sounds like the key indicators are:
a) does the tile still have coating on it? (ie-not smoothed, but still
bumpy with little grains)
b) are tiles flat? not curving, etc.
Also, from the inside, the decking looks good. I don't see any stains
or leaks, but is this test realiable as the damage would be on the top
of the decking?
Also, it sounds like a "10-yr roof" can last longer? In trying to
search the Web for this, I can't find any 10-yr shingles, is there
such a thing?
On Sat, 17 Jan 2004 04:27:33 GMT, "Weezer"
If you have stains on the north side only, or other places shielded
from the sun, it can be a form of mildew. Those are not harmful and
they can be removed with a product carried by better building supply
stores. (Can't remember the name, maybe "Mildew-X" or "Mildex"?)
If you strip first, the replacement shingles will last longer.
I'm not sure appearance tells the average homeowner [like myself] when to
replace. I had no stains, or curling on my 18 yr. old roof, and couldn't see
any problems. However, I developed a leak in a valley that roof repairs by two
different companies didn't fix. So I replaced my 20 yr guaranteed shingles last
If you want to avoid leaks, I agree with others, a professional inspection will
probably be necessary; and likely no one will tell you that you don't need a new
roof now. [Catch 22, if you can't do it yourself.] So I would be making plans
according to my budget. ;)
Appearance or looking? I would assume that when anyone
mentions appearance one would need to get on the roof and
look at it from 3-4 feet not from 20 feet away on the
ground. A leak in the valley probably has nothing to do
with the life of the shingles, especially if the valley is
sheet metal. What did the sheet metal look like? any
holes, rust? The valley shouldn't leak even if the shingles
fail. I have a good sheet metal valley underneath my
interlaced shingless (no metal seen). You just had a poor
I'm an over the hill female, I have to trust what I'm told. :) The valley was
replaced due to where the water was entering the one wall. No water tests were
done, and there was nothing they could see... I was told, without removing, etc.
Same type here.
I may have had 2 "poor" repair jobs on the valley, but 18 yrs for the original
roofing job, I consider pretty good. And since all of the experts I got quotes
from wouldn't guarantee a third *repair*, I decided to go with a new roof.
The *source* of the leak was never determined, so they [all 3] said. :-/
If the shingles lie flat, like yours, and you don't see any
bare spots on any of the shingles you are ok. If you see
sand comming off the shingles sufficient to let the black
base show, it's time to reshingle.
Most people will tell you not to shingle over the original
shingles. But it is done all the time. If you do that you
need to make sure that the wood sheathing is in good shape
and that the additional load won't be a problem. In most
cases, neither of those are a problem. The down side is
that shingles need to be the same size and type as the
original shingles to fit well and they may not lie quite as
flat as if the original shingles are removed.
Just throwing my 2 cents in. My roof appeared to be still in good shape
I found some stains on the wood in the rear of my shop. Checked it and yes
water damage. My shingles were laying flat, do apparent damages. But after
looking found the very first (reversed) layer had cracked along the shingle
openings and the paper had dried out and was brittle (Florida Sun). So even
they look perfect there can still be leaks. I learned a good lesson there!
"George Elkins" < firstname.lastname@example.org> wrote in message >
A select few people just wait for their roofs to fall in under their own
weight of disrepair, but for the most part, most other folks get new
roofs when water starts showing up in some fashion on their celings or
in their attics. That's pretty much the one telltale sign a lot of
people go by. The other is when their shingles start looking really
moth-eaten around the edges.
The 10-year thing you mention is *generally speaking* how long those
shingles should last under normal circumstances. And really, that's
about as far as it goes, given that there's a LOT more to a good, sound
roof than just the shingles. 10-year shingles with piss-poor materials
and workmanship beneath it might only give you 3 years or 5 years -- or
maybe even 10 if you're really lucky -- of not ending up with a wet
ceiling for a somewhat large variety of reasons.
Also, you *definitely* know it's time for a complete scrape-off down to
the bare wood when you have ANY number of leaks and there are already 3
layers of shingles up there.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.