I am looking at replacing a cedar roof and it is down to either replacing
cedar which am not crazy about, a new kind of rubber roof made from recycled
tires that is apparently gaining popularity in the North West or a steel
Thoughts from anyone?
I was told the rubber smells for some time and that the steel is prone to
leaks in difficult areas.
I put on a Gerard Roof six years ago. Denver area. Really like it.
About the same cost as cedar but the insurance paid it for me.
Also got a 27% discount on my homeowners because of it's hail resistance.
I put on the tile type, Cyprus color. Most that see it can't believe it
If you walk on the roof at all I suggest you get the option that
prevents denting. Without it, if you step in the center it can pop in.
Easy to remove but takes a couple minutes.
One of the guys at work just had a new metal roof put on his house, I
think they call it "Galvalume" (sp) or something like that. They have
a machine that they bring on site that forms the seams and rolls the
sheet ends over the drip edge. It has no exposed screws and comes with
a 100 year warranty against leaks / corrosion etc.
He had a very reputable local roofing company do the install and while
it wasn't cheap (probably about 2-1/2 to 3 times the price of
shingles) it does look very good and should be the last roof he will
Unless something better comes along in the next two or three yaers I'll
be having the same thing put on my house.
Depending on local conditions, insulation may need to be applied to the
roof anyway (icing issues to deal with). Any such insulation will cut
down or eliminate noise.
Stone coated Steel shingles which the other poster was commenting on
look like regular shingles until you get REALLY close to them. There is
NO noise issue with stone coated steel shingles and they come with 40
and 50 year guarantees.
As good as steel roofs are, no roofing system is perfect. Standing
seam roofs have problems over time. Repairs are expensive, leaks are
difficult to trace.
Most steel roofs have problems if you walk on raised patterns on the
surface. You MUST walk only on the part that are directly in contact
with the roof deck. On a roof that is styled to look like cedar shakes,
there are no such areas. On roofs that are styled to look like 3 tab
asphalt shingles, or architectural asphalt shingles, there are flat
spots that are safe to walk upon. See www.decra.com for more info.
Darn - I like the look of the standing seam roofs. Do they leak more or the
same as a shingle roof? Or is it that they leak much more infrequently, but
it's a bear to trace a leak and fix it when they do?
What other problems do they have? How do they stand up under ice and snow? (I
thought they were better - no ice damming and the stuff slides off..)
Finally, what are the things that stick out of the standing seam roofs (esp.
commercial) that I see about 2 or 3 feet from the eave?
They shouldn't leak at all, unless you somehow get standing
water nearly the depth of the seam.
The downsides are that they're expensive, and slippery.
If you get snow and ice, they tend to shed it all in
one big avalanche, so if you have an entry or walkway
under the eaves, you should either build a pediment,
or put on ice-guards. (Which are probably what you're
seing near the eaves.) They transmit heat and noise
to whatever's under them better than asphalt shingles,
but that shouldn't be a problem if you've got insulation
and sheetrock under them.
As I said, no roofing system is perfect. Climates have significant
impact on all roofing systems, so what works GREAT in New Hampshire,
Stinks to high heaven in Louisiana.
Frequency of repairs is an unknown, frequency of problems is an
unknown. The statement came from a commercial building engineer for a
I have little doubt that a properly installed steel roof will provide a
VERY VERY long life, long enough to offset its higher installation costs.
The statement about standing seams still seems valid. If a standing
seam roof develops a leak in the seam, unless the back of the steel is
visible from the underside, it will be difficult to isolate the leak
until it is necessary to replace one or more panels.
Ice and snow is an unknown to me as I live in an ice and snow free
zone. In 26 years here, it has snowed once, and we have had freezing
rain a couple of times. Once or twice it has gotten cold enough that
unprotected pipes in attics froze.
The slick surface of the standing ridge roof SHOULD mean that ice and
show do slide right off once he steel warms up a bit.
Dont't know about the eaves feature you are discussing
For more on this topic, see the following
Not all metal roofs are alike, and the QUALITY of the installation
makes a BIG difference.
Just as with Asphalt shingles too, you can get a wide variety of
product grades and installers range from sh?t to superb.
This is a HIGH wind problem that we suffer in Hurricane Alley, as do
some staes in the mid-west that are prone a part of Tornado Alley.
I asked him today about the noise, he said that during heavy rains it
is much louder than the shingle roof but not so much as to be a problem
to him. Personally I like the sound of rain falling BUT I suppose it
could be a negetive, roof style and insulation would have an affect on
how noisy it is I expect.
That Gerard roof looks REALLY nice...I'll be taking a look at that too.
No noise problem with mine. When they were installing I asked about
adding ventilation and was told that the roof was much cooler than shake.
It can be installed over your old roof.
To get the reduced hail insurance I had to sign a cosmetic wavier. No
problem there. I took a rock about the size of a brick and threw it at
a panel as hard as I could. No visible dent on top. Turning over the
panel you could see a little dimple. They seal very well. Each panel
overlaps the one below it and it is nailed from the side into 2x2s
fastened to the roof.
These sites show a little about how they are installed:
The 1x4 and 2x2 below the shingles:
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