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Homeowner Forum / Construction / November 2003



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Roofing felt?

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LBaker - 29 Nov 2003 03:22 GMT
Were building a new house here and it's under roof and felt now. With recent
rain we've had a large amount of water get through. They did layer the felt
properly. I think we my have gotten a bad batch of felt. Here's some pics.
http://users.adelphia.net/~lbaker12/images/roof1.jpg
http://users.adelphia.net/~lbaker12/images/roof2.jpg
Bobby - 29 Nov 2003 04:51 GMT
"LBaker"  wrote in message
> Were building a new house here and it's under roof and felt now. With recent
> rain we've had a large amount of water get through. They did layer the felt
> properly. I think we my have gotten a bad batch of felt. Here's some pics.
> http://users.adelphia.net/~lbaker12/images/roof1.jpg
> http://users.adelphia.net/~lbaker12/images/roof2.jpg

I would be willing to bet they didn't dry it in correctly. Is this at a
juncture?  Where a lower roof meets a wall, or anyplace where the roof would
need step flashing & counter flashing.

It's highly unlikely any felt could be that bad.
Bob Marencin - 29 Nov 2003 18:53 GMT
first thing to do is go into the attic and look for light
also look for the path of the water.

this is black asfault paper they used not the  red construction paper ???
it should be anyway.

did they run a strip of it up the valley of places where 2 roof angles meet?

do you have a ridge vent that is cut on the very top of your roof peak?
if they didnt shingle the ridge vent yet I would bet thats your problem.

look for light  look for water path

bob marencin
www.yourepair.com

> "LBaker"  wrote in message
Were building a new house had a large amount of water get through.

> I would be willing to bet they didn't dry it in correctly. Is this at a
> juncture?  Where a lower roof meets a wall, or anyplace where the roof would
> need step flashing & counter flashing.
>
> It's highly unlikely any felt could be that bad.
P. Prior - 29 Nov 2003 20:23 GMT
>"LBaker"  wrote in message
>> Were building a new house here and it's under roof and felt now. With
[quoted text clipped - 10 lines]
>
>It's highly unlikely any felt could be that bad.

Agree.  I can tell you that with a proper felt job basically no rain
should get in.  Our house was very dry except a few drips when heavy
rain came on our felt.

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LBaker - 30 Nov 2003 01:05 GMT
None of the flashing is done yet. I've attached a few more pictures. I can
see where we would be getting some water in at areas where the lower roof
meets walls as in 1 of these pictures.(These areas are under soffit) But
water was coming in, in the middle of the roof. We will be getting roof
vents, but the felt is covering that area for now. The felt used was 15#
atlas asphalt saturated organic felt.

http://users.adelphia.net/~lbaker12/images/roof5.jpg
http://users.adelphia.net/~lbaker12/images/roof6.jpg
Bobby - 30 Nov 2003 02:46 GMT
"LBaker" < wrote in message
> None of the flashing is done yet. I've attached a few more pictures. I can
> see where we would be getting some water in at areas where the lower roof
[quoted text clipped - 5 lines]
> http://users.adelphia.net/~lbaker12/images/roof5.jpg
> http://users.adelphia.net/~lbaker12/images/roof6.jpg

They will work the flashing when they work the shingles.  I'm surprised they
didn't secure the junctures better, it's common practice to run felt up the
wall.  Several different methods are used to secure so no elements enter,
but I've never seen it cut flush like they did.  Blowing elements against
wall, or if a valley above the juncture as pictured would surely enter the
unprotected area.

If leaking in the center of the roof, someone could've tore a hole or
stepped in the valley?
Jim - 30 Nov 2003 22:42 GMT
It could be coming in through the valley area - from the pics shown,I would
suggest an incorrect layers detail.
i.e., the main roofing felt should have been laid across the underlayer of
the valley.
Also, unsure from the pics how much overlap you have on the felt.

Jim (UK)
> None of the flashing is done yet. I've attached a few more pictures. I can
> see where we would be getting some water in at areas where the lower roof
[quoted text clipped - 5 lines]
> http://users.adelphia.net/~lbaker12/images/roof5.jpg
> http://users.adelphia.net/~lbaker12/images/roof6.jpg
Tom Baker - 29 Nov 2003 16:13 GMT
> Were building a new house here and it's under roof and felt now. With recent
> rain we've had a large amount of water get through. They did layer the felt
> properly. I think we my have gotten a bad batch of felt. Here's some pics.
> http://users.adelphia.net/~lbaker12/images/roof1.jpg
> http://users.adelphia.net/~lbaker12/images/roof2.jpg

The photos show how much water collected on the floor.
Unfortunately, there is no information on the roof or the felt.
I don't think felt by itself is expected to keep rain out.
First, talk to your builder and see what can be done about drying things out.
Then look at the possible sources of water.

TB
Js Walker Lazenby Jr - 30 Nov 2003 21:39 GMT
> > Were building a new house here and it's under roof and felt now. With recent
> > rain we've had a large amount of water get through. They did layer the felt
[quoted text clipped - 9 lines]
>
> TB

Properly installed, a single layer of 15-lb felt should shed
water in a normal rainfall.  However, it is not a permanent
roofing by any stretch.  How long was that felt in place
before the rain?  If more than a few days, damage can occur.
If more than a few weeks, that's just too long to expect
continued performance.

Regardless, it should NOT leak.  If the felt had been down
too long, the contractor should have repaired or covered it.
If not, it was not properly and/or completely placed
originally.

The good news is, you can either correct it or make sure the
building flashings, ice shields, etc., are properly placed
and complete before the actual roofing shingles are placed
(also properly).  Also, check the roof sheathing for
unevenness at the joints, unlaminations or curling at the
edges, etc., or other signs of structural diminishment of
the sheathing.  Some renailing may be required, but even
then a properly nailed sheathing job should be OK even after
all that leaking.  With a sound base, there is unlikely any
damage, and the wet will dry.

(The general contractor or framing contractor usually lays
the felt.  The roofing contractor usually does any cleanup
and minor repairs prior to final roofing.  If it is major,
expect the roofing contractor to charge you extra.  You can
backcharge a like amount to the general.  I wouldn't send
the framing folks back up for any other than very minor
repairs or replacements.)

Jim
 
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