If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by sw on August 24, 2009, 1:42 pm
Our friends cottage has developed a leak in the shingle roof of the
screened porch part of their cottage. The leak isn't heavy, and is
less likely to occur during a rainstorm but rather at off rain times.
e.g. seems to happen each morning. The roof construction is un-
insulated/exposed in this portion of the house. I look up and saw a
16" wide x 6" patch of damp plywood sheathing centered on one of the
rafters.
The shingles are old but not curling. This is the only leak and it's
not a heavy one. One thing I noticed is that they get a heavy dew
build-up in the night time. I wasn't sure if that might be more
consistent with the leak.
I didn't get on the roof to check it but might be going back in
September when I will try to check it.
Any suggestions?
Thankyou in advance.
|
|
Posted by Cwatters on August 28, 2009, 10:37 am
> Our friends cottage has developed a leak in the shingle roof of the
> screened porch part of their cottage. The leak isn't heavy, and is
> less likely to occur during a rainstorm but rather at off rain times.
> e.g. seems to happen each morning. The roof construction is un-
> insulated/exposed in this portion of the house. I look up and saw a
> 16" wide x 6" patch of damp plywood sheathing centered on one of the
> rafters.
> The shingles are old but not curling. This is the only leak and it's
> not a heavy one. One thing I noticed is that they get a heavy dew
> build-up in the night time. I wasn't sure if that might be more
> consistent with the leak.
> I didn't get on the roof to check it but might be going back in
> September when I will try to check it.
> Any suggestions?
> Thankyou in advance.
This sounds like it might be condensation rather than a leak. Is the roof
space ventilated properly?
|
|
Posted by Tom Baker on August 30, 2009, 6:59 am
> Our friends cottage has developed a leak in the shingle roof of the
> screened porch part of their cottage. The leak isn't heavy, and is
> less likely to occur during a rainstorm but rather at off rain times.
> e.g. seems to happen each morning. The roof construction is un-
> insulated/exposed in this portion of the house. I look up and saw a
> 16" wide x 6" patch of damp plywood sheathing centered on one of the
> rafters.
> The shingles are old but not curling. This is the only leak and it's
> not a heavy one. One thing I noticed is that they get a heavy dew
> build-up in the night time. I wasn't sure if that might be more
> consistent with the leak.
> I didn't get on the roof to check it but might be going back in
> September when I will try to check it.
> Any suggestions?
> Thankyou in advance.
Point of entry for the water may well be far from the area where it
becomes visible.
Is there a change in roof slope or a roof penetration above this
point?
Is there mechanical equipment or duct work in the attic?
Your idea of dew as the origin is worth checking carefully.
T
|
|
Posted by AndyS on August 31, 2009, 6:31 am
> Our friends cottage has developed a leak in the shingle roof of the
> screened porch part of their cottage. The leak isn't heavy, and is
> less likely to occur during a rainstorm but rather at off rain times.
> e.g. seems to happen each morning. The roof construction is un-
> insulated/exposed in this portion of the house. I look up and saw a
> 16" wide x 6" patch of damp plywood sheathing centered on one of the
> rafters.
> The shingles are old but not curling. This is the only leak and it's
> not a heavy one. One thing I noticed is that they get a heavy dew
> build-up in the night time. I wasn't sure if that might be more
> consistent with the leak.
> I didn't get on the roof to check it but might be going back in
> September when I will try to check it.
> Any suggestions?
> Thankyou in advance.
Andy comments:
You need to locate the leak point.
If you have running water, and a hose, use that...
Start at the lowest possible place on the roof you can, which will be
approx where
the wet wood is, and just run the hose at that point to see if you get
ingress.
Then work your way upware and sideways. Leave the hose at least a
half hour
at each place.. Sooner or later the spot will get wet again, and you
have a better
idea of where to make the repair.
Usually, stuff like this is one or two shingles. If the wood isn't
rotten, it won't
need to be replaced....
Good luck,
Andy in Eureka, Texas
|
| Similar Threads | Posted | | Cottage supports are shifting and heaving | August 23, 2006, 10:04 pm |
| FA Cottage Building manual in Cob Chalk Clay 1919 | April 30, 2007, 6:51 pm |
| Roofing | February 17, 2007, 5:25 pm |
| re-roofing job | November 19, 2008, 2:45 pm |
| Re: roofing types | July 15, 2006, 4:20 pm |
| stucco before roofing? | September 16, 2006, 12:47 am |
| going rate for roofing? | September 26, 2006, 2:36 pm |
| spray on roofing | April 8, 2007, 11:24 am |
| Question about roofing | July 23, 2007, 11:23 pm |
| roofing costs | November 5, 2007, 10:39 am |
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap
> screened porch part of their cottage. The leak isn't heavy, and is
> less likely to occur during a rainstorm but rather at off rain times.
> e.g. seems to happen each morning. The roof construction is un-
> insulated/exposed in this portion of the house. I look up and saw a
> 16" wide x 6" patch of damp plywood sheathing centered on one of the
> rafters.
> The shingles are old but not curling. This is the only leak and it's
> not a heavy one. One thing I noticed is that they get a heavy dew
> build-up in the night time. I wasn't sure if that might be more
> consistent with the leak.
> I didn't get on the roof to check it but might be going back in
> September when I will try to check it.
> Any suggestions?
> Thankyou in advance.