CDX Plywood Sheeting Getting Wet - Roofing/Siding - DIY Home Improvement | DIYChatroom


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 12-01-2013, 01:09 PM   #1
Newbie
 
Join Date: Dec 2013
Location: FL
Posts: 3
Rewards Points: 10
Default

CDX Plywood Sheeting getting wet


I am having a house built and the roof trusses and sheeting were just done last week. Since last week was Thanksgiving, the inspection was not able to be done until this coming week. Of course it's been raining this weekend and my newly sheeted roof is getting wet. It's 5/8" CDX. I can tell some of the pieces are bowed bit at the edges now. Only one piece near the front corner looks bad (starting to delaminate) and the rest looks okay at the moment.

I was going to cover the roof with plastic sheeting but once it started raining I wasn't about to slip and fall off the roof. It hasn't stopped long enough for me to do anything.

So, will I be okay in the long run or should I have them replace any damaged pieces? I assume it should dry out before the 30# felt gets tacked down?

Thanks.

Advertisement

CMB_350 is offline   Reply With Quote
Old 12-01-2013, 07:11 PM   #2
747
registered
 
747's Avatar
 
Join Date: Feb 2005
Location: Illinois (kankakee county)
Posts: 1,344
Rewards Points: 524
Default

CDX Plywood Sheeting getting wet


if you have it covered with synthetic underlayment it can be left exposed for around 4 months without any issues. The plywood will dry. Now osb would be a different story.

Advertisement

747 is offline   Reply With Quote
Old 12-01-2013, 07:14 PM   #3
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 27,760
Rewards Points: 636
Default

CDX Plywood Sheeting getting wet


Sure sounds like he has bare plywood on the roof.
Poor planning on someone's part, should have been papered over the same day.
__________________
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
joecaption is offline   Reply With Quote
Old 12-01-2013, 09:35 PM   #4
Newbie
 
Join Date: Dec 2013
Location: FL
Posts: 3
Rewards Points: 10
Default

CDX Plywood Sheeting getting wet


Quote:
Originally Posted by joecaption View Post
Sure sounds like he has bare plywood on the roof.
Poor planning on someone's part, should have been papered over the same day.
We have to pass sheathing inspection before it can be papered. I would have papered it myself if I didn't need the inspection. Not a single person I have talked to can believe how much rain we've gotten over the past 3 days. It's just bad luck on my part. I just came from a holiday party and my buddy in the building industry said he would've left it bare too. No one predicted this much rain. He says it should be fine.

Since the original post, I was able to sheet a majority of the roof with 4 mil plastic. There's still a section exposed. It started raining again and I wasn't about to slip and fall off the roof. Honestly, it didn't seem that bad when I was up on the roof. A few boards had some bowing on the edges. The one board on the front edge is bad, but it's really the only one that I consider "needing replacement" at this time.
CMB_350 is offline   Reply With Quote
Old 12-01-2013, 09:44 PM   #5
Registered User
 
Join Date: Mar 2009
Posts: 9,989
Rewards Points: 2,044
Default

CDX Plywood Sheeting getting wet


You should be fine, we get rain quite often here, real plywood will dry- OSB will not. I doubt it will delaminate in a week or so. You may find some buckling if the framers installed it without the required 1/8" gap between sheet ends/edges. The poly will keep the ply from drying and force it into the inner plys, remove it before the sun comes out and cooks it like a sauna...you did more harm than good-
similar to this; http://www.buildingscience.com/docum...e10c0bc7fa2493

Delaminating and buckling- similar to this; http://www.buildabetterhome.org/level_d.cfm?story=2796

http://bct.eco.umass.edu/publication...d-and-plywood/

Gary
__________________
If any ads are present in my answer above, I do not condone/support/use the product or services listed, they are there against my permission.

Last edited by Gary in WA; 12-01-2013 at 10:04 PM.
Gary in WA is online now   Reply With Quote
The Following User Says Thank You to Gary in WA For This Useful Post:
CMB_350 (12-01-2013)
Old 12-01-2013, 09:50 PM   #6
Newbie
 
Join Date: Dec 2013
Location: FL
Posts: 3
Rewards Points: 10
Default

CDX Plywood Sheeting getting wet


Quote:
Originally Posted by Gary in WA View Post
You should be fine, we get rain quite often here, real plywood will dry- OSB will not. I doubt it will delaminate in a week or so. The poly will keep the ply from drying and force it into the inner plys, remove it before the sun comes out and cooks it like a sauna...

Gary
Yea, like I said there really is only one piece that looks bad. Might have already been wavy on the end when laid down. It looks worse from the ground than being up on the roof.

I'll get the plastic off once I know the rain will stop. It's still raining, btw...

Once the inspection is done I'll make sure it's dry and get paper on the roof. Should be later this week unless it rains all week.

Advertisement

CMB_350 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fixing a screwup - stain on oak plywood brich Carpentry 9 05-14-2010 12:09 AM
It is hard to find 1/2 t and G plywood so would regular plywood be ok ? dewi Flooring 14 05-04-2010 01:05 PM
Tile over plywood? Thurman Flooring 3 07-12-2009 10:05 AM
Removing tile from plywood underlayment Martinglmt Flooring 3 12-13-2008 08:06 PM
Hardwood Subfloor: OSB vs. Plywood vs. OSB + Plywood italoblu Flooring 2 07-31-2008 01:11 PM




Top of Page | View New Posts