Flat Roof Under Deck

 
Thread Tools Search this Thread Display Modes
Old 12-10-2015, 06:33 PM   #1
Registered User
 
kressman's Avatar
 
Trade: Renovation
Join Date: Oct 2015
Location: Ottawa,On, Canada
Posts: 14
Rewards Points: 36

Flat Roof Under Deck


I have some repair work to do at my parent's house. Let's just say it was not well built.

There was multiple leaks/floods in a finished room in the basement. It is a walk out basement with a block foundation. The area in question is a PWF one story addition, with a flat roof and a deck on top.

I ripped out the drywall and the insulation. When I pulled the ceiling I found a lot of water just sitting in the VB. Short story is 4 joists and 2 sheets of plywood are badly rotted. I've yet to actually start taking any of it apart so I'm not sure how he did it, but I have no doubt it's terribly wrong. The deck is PT, he laid 2x4 sleepers on the roof and used 2x6 for deck boards. The leak appeared to have started where a post was installed for the railing. I don't see any damage from below in any other areas.

I'm hoping just to repair this area for now, I will be ripping out the deck in spring. What kind of product should I be using to seal the roof? Is it even a good idea to replace the existing deck? I can't say I've ever seen anything that looks like it before, but what do I know. If I were to redo it completely, what would be the correct way?
kressman is offline  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 12-10-2015, 06:38 PM   #2
Geometrist

 
Warren's Avatar
 
Trade: framing/remodeling
Join Date: Feb 2005
Location: NE Ohio
Posts: 9,506
Rewards Points: 965

Re: Flat Roof Under Deck


EPDM roofing, sleepers, and decking. Properly flashed at all post penetrations.

Advertisement

__________________
I'd love to replace all the dumbness in this room but the budget is tight and the stupidity is plentiful!

Easy Gibson
Warren is online now  
Old 12-10-2015, 09:22 PM   #3
Pro
 
pizalm's Avatar
 
Trade: Carpenter
Join Date: Mar 2009
Location: Manitoba
Posts: 437
Rewards Points: 704

Re: Flat Roof Under Deck


We normally use torch down, sleepers, then decking and avoid any penetration through the roof.


Sent from my iPad using Tapatalk
pizalm is offline  
Old 12-11-2015, 07:10 AM   #4
Pro
 
1985gt's Avatar
 
Trade: Roofing
Join Date: Dec 2010
Location: Nebraska
Posts: 1,300
Rewards Points: 346

Re: Flat Roof Under Deck


All the ones we do we install EPDM, no penetrations then a floating deck on the top, railings are attached to the deck. Here is one we did awhile back where the post penetrated the roofing. Lots of damage from the posts not being sealed correctly.
Attached Thumbnails
Flat Roof under deck-bad-posts.jpg  
1985gt is offline  


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Paint or stain on hardi plank? Jer Painting & Finish Work 28 02-17-2017 07:29 PM
Flat roof - What roofing system should I use? acro Roofing 10 04-15-2013 04:47 PM
Hidfast Gun redwood Decks & Fencing 28 06-08-2012 06:43 PM
Flat Roof Deck Question GordC Decks & Fencing 13 06-07-2009 07:20 PM
Flat roof over garage leaking under exterior walk out door IHI Roofing 18 05-30-2006 09:28 PM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?