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

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-03-2007, 08:04 AM   #1
Newbie
 
Join Date: Sep 2007
Posts: 8
Share |
Default

Concrete Flat Roof - Ponding


My garage has a concrete flat roof that was used by the previous owner as a roof deck (has a railing all the way around it). When it rains a significant amount of water ponds on the roof, up to 2 inches in the middle. Is there a type of light weight filler I can use to level it out? Is there any hope to fix it without replacing the roof?

dsbutler71 is offline   Reply With Quote
Old 09-03-2007, 10:04 AM   #2
Commercial Roofing
 
AaronB's Avatar
 
Join Date: Jan 2005
Location: Illinois
Posts: 927
Default

Concrete Flat Roof - Ponding


I would consider Spray Polyurethane Foam (SPF) for this application. It will last indefinitely if properly maintained.

__________________
www.roseroofing.net/ Free inspection within 12 miles
Seamless Polyurea Roofing Membranes for Metal Roofing, Roof Leak Repair, Seamless Commercial Spray Foam Insulation, Seamless Commercial Roofing, SPF Roofing, Industrial Insulation, Our trucks are red but our roofing is GREEN!
AaronB is offline   Reply With Quote
Old 09-04-2007, 10:58 PM   #3
Member
 
the roofing god's Avatar
 
Join Date: Aug 2007
Location: Pomona,New York,10970
Posts: 877
Send a message via MSN to the roofing god
Default

Concrete Flat Roof - Ponding


or install a drain at the center if the layout underneath allows??--aaron right about the SPF for this though
the roofing god is offline   Reply With Quote
Old 09-07-2007, 10:01 PM   #4
Newbie
 
Join Date: Sep 2007
Posts: 8
Default

Concrete Flat Roof - Ponding


I think the roof would allow for a drain if the hole is around 3-4" in diameter. I assume that would be a lot cheaper than SPF. Is this something I can do myself? Could I use a hammer drill? Can I get a drain at Home Depot or Lowe's? The pipe from the drain is something I can handle, but I'm a little nervous about putting a hole in my roof.

Any idea how much it would cost if I had a professional install the drain? (assuming 20' of pipe and another whole through the brick wall).
dsbutler71 is offline   Reply With Quote
Old 09-07-2007, 11:01 PM   #5
Member
 
the roofing god's Avatar
 
Join Date: Aug 2007
Location: Pomona,New York,10970
Posts: 877
Send a message via MSN to the roofing god
Default

Concrete Flat Roof - Ponding


YOU WOULD BE BETTER W/ A hITACHI sds DRLL and bit to drill the perimeter,then air chisel it through,the drain you would get from a roofing supplier like abc,allied,or bradco,etc-the abs pipe and elbows you could get at the home centers if you want
the roofing god is offline   Reply With Quote
Old 02-04-2008, 06:29 PM   #6
Newbie
 
Join Date: Feb 2008
Posts: 1
Default

Concrete Flat Roof - Ponding


My garage also has an open deck outside the sun-screened room built above and everytime it rains (unpredictable in Houston Texas) I have to vac pump about 20-30gallons. The low area is right outside the sunroom where you'd step out. There is a drain somewhere underneath between the deck and the garage ceiling, the previous roofer covered it and sealed with gravel-covered rubber-looking sheath.
The same issue with the roof on which the AC units are affixed, standing water in the surrounding area. The same material (tar or rubber gravel), I think. Can you recommend what is the best way to avoid vac pumping every single time and to prevent roof leak?
Your advise is apreciated.

Lyna

Last edited by lynasm; 02-04-2008 at 07:10 PM.
lynasm is offline   Reply With Quote
Old 02-04-2008, 07:45 PM   #7
Member
 
the roofing god's Avatar
 
Join Date: Aug 2007
Location: Pomona,New York,10970
Posts: 877
Send a message via MSN to the roofing god
Default

Concrete Flat Roof - Ponding


I could only suggest you repitch the cement floor so the water goes to the drain area-cement is not my area of expertise

__________________
"If it`s worth doing,It`s worth doing right!!"

www.ADVANCEDROOFINGNEWYORK.com
the roofing god is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
ponding on flat roof workman Roofing/Siding 12 10-21-2011 05:54 PM
Flat roof - Rolled? - leaks Advice? JJ2001 Roofing/Siding 4 11-19-2006 06:17 AM
Flat Roof Replacement Quote Questions rocketmahn Roofing/Siding 1 01-02-2006 06:01 PM
Need Help on the Flat Roof and more... MelindaA Roofing/Siding 12 12-21-2005 10:12 PM
Where flat roof meets shingled roof bstyer Roofing/Siding 1 07-07-2005 08:34 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.