DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Roofing and Siding > Is White Granulated Modified Bitumen rubber?

Thread Tools Search this Thread Display Modes
Old 02-23-2011, 06:07 PM  
Junior Member
Join Date: Feb 2011
Location: Washington, DC
Posts: 1
Default Is White Granulated Modified Bitumen rubber?

Dealing with a roofing issue on my condo building. Have had over 8 leaks in a year on a new building and feel the developer is giving the owners the runaround. In my condo docs, it says the roof "is composed of a membrane roof system on wood deck. The membrane is a rubber membrane seamed with heat application".

The work order for the roof says "Install white granulated modified bitumen roof system".

My question is: does white granulated modified bitumen meet the standard outlined in the condo docs?

politicalpro is offline  
Reply With Quote
Old 02-24-2011, 06:44 AM  
Senior Member
Join Date: Jan 2011
Location: Hartfield VA, VA
Posts: 1,468
Liked 73 Times on 60 Posts
Likes Given: 2


No one here can see it or feel it.
The trouble with a flat roof it will always leak sooner or later.
I would have suggested at least using a rubber membraine roofing material instead, far less chance for leaks and would last for about 30 years or more.
With 8 leaks on a new roof the guy does not know what he's doing and needs to go.

joecaption is offline  
Reply With Quote
Old 02-24-2011, 12:59 PM  
oldognewtrick's Avatar
Join Date: Jul 2009
Location: Nashville, TN
Posts: 6,793
Liked 653 Times on 536 Posts
Likes Given: 205


A white granulated modified bitumen is not a rubber roof system. Also, rubber or E.P.D.M. is not a heat application. Heat applications will be TPO's or PVC's single ply's that are heat welded. They could have spec'd a torch down modified bitumen, which could be white, granules. In any case the failure is not the membranes but the installers ability to seam the sheets or flash the penetrations properly.
oldognewtrick is online now  
Reply With Quote
Old 03-02-2011, 02:52 PM  
Senior Member
handyguys's Avatar
Join Date: Feb 2008
Location: USA
Posts: 815
Liked 2 Times on 2 Posts

Send a message via Skype™ to handyguys

Originally Posted by oldog/newtrick View Post
In any case the failure is not the membranes but the installers ability to seam the sheets or flash the penetrations properly.

I have done a modified Bitumen torch down with white granules and as oldog said its not a 'rubber' roof. No edpm or rubber roof that I know of would have white granules.

Regardless - either, and other products, could be used with success on a flat roof when installed correctly. The problem is not with the product used but in the capabilities of the installer.
The Handyguys Podcast [url][/url]
handyguys is offline  
Reply With Quote

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

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Flat Rubber Roof with Leaky Interior Drain dpkline Roofing and Siding 0 08-18-2010 11:53 AM
Rubber non-slip sidewalk boobou69 Bricks, Masonry and Concrete 14 04-10-2010 04:17 AM
Built Up Roof (BUR) vs Modified Bitumen Roof (Torch Down) RacerX Roofing and Siding 4 01-16-2010 08:32 PM
Adhesive for rubber roofing,safe for styrofoam? Tomh Roofing and Siding 0 01-23-2009 07:07 PM
Odd flooring idea - rubber? WestBentley Flooring 3 01-17-2007 12:45 PM

Newest Threads