The Inspector's Journal Forums
Username:
Password:
Save Password


Join TIJ Forums
Lost Password?
Subscribe to TIJ's Newsletter

All Forums > Technical Forums > Roof Forum >

Wrinkles in rolled roofing

Previous Topic: Blackened attic board... - Topic - Next Topic: roof warranty New TopicReply to TopicShare Topic
Posted By  
South Ogden, Utah
Posts: 3
Joined: Sep, 2006
Currently offline offline
  
Thread Start First Page
[#1] Posted: 09/07/2006 - 06:42:49 AM
Reply with Quote
I did an inspection on a house that has rolled roofing and roof covering is wrinkled. The seller said that he talked to the contractor that installed the roofing and he said that is normal. I don't think so but would like some of your expert opinions. The wrinkles have about a half inch bubble.

View Profile
Rochester, New York
Posts: 4399
Joined: Dec, 2003
Currently offline offline
  
Wrinkles in rolled roofing
[#2] Posted: 09/07/2006 - 06:46:25 AM
Reply with Quote
Don,

Are you talking about 90 lb mineral faced roofing?

The wrinkles aren't good, but more importantly the roofing isn't either.

Chad Fabry
StructureSmart Home Inspection Rochester, NY
www.structuresmart.com
View Profile
Gaston, Oregon
Posts: 8962
Joined: Dec, 2003
Currently offline offline
  
Wrinkles in rolled roofing
[#3] Posted: 09/07/2006 - 07:06:53 AM
Reply with Quote
Quote:Originally posted by Buzzbee

I did an inspection on a house that has rolled roofing and roof covering is wrinkled. The seller said that he talked to the contractor that installed the roofing and he said that is normal. I don't think so but would like some of your expert opinions. The wrinkles have about a half inch bubble.


If you're talking about regular old mineral-surfaced composition roll roofing, the wrinkles are normal. But no one should be using this as a primary cover over a house. This is the stuff that you use over a wood shed -- one where you don't care whether or not the wood stays dry. It's simply not an appropriate material to use over a dwelling.

- Jim Katen, Oregon

Jim Katen, Oregon
www.amipdx.com
View Profile
Chicago, IL
Posts: 10762
Joined: Dec, 2003
Currently offline offline
  
Wrinkles in rolled roofing
[#4] Posted: 09/07/2006 - 10:02:42 AM
Reply with Quote
I don't think any mfg. approves this stuff for primary roofing. Isn't the mfg. intended use as an underlayment @ eaves, valley liner, & suchlike?
Kurt in Chicago

"If I smell it, it goes in the report".............Phillip Smith...2012


View Profile
Gaston, Oregon
Posts: 8962
Joined: Dec, 2003
Currently offline offline
  
Wrinkles in rolled roofing
[#5] Posted: 09/07/2006 - 10:13:08 AM
Reply with Quote
Quote:Originally posted by kurt

I don't think any mfg. approves this stuff for primary roofing. Isn't the mfg. intended use as an underlayment @ eaves, valley liner, & suchlike?


No, they include instructions for installing it as the primary roof cover. It's even included in the NRCA manual.

It's just a crappy product, that's all. Bottom of the barrel stuff. Most people wouldn't put it on a dog house.

- Jim Katen, Oregon

Jim Katen, Oregon
www.amipdx.com
View Profile
Kenmore, WA
Posts: 15735
Joined: Dec, 2003
Currently offline offline
  
Wrinkles in rolled roofing
[#6] Posted: 09/07/2006 - 10:17:37 AM
Reply with Quote
Hi,

If it is mineral-surfaced asphalt roofing, I agree. It gets installed on garages and little add-on porch roofs around here and they're lucky if they can get 10 years out of it.

However, it's possible that it's a granule-coated modbit roof. Buzzbee, did you see any fasteners or gooped-up fasteners at overlaps, or were the seams all bonded together with mastic without any visible fasteners?

ONE TEAM - ONE FIGHT!!!

Mike

South Ogden, Utah
Posts: 3
Joined: Sep, 2006
Currently offline offline
  
Wrinkles in rolled roofing
[#7] Posted: 09/07/2006 - 10:21:22 AM
Reply with Quote
Quote:Originally posted by Jim Katen

Quote:Originally posted by Buzzbee

I did an inspection on a house that has rolled roofing and roof covering is wrinkled. The seller said that he talked to the contractor that installed the roofing and he said that is normal. I don't think so but would like some of your expert opinions. The wrinkles have about a half inch bubble.


If you're talking about regular old mineral-surfaced composition roll roofing, the wrinkles are normal. But no one should be using this as a primary cover over a house. This is the stuff that you use over a wood shed -- one where you don't care whether or not the wood stays dry. It's simply not an appropriate material to use over a dwelling.

- Jim Katen, Oregon


I should have clarified that this is over the patio. Yes it is 90 pound composition rolled roofing. I am recommending that they monitor and replace the covering when (not if) they see cracks or loose seams.

South Ogden, Utah
Posts: 3
Joined: Sep, 2006
Currently offline offline
  
Wrinkles in rolled roofing
[#8] Posted: 09/07/2006 - 10:26:35 AM
Reply with Quote
Quote:Originally posted by hausdok

Hi,

If it is mineral-surfaced asphalt roofing, I agree. It gets installed on garages and little add-on porch roofs around here and they're lucky if they can get 10 years out of it.

However, it's possible that it's a granule-coated modbit roof. Buzzbee, did you see any fasteners or gooped-up fasteners at overlaps, or were the seams all bonded together with mastic without any visible fasteners?

ONE TEAM - ONE FIGHT!!!

Mike


No fasteners at overlaps, just bonded seams. I do see this occasionally on homes but mostly on sheds or garages with low pitched roofs.

Buzz

   
Previous Topic: Blackened attic board... - Topic - Next Topic: roof warranty New TopicReply to TopicShare Topic
Jump To:
The Inspector's Journal Forums © 2002-2013 all topics or replies that are posted on The Inspector's Journal
are copyrighted material of the original author that posted the topic or reply.
Go To Top Of Page 
 
Pick an RSS Feed

The views expressed on this website are the views of the authors and
do not necessarily reflect the views or policies of the sponsors.
© 2002-2013 Copyright DevWave Software Inc.
Find a Home Inspector

Powered By: Snitz Forums 2000