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 02-26-2012, 07:13 PM   #1
Newbie
 
Join Date: Feb 2012
Posts: 1
Share |
Default

Re shingle or over shingle ?


Can you overshingle a roof without major problems ?

MIKEY 43 is offline   Reply With Quote
Old 02-26-2012, 07:19 PM   #2
Member
 
Join Date: Nov 2011
Location: Hartfield VA
Posts: 26,321
Default

Re shingle or over shingle ?


Can you, or should you?
Yes in most cases it can be done, but there's no way to check for bad sheathing, I hate the the way it looks, never seem to lay as flat as one layer.
I've also found there do not seem to stick down as well.
How bad is the roof you have now, what trpe roofing system do you have. Trusses, stick built. How wide are the rafters.

joecaption is online now   Reply With Quote
Old 02-26-2012, 07:25 PM   #3
long island, NY
 
Join Date: Jul 2009
Location: long island, ny
Posts: 382
Default

Re shingle or over shingle ?


Also I believe it reduces the life span of the new roofing layer... because it's not sitting on an ideal surface.
diy'er on LI is offline   Reply With Quote
Old 02-26-2012, 07:49 PM   #4
Exterior Construction
 
Windows on Wash's Avatar
 
Join Date: Aug 2011
Location: VA, MD, DC
Posts: 6,198
Default

Re shingle or over shingle ?


For the small saving in tear off and dump fees, I do not recommend it.
Windows on Wash is offline   Reply With Quote
Old 02-26-2012, 07:57 PM   #5
Member
 
Join Date: Oct 2011
Location: pa
Posts: 4,323
Default

Re shingle or over shingle ?


can you yes,,should you no...why...that is not how it should be done....as reasons some were already mentioned.....side thougth...tell shingle manufactor your going over existing roof....warranty void...
ben's plumbing is offline   Reply With Quote
Old 02-26-2012, 08:43 PM   #6
RFN-4A-LVN
 
Roofmaster417's Avatar
 
Join Date: Jun 2010
Location: Springfield and Joplin Missouri
Posts: 981
Default

Re shingle or over shingle ?


Oh yes.,Someone is trying to stir the DIY demons with this post.It happens everytime someone speaks of recovers.

It is a topic that is frequent and is answered the same way by the same people who don't share the same views.

Reroofing over old shingles This is one of very many on this site.
Roofmaster417 is offline   Reply With Quote
Old 02-26-2012, 09:03 PM   #7
Member
 
Gymschu's Avatar
 
Join Date: Dec 2010
Location: Eastern Ohio (heart of Appalachia)
Posts: 2,820
Default

Re shingle or over shingle ?


As a DIYer who had to shovel THREE layers of shingles off his roof, I implore you NOT to overlay. You will thank me for this simple plea in 15-25 years. In some regards, shingling over one layer could be seen as good for the environment.........less shingle trash tossed into a landfill......but, like I said, what a pain trying to get 2 or 3 layers off a roof......nasty, nasty work.
Gymschu is offline   Reply With Quote
Old 02-26-2012, 09:04 PM   #8
Doing This Way Too Long
 
Join Date: Jun 2008
Location: North Idaho
Posts: 1,140
Default

Re shingle or over shingle ?


Ben;s Plumbing, Can you please tell us what mfrs void the warranty on a recover?

Can you recover? Yes and it can be perfectly fine if done correctly. Check local building codes for number of layers allowed.

It is always ideal to tear it off for numerous reasons but we don't live in a perfect world.

Last edited by OldNBroken; 02-26-2012 at 09:07 PM.
OldNBroken is online now   Reply With Quote
Old 02-26-2012, 09:06 PM   #9
Member
 
Join Date: Oct 2011
Location: pa
Posts: 4,323
Default

Re shingle or over shingle ?


Quote:
Originally Posted by Gymschu View Post
As a DIYer who had to shovel THREE layers of shingles off his roof, I implore you NOT to overlay. You will thank me for this simple plea in 15-25 years. In some regards, shingling over one layer could be seen as good for the environment.........less shingle trash tossed into a landfill......but, like I said, what a pain trying to get 2 or 3 layers off a roof......nasty, nasty work.
oh and by the way did he say nasty nasty work...........well if he didn't its nasty nasty work
ben's plumbing is offline   Reply With Quote
The Following User Says Thank You to ben's plumbing For This Useful Post:
Gymschu (02-28-2012)
Old 02-26-2012, 09:16 PM   #10
RFN-4A-LVN
 
Roofmaster417's Avatar
 
Join Date: Jun 2010
Location: Springfield and Joplin Missouri
Posts: 981
Default

Re shingle or over shingle ?


.,.,.,.,.,.,.,

Last edited by Roofmaster417; 02-26-2012 at 10:18 PM.
Roofmaster417 is offline   Reply With Quote
Old 02-27-2012, 06:17 AM   #11
Residential Roofer
 
Slyfox's Avatar
 
Join Date: Jun 2008
Location: Struthers, Ohio
Posts: 803
Default

Re shingle or over shingle ?


Manufacturers not only guarantee their materials in a lay-over but they actually give installation instructions on their websites.

If your in the Youngstown, Ohio area I can show you a dozen lay-overs in which the shingles are 20 years old "give or take" and still intact today.

I personally have seen sales reps bid tear-offs as one layer re-roofs and find later that there is two layers of existing shingles, because if there installed properly you cannot see the additional layer unless you inspect the roof hands on.

My personal home was re-roofed "tear-off" in 2010, it had two layers on it at the time, the second layer of owens corning 3-tabs was 21 years old and still not blowing off or leaking, it could have lasted an easy 5 plus years longer but because I was painting my home "changing the color scheme" I chose to re-roof it than anyhow.

That's hands on experience talking from a roofer with over 30 years in the trade.

Show me a lay-over that is lumpy, blowing off, looks bad in other ways or doe's not meet it's expected life span and I'll show you a lay-over installed by some one who didn't know what they were doing..
__________________
God Family Country Work Play
Facebook <> Twitter
Slyfox Exteriors Co.
Slyfox is offline   Reply With Quote
The Following User Says Thank You to Slyfox For This Useful Post:
framer52 (02-27-2012)
Old 02-27-2012, 07:42 AM   #12
Member
 
Join Date: Feb 2012
Location: Utica, NY
Posts: 516
Default

Re shingle or over shingle ?


Quote:
Originally Posted by ben's plumbing View Post
can you yes,,should you no...why...that is not how it should be done....as reasons some were already mentioned.....side thougth...tell shingle manufactor your going over existing roof....warranty void...
Incorrect. shingle manufacturers don't care.
framer52 is offline   Reply With Quote
Old 02-27-2012, 07:44 AM   #13
Member
 
Tom Struble's Avatar
 
Join Date: Dec 2008
Location: west milford n.j.
Posts: 2,785
Default

Re shingle or over shingle ?


but not all shingles can be installed on an overlay,i believe ct presidentials
can't
Tom Struble is offline   Reply With Quote
Old 02-27-2012, 12:20 PM   #14
Stroudsburg Roofer
 
PAHome's Avatar
 
Join Date: Feb 2012
Location: NEPA
Posts: 27
Default

Re shingle or over shingle ?


I would highly recommend removing the existing layer before installing the new roof. You will save money in the short run but it will cost you way more in the long run. The next time you need a roof, which if you are lucky will be in 10 years, it will cost you.

Don't think of your roof as an expense but an investment.

www.pa-homeimprovements.com
"your local roofing experts"
570-484-ROOF
PAHome is offline   Reply With Quote
Old 02-27-2012, 12:23 PM   #15
Member
 
Join Date: Feb 2012
Location: Utica, NY
Posts: 516
Default

Re shingle or over shingle ?


iN MY EXPERIENCE 2ND ROOFS AS LONG OR LONGER THAN FIRST ROOFS.

Of course i am only 57 and installed only around 5000 squares starting in the late 70's.

Now it has been 5 years since I have installed, but the roofs I have laid over over the years have held up well.

framer52 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
Garage ceiling insulation MNHouseRepair Insulation 16 12-05-2011 02:57 PM
AIR VENT SHINGLE VENT ll Docfletcher Roofing/Siding 8 06-04-2011 09:05 AM
hip shingle torn and roof nail exposure timcsi Roofing/Siding 1 09-29-2010 10:09 AM
shingle vent II and hip roofs tie in dondiy Roofing/Siding 2 08-11-2008 12:40 AM
Shingle Installation with F5S Standard Drip Edge ShortEdged Roofing/Siding 32 02-15-2008 02:10 PM




Top of Page | View New Posts

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