DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Roofing and Siding > changing pitch on roof




Reply
 
Thread Tools Search this Thread Display Modes
Old 05-16-2009, 07:42 AM  
hunter
Junior Member
Join Date: May 2009
Posts: 1
Default changing pitch on roof

im considering changing my roof pitch, i have a roof pitch of 3/12 i wanna rasie it because when ever it rains heavy it backs up on the shingles and leaks, the roof shingles are arch- shingles , they are about 7 years old but they where not overlapped correctly if im going to bother with re roofing it im thinking of raising the pitch, also i would like the look of a little bigger pitch, any suggestions on how to do this



Last edited by hunter; 05-16-2009 at 08:03 AM.
hunter is offline  
 
Reply With Quote
Old 05-24-2009, 09:52 PM  
GBR
Senior Member
Join Date: Mar 2009
Posts: 356
Liked 26 Times on 25 Posts
Likes Given: 9

Default

Draw up the rafters, materials, cut views, elevation views, and top, blueprint, view. Have a Structural Engineer review it, put his stamp on it, and submit it to your local Building Department for their safety inspection. Order the material, go to it. Enjoy. Be safe, G


GBR is offline  
 
Reply With Quote
Old 07-25-2009, 06:37 PM  
WallyPop
Junior Member
Join Date: Jul 2009
Location: , NYS
Posts: 19
Default

Seems to me you'll be spending big bucks, capriciously. As u think about it, this would make sense if u decided to raise the pitch high enough to to have a walk-in attic,etc.

The other over-riding criterion, you must just have the look you desire. Can't rationalize that.

If stopping leaks is the only real objective, tear off the old shingles (wait until you check on the disposal fees) and install new shingles. I'm presently doing a dual pitch, 2:12 and 4:12. The latter is applicable for standard shingles, I'm using GAF's asphalt TimberLine; the 2:12 slope uses the same shingles but GAF issues special install instructions to prevent rain backup, etc. You can do it or get a pro.

If the sheathing is in bad shape then remove all the sheathing and at that time consider sistering longer rafters to your present ones and get the increased slope you desire. Then shingle.

Just my opinion since I've been agonizing over a similar project for 9 months. You, at least shouldn't have to add any bearing wall reinforcement, like I did. (P.E costs.)

Good luck.
WallyPop is offline  
 
Reply With Quote
Old 07-26-2009, 08:13 AM  
oldognewtrick
Lost And Found Dept
HRT_ADMIN.png
 
oldognewtrick's Avatar
Join Date: Jul 2009
Location: Nashville, TN
Posts: 7,477
Liked 758 Times on 621 Posts
Likes Given: 236

Default

Hunter, changing the roof pitch properly will be a big cost factor. I would suggest tearing off the shingles, installing a underlayment such as Weather Watch on the entire roof slope and then installing a good 25 year 3-tab shingle. A 3-tab will seal tighter than a dimensional shingle plus you loose the visual view of the shingle on a low slope roof and tend to see the bottom of the shinle and not the laminate and shadow line.

There are products available that are slope specific that will prevent water intrusion if properly installed. If you have any questions stop by you local roofing supply house and talk to a salees rep about your situation, they should be more than happy to help you choose the right materials to fit your needs.
oldognewtrick is offline  
 
Reply With Quote
Old 12-22-2009, 06:11 AM  
earlgrey
Junior Member
Join Date: Dec 2009
Posts: 3
Default

Here in PA we are required to use snow and ice shield (a rubber self adhesive membrane) under the shingles just around the perimeter and in valleys, but when I have a low pitch I ice shield the entire roof and I've never had a call back!
earlgrey is offline  
 
Reply With Quote
Old 12-22-2009, 03:09 PM  
oldognewtrick
Lost And Found Dept
HRT_ADMIN.png
 
oldognewtrick's Avatar
Join Date: Jul 2009
Location: Nashville, TN
Posts: 7,477
Liked 758 Times on 621 Posts
Likes Given: 236

Default

As Earl stated shingles may be applied to a roof slope of 2/12-4/12 if a weather watch type underlaymrnt is installed on the low slope roof deck. A pitch less than 2/12 pitch must have a covering other than shingles.


oldognewtrick 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


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Raising Roof Pitch JulieC Roofing and Siding 14 03-04-2012 06:22 PM
Roof pitch and type Ag Eddy HouseRepairTalk Website Help 1 02-09-2009 10:23 AM
Changing digital thermostat tractng Electrical and Wiring 3 08-11-2008 04:36 PM
altering pitch on garage roof billyb Roofing and Siding 2 06-08-2008 03:43 PM

Newest Threads

LATEST SPONSOR DEALS