Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 02-06-2009, 08:59 AM   #1
Member
 
Join Date: Nov 2008
Posts: 95
Rewards Points: 75
Default

fix a sagging roof ridge...??


Hi,

I've got a bit of a problem I need to figure out. I've put a new dormer on the back of my house, and now I need to make the old roof on the front of the house meet up with the new ridge. The problem is that the new ridge is nice and straight and level, but the old roof sags about 3 inches in the middle. The old roof is just 2x4 stick frame.

View from front:

fix a sagging roof ridge...??-current-front-view.jpg


Current profile:

fix a sagging roof ridge...??-current-profile.jpg

My plan is to put in a knee wall and run a 2x8 rafter from the exterior wall to the knee wall, and from the knee wall to the new ridge.

Proposed profile:

fix a sagging roof ridge...??-proposed-profile.jpg

Does this look OK? The building inspector doesn't have any requirements for the old section of roof.

thanks in advance!

red86yota is offline   Reply With Quote
Old 02-06-2009, 08:37 PM   #2
Old School
 
Willie T's Avatar
 
Join Date: Jan 2009
Location: St. Petersburg, FL Minds of moderate caliber ordinarily condemn everything which is beyond them.
Posts: 3,634
Rewards Points: 2,000
Default

fix a sagging roof ridge...??


While you're checking out that "sag", take an eyeball down the ridge line, from gable to gable. Chances are, your sag could be coming, at least in part, from the ridge bowing to one side. I know you said it looked straight, but did you put a stringn on it?

Just something to be aware of. It might influence your intended method of repair.

__________________
"True eloquence consists in saying all that is necessary, and only that which is."
François Duc de La Rochefoucauld
Willie T

Last edited by Willie T; 02-06-2009 at 10:40 PM.
Willie T is offline   Reply With Quote
Old 02-06-2009, 08:46 PM   #3
Member
 
Join Date: Jul 2008
Location: Canada (s/w ON.)
Posts: 2,294
Rewards Points: 1,000
Default

fix a sagging roof ridge...??


Quote:
Originally Posted by red86yota View Post
Hi,

I've got a bit of a problem I need to figure out. I've put a new dormer on the back of my house, and now I need to make the old roof on the front of the house meet up with the new ridge. The problem is that the new ridge is nice and straight and level, but the old roof sags about 3 inches in the middle. The old roof is just 2x4 stick frame.

View from front:

Attachment 8049


Current profile:

Attachment 8050

My plan is to put in a knee wall and run a 2x8 rafter from the exterior wall to the knee wall, and from the knee wall to the new ridge.

Proposed profile:

Attachment 8051

Does this look OK? The building inspector doesn't have any requirements for the old section of roof.

thanks in advance!
Usually when the ridge sags, the 1st floor walls are forced outwards by pressure exerted from the rafters. If the wall doesn't move out, the birds mouths open because they were improperly fastened.
To pull this back will be most difficult! Your knee wall is a good idea, to reinforce the rafters.
After placing the knee wall, I'd be inclined to run external stringers, lateraly with shims to level them off, then re-sheet the roof on the stringers.
Wildie 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
low-slope roof and leaky ridge vent downers Roofing/Siding 15 02-21-2008 11:35 PM
sagging roof, rotten ridge board sonoflee Roofing/Siding 6 01-29-2008 06:12 PM
Ventilating Roof with no ridge? NateHanson Roofing/Siding 7 12-30-2007 04:33 AM




Top of Page | View New Posts

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