DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Roofing and Siding > Step flashing for a leak free roof !





Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 01-18-2006, 09:21 PM  
Square Eye
Senior Member
 
Square Eye's Avatar
 
Join Date: Jan 2006
Posts: 1,273
Liked 4 Times on 4 Posts

Default Step flashing for a leak free roof !

The biggest problem I find when I get called out for a leaking roof is where the roof meets a wall. A dormer or a chimney needs a piece of step flashing for every shingle along the edge. A step flashing needs to be at least an 8" x 8" piece of metal bent at a right angle in the center. Lay it on top of your shingle from the tar line up. Lay a shingle on top of that and repeat. This turns the water back out on top of the lower shingle instead of letting the water pass under the shingles and soak the wood under them. Too many times I have seen a single piece of aluminum run up the edge of a wall and the shingles were wet underneath, and the wood was rotten. Worse, no metal, no flashing, just shingles butted up to the wall and maybe tarred. Tar is not a structual patch. It cracks and peels.

Also remember that step flashing needs a cap. Vinyl siding on a wall or grooves cut horizontally in a brick wall and a cap bent to fit the groove, will cap the top of the flashing. A bent cap can be made of aluminum trim stock. It comes in many colors and in widths from 8" to 24" wide.

Even if you call a pro, ask him about step flashing and specify it on your house.

Tom in KY, stay dry.



__________________
Square Eye is offline  
 
Reply With Quote Quick reply to this message
Old 01-19-2006, 08:26 AM  
inspectorD
Housebroken
HRT_MODERATOR.png
 
inspectorD's Avatar
 
Join Date: Dec 2005
Location: Litchfield, CT
Posts: 3,909
Liked 82 Times on 71 Posts
Likes Given: 160

Default Dont forget

Squareeye is right on the money! To many times I see a new re-roof put over the existing shingles and the flashing is not tied into the new roof and wall connection.By simply removing the shingle near the wall connection say about 3 feet(I know this looks ugly but you can taper it away) you can use or repair the existing flashing and correct the future problem. Also dont forget the bottom of the flashing run needs a kick out flashing so you dont put the water behind the siding.
Always learning,
Brian

__________________
inspectorD is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

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 On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Raising Roof Pitch JulieC Roofing and Siding 14 03-04-2012 05:22 PM
Patio roof to house attachment question mobilemike Roofing and Siding 2 09-23-2008 07:31 AM
Hello, Looking for suggestion, possible roof leak, mold etc R1000 Roofing and Siding 9 09-25-2007 10:52 PM
Suing your Seller CraigFL General Chit-Chat 3 04-03-2006 03:27 PM
Leak From Roof ptranfa Roofing and Siding 1 10-08-2005 09:59 PM