Shingles And Tourch Down - Roofing/Siding - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding


Thread Tools Display Modes
Old 11-04-2012, 08:03 AM   #1
Join Date: Mar 2010
Posts: 2,318
Rewards Points: 1,164

Shingles and tourch down

I have a ranch house with a 4/12 pitch. On the back is a porch addition that goes up partially on the existing house roof and has about a 2/12 pitch and is about 30 feet long.
I just had a new roof installed with GAF shingles on the 4/12 roof with torch down on the 2/12 roof. My question is should the drip edge go around the porch on top of the torch down with tar substance covering the drip all the way around the porch? If so I don't like it but I have to live with it. I never expected to see tar troweled on my job but I don't claim to know anything about roofing either.


No Warranty Means- If it breaks in half you get to keep both halves.

Last edited by COLDIRON; 11-04-2012 at 08:07 AM. Reason: CHANGED TITLE
COLDIRON is offline   Reply With Quote
Old 11-04-2012, 09:37 AM   #2
Join Date: Nov 2011
Location: Hartfield VA
Posts: 33,368
Rewards Points: 11,862

Never seen it done that way. Only seen it under the roofing material.


joecaption is offline   Reply With Quote
Old 11-04-2012, 01:13 PM   #3
Join Date: Mar 2010
Posts: 2,318
Rewards Points: 1,164

What should the perimeter look like on a residential torch down roof? If the edge goes under the membrane shouldn't it have a finished edge somehow on top and around the torched down just to give it a finished look and to keep the wind from getting under it.
No Warranty Means- If it breaks in half you get to keep both halves.
COLDIRON is offline   Reply With Quote
Old 11-04-2012, 01:39 PM   #4
Roofmaster417's Avatar
Join Date: Jun 2010
Location: Springfield and Joplin Missouri
Posts: 981
Rewards Points: 500

Anytime drip edge is applied over roofing material the fasteners are exposed.

Exposed fasteners + Element exposure = Roof failure

Flat roofing systems have a greater chance for failure.When the water pools or moves very slowly the water will find a penetration point even more so with snow and ice.

Last edited by Roofmaster417; 11-04-2012 at 01:44 PM.
Roofmaster417 is offline   Reply With Quote
Old 11-05-2012, 09:57 PM   #5
Roofer Mike
Join Date: Feb 2012
Location: Miami Springs Fl.
Posts: 17
Rewards Points: 10

Roofmaster is absolutely correct. Here in Miami roofers torch flat additions a lot. Seems like every house has a Florida Room.

Simple Gaf Ruberoid Torch Granule System:

- Install GAFGLAS #75 or#80 base sheet to Code with roof nails and tin caps

- Torch a 10" strip Gaf Ruberoid Torch Smooth at eave

- A 1"X2" firring strip should be nailed along the top of the fascia to prevent water from running down the drip and onto the fascia. It's a spacer.

- Install 3"x3" 26ga galv drip-edge at eave and nail every 4 inches.

- Apply asphalt primer to deck-side flange of the drip-edge & allow to dry.

- Beginning at eave, proceed to torch rolls of Ruberoid Granule.

This technique sandwiches the drip-edge in rubber.


Last edited by roofermikeinc; 11-05-2012 at 10:06 PM.
roofermikeinc is offline   Reply With Quote

Thread Tools
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
Fix or Replace Roof Tile? greentrees Roofing/Siding 22 10-14-2013 09:01 AM
Proper transition between shed roof and shingled roof? aribert Roofing/Siding 9 04-12-2012 03:17 PM
Roof leak nightmare..... it won't stop amandat37 Roofing/Siding 52 04-22-2011 12:47 PM
The moving Ice Dams after using a roof rake ?? Canufixit Roofing/Siding 9 02-05-2009 07:33 PM
replace tar & gravel roof with shingles & torch down rt1035 Roofing/Siding 4 12-17-2005 05:39 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1