The New Home for the Sheet Metal Industry Forums

Go Back   Sheetmetal Talk > Sheet Metal Forums > Tinsmith Avenue

Tinsmith Avenue For those seeking knowledge on past techniques used by yesteryears tinsmiths. The history of Tinsmith goes back in time farther then this place can travel, but for those who want to explore, please share your findings here.

Share This Forum!  


Thread Tools Display Modes
Old 11-21-2009, 12:17 PM
cactassdupree cactassdupree is offline
Professional Member
Join Date: Aug 2008
Location: Sunny Florida
Posts: 602
Thanks: 161
Thanked 59 Times in 50 Posts
Default lineset roof flashings

Originally Posted by cactassdupree
Originally Posted by metalbelle
i would like to get some ideas on roof flashings. we have a commercial building with fan coil units inside and heat pumps outside on the roof. what kind of options do i have for a roof jack to run our linesets through. we do get snow and rain here in Oregon so they would have to be " waterproof ". also the building has a metal roof.
Being a "commercial" roof, me being from The Great State of Florida, I'm thinking it's a Flat roof. Iuse to do the penatration like Bud explained. That is until I har the Pipe Fitters would run out the side of the box and UP to the unit. That would create a water tunnel down the pipe and into the building. Not acceptable, I now build a flashing that is square, say 8"X8". This is about 10 " tall. (i hem the top). Them I build a "shoebox that is say 8"X12" about 8 " deep. I place the shoebox on top of the flashing with about a 2"lap. This makes the fitter create a "Drip Loop" with their pipe so the water can't run in. I adjust the contraption to fit the need. I can even have multipule sides for the pipes to exit for more than 1 unit. Get it? it?? dupree :roll:
4 got to tell ya- i spray that foam stuff round the opening to keep critters out
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


All times are GMT -6. The time now is 10:33 AM.

Powered by vBulletin®
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.