DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Roof top AC unit mounting




Reply
 
Thread Tools Search this Thread Display Modes
Old 04-24-2011, 01:55 PM  
hrabini
Junior Member
registry_dropdown_22317_56415
 
Join Date: Apr 2011
Location: Whittier, California
Posts: 1
Default Roof top AC unit mounting

Is this true? should the AC unit just sit on the roof and be mounted to the roof via the duct work and not the stilts mounting hardware?

I have a Trane AC unit that is ontop of my roof. The roof has a slight angle to it.. maybe about 10 degree. I just had the roof shingles replaced as the roof was leaking and the roofer was good enough to lift the AC unit and re-roof the section under the AC unit.

Job is done roof is great, but the AC unit is no longer mounted to the roof. The AC unit sits on a metal stilt stand and the stand is what makes contact on the roof. The stand has mounting holes but the roofer says its not to be mounted otherwise the roof will leak where the stilts are mounted to the roof and that the AC unit is held in place by the ductwork. Is this true? should it just sit there and be mounted to the roof via the duct work?

Note: I live In California, we do have earthquakes from time to time here.


hrabini is offline  
 
Reply With Quote
Old 04-24-2011, 06:23 PM  
paul52446m
Senior Member
registry_dropdown_20127_56421
 
Join Date: Oct 2010
Location: Houghton Lake, Mi.
Posts: 435
Liked 1 Times on 1 Posts

Default

Quote:
Originally Posted by hrabini View Post
Is this true? should the AC unit just sit on the roof and be mounted to the roof via the duct work and not the stilts mounting hardware?

I have a Trane AC unit that is ontop of my roof. The roof has a slight angle to it.. maybe about 10 degree. I just had the roof shingles replaced as the roof was leaking and the roofer was good enough to lift the AC unit and re-roof the section under the AC unit.

Job is done roof is great, but the AC unit is no longer mounted to the roof. The AC unit sits on a metal stilt stand and the stand is what makes contact on the roof. The stand has mounting holes but the roofer says its not to be mounted otherwise the roof will leak where the stilts are mounted to the roof and that the AC unit is held in place by the ductwork. Is this true? should it just sit there and be mounted to the roof via the duct work?

Note: I live In California, we do have earthquakes from time to time here.
We normally fasten the mounting curb down to the roof. Then ducts go through that, and unit seals down on to the curb. I would not depend on ducts to hold unit. I always fasten my frames or curbs down to roof. Paul
paul52446m 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
mounting a ceiling fan? Philphine Electrical and Wiring 1 08-28-2008 05:46 AM
Ceiling Fan Mounting Screws ilslan Electrical and Wiring 1 03-14-2008 10:35 PM
Mounting a TV on the wall...help please.. deltafraternity General Home Improvement Discussion 1 10-23-2007 09:24 AM
LCD TV Mounting bhelton Electrical and Wiring 3 02-19-2007 04:13 AM
Mounting Celing Fan to a Box Beam spartan1979 Electrical and Wiring 4 09-01-2006 09:23 PM

Newest Threads

LATEST SPONSOR DEALS