[RE-wrenches] Economics of physically attatched racks on flat roof

[Geoff Greenfield]

Wrenches and racking pros... 



I'm looking for thoughts regarding flat roof solutions.  We love the flexibility, speed and ease of ballasted solutions.  We sacrifice "perfect" or "better" tilt angle (we are typically around 35-40 north).  And most importantly, we are startting to bump into "value engineered" roofs that can't handle more than 2 lbs/SF (we will be making the live load/dead load arguements as per a previous thread, but the AHJ holds all the cards). 



So- what about doing a U-LA or other fixed mounting system on a flat roof... anyone have rough costs, experice, resources to share?.  We would have to have a roofer come and "w it ch hat" all penetrations....  work on a tall lift to through bolt to steel (powder actuated Hilti from above?).  Hmmmm  I think my labor will double.  Maybe I oughta just glue down some uni-solar and call it a day...    


For a brighter energy future, 

Geoff Greenfield 
Founder and CEO 
Third Sun Solar & Wind Power Ltd. 
340 West State Street, Unit 25 
Athens, OH 45701 

740.597.3111     Fax 740.597.1548 
www.Third-Sun.com 

Clean Energy - Expertly Installed 



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