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Ryland · 07-13-11, 11:10 PM

I'm guessing you live way down south, seeing as how your house is built on a platform.
First off, no, it's not to much weight, the weight of you standing on the roof is going to be more weight focused on a single point then the 20 or so gallons of water up on the roof (less then 200 pounds) so if your roof can handle the weight of a person it can easily handle the weight of this tubing.
something to think about of course is that you are going to have little or no storage and because of the large open, uncovered, uninsulated area of your collector your collector is going to cool off almost as fast as it heats up, it will loose heat from all sides while only collect heat from the side facing the sun, it will also take a bit of time to heat up, so unless you tend to use all of your hot water between say 11am and 6 pm then you are going to be disappointed.
But will it work? yes, it would work best for heating a swimming pool but not well for heating domestic hot water.

07-13-11, 11:10 PM	#3
Ryland Master EcoRenovator Join Date: Mar 2009 Location: Western Wisconsin. Posts: 913 Thanks: 127 Thanked 82 Times in 71 Posts	I'm guessing you live way down south, seeing as how your house is built on a platform. First off, no, it's not to much weight, the weight of you standing on the roof is going to be more weight focused on a single point then the 20 or so gallons of water up on the roof (less then 200 pounds) so if your roof can handle the weight of a person it can easily handle the weight of this tubing. something to think about of course is that you are going to have little or no storage and because of the large open, uncovered, uninsulated area of your collector your collector is going to cool off almost as fast as it heats up, it will loose heat from all sides while only collect heat from the side facing the sun, it will also take a bit of time to heat up, so unless you tend to use all of your hot water between say 11am and 6 pm then you are going to be disappointed. But will it work? yes, it would work best for heating a swimming pool but not well for heating domestic hot water.