Originally Posted by Seann45
When Mustang Don sees this post he will have much useful stuff to add. Because panel size does not match roof rafter spacing you will not be able to get them all on rafters but as long as you use angle aluminum the entire length of the panel and 4 screws into the roofing material evenly spaced you should be OK..
Seann is correct... I made a few calls prior to mounting my panel and not mounting them to the roof supports is NOT
an issue. It would be next to impossible to align anyway. I received many requests on how I mounted my panel so I made a document and attached the step by step instructions below. It has been 2 years that they have been mounted and we have not had any issues.
The SOLAR panel you decide to purchase is totally up to you. I opted for the HIGH voltage panels (31Volts - same as those used on homes) and a Morningstar MPPT 60 (Amp) SOLAR Charge Controller. I opted for the 60 Amp as I already knew that I would be expanding my system and did not want to REPURCHASE another SOLAR Charge Controller ($$$$).
My reasoning for the HIGH Voltage (250 Watt) SOLAR panel is because I wanted to get the most out of the available sunshine. That panel with the MPPT 60 gives me a continuous average of 19.5Amps for a good part of the day. When I install the next 2 panels they will put me at 60 Amps, which should be more than enough for any of my needs.
You can use cardboard cutouts the same size as the panels you select and lay them out on the roof to see how you can arrange them.
Before you purchase anything, sit down and do the necessary calculations so you do not have to redesign your system after your initial purchase ($$$). With a planned system you can start small and add without repurchasing things.
Just my thoughts,
2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package
Our Solar Album http://www.jaycoowners.com/album.php?albumid=329