When you're ready to stop counting on loud generators, picking the right solar panel mounts for rv setups is probably the most underrated area of the whole project. Many people spend weeks obsessing over battery amp-hours or the efficiency various panel manufacturers, however they barely give a second idea to the hardware that actually will keep those panels stuck to the roof. Honestly, it doesn't issue how expensive your solar panels are if they're vibrating loose or, worse, catching a crosswind and flying off into traffic whilst you're doing 65 throughout the interstate.
Choosing how in order to mount your gear is a stability between how very much work you want to do, exactly how much you believe in your roof's structural integrity, and how very much power you really need to pull from the sun.
Exactly why the Mount Issues More Than You Think
It's easy to look at a simple light weight aluminum bracket and believe it's just the piece of metal, but solar panel mounts for rv use have a pretty demanding work. Consider the environment upon top of a motorhome or a travel trailer. You've got constant vibration through the road, insane temperature swings, plus incredible wind pressure.
Over and above just staying attached, the mount determines your time yield. In the event that your panels are usually mounted perfectly flat, they're easier to set up, but they aren't going to catch as much sunlight when the sun is usually low coming. On the flip part, a complex tilting system might give you 20-30% more power, but it furthermore means you're rising up a ladder every time a person park. It's about what kind of traveler you are.
The Most Typical Sorts of Mounts
When you begin shopping close to, you'll realize there are really three or four main ways individuals get this done. Each has its own set of pros and cons, and what works for a massive Class A diesel pusher might be complete overkill for a small teardrop trailers.
Fixed Flat Mounts (Z-Brackets)
This is the "standard" for a reason. Z-brackets are usually simple, L-shaped or even Z-shaped pieces associated with aluminum that bolt to the panel and then to the roofing. They're cheap, they're incredibly sturdy, plus they keep the particular panels low account which means you don't have to worry just as much about low-hanging divisions or bridge clearances.
The downside? Airflow. Because they sit so close up to the roofing, heat can build up underneath the panels. Solar panels really get less efficient because they get hotter, so having a little little bit of a space for air to move is quite important. Most Z-brackets provide you with about an inch of space, which is usually enough, but it's something to bear in mind.
Tilt Mounts
If you're a severe boondocker who usually spends weeks in the middle of the particular desert during the wintertime, tilt mounts are a game changer. These allow you to unclip 1 side of the panel and prop it up at a good angle.
Since the sun sits lower within the sky throughout the winter months, a flat panel might only get the few hours associated with "good" light. Slanting them to face the particular sun directly may significantly boost your charging speed. The capture is that a person have to remember to put them down again before you drive away. I've noticed plenty of scary stories of individuals leaving their sections tilted and getting the wind copy them quickly the particular roof the minute they hit the highway.
Corner and Side Mounts (No-Drill Options)
For those associated with us who have a literal anxiety attack in the idea of drilling holes into a flawlessly good RV roof, there are plastic corner mounts. These are usually usually made associated with UV-resistant ABS plastic material. Instead of anchoring screws, you use a high strength adhesive (like Sikaflex) to bond the mounts to the roof.
These types of look a lot cleanser and obviously don't create potential outflow points. However, they only really work nicely on solid roofing like fiberglass or even metal. In case you have a rubber (TPO or even EPDM) roof, gluing your panels straight down is a dangerous move because the particular glue is just as strong because the bond between the rubber membrane and the wood underneath it.
The Big Debate: To Punch or Not to Drill?
This is actually the question that will keep RVers up at night. Nobody likes producing holes in their own roof. It seems wrong, and if a person mess it up, you're looking at water damage that can rot your ceiling just before you even observe it.
Heading the Bolt-Down Path
Most specialists will tell a person that bolting your own solar panel mounts for rv will be the only method to go for long-term peace of mind. If you do it right, it's not scary. You utilize the good amount associated with Dicor lap sealant—essentially a specialized caulk that stays flexible—under the bracket, over the screw brain, and around the particular edges. When that will stuff cures, it's basically an everlasting, water-resistant seal.
The main advantage here is safety. You don't have got to worry about an adhesive connection failing because of high heat or even age. If the particular bolt is in the rafters, that will panel isn't going anywhere.
The particular Case for Adhesives and VHB Tape
On the particular other side of the fence, you possess the "no-drill" masses. Many people swear by 3M VHB (Very High Bond) recording. It's exactly the same stuff they use to hold windows into skyscrapers and trim onto cars. It is definitely incredibly strong.
If a person have a fiberglass roof, you can use VHB video tape to stick your brackets down, then cover everything within a layer of Eternabond tape or lap sealant for extra protection. It's a great DO-IT-YOURSELF solution if you're terrified of leaks, but you have in order to be meticulous regarding cleaning the surface with isopropyl alcoholic beverages first. If there's a speck associated with dust or wax on that roofing, the bond won't hold, and your panels will ultimately become expensive frisbees.
Considering Roof Materials
Before you click "buy" on a set of mounts, a person really need to know what your homes roof is made of. This changes everything.
- Fiberglass: You're within luck. This will be the best surface for almost any mount. You may drill, you are able to glue, or you can do both.
- Plastic (EPDM/TPO): These are common on travel trailers. A person typically want in order to find a rafter and use screws here. Adhesives can in fact pull the plastic membrane right away from the wood in the event that there's enough blowing wind lift.
- Aluminum: Common on Airstreams. You'll want to be careful about "galvanic corrosion. " Basically, if a person put certain varieties of metal towards aluminum, they'll respond and start in order to corrode. Using stainless steel hardware and a barrier (like the rubber gasket or even lots of sealant) helps prevent this.
Don't Forget About Air flow and Spacing
When you're putting out your solar panel mounts for rv installation, it's tempting to cram as many panels as achievable into a limited space. But remember the things i mentioned about heat? Panels need to breathe.
If you're mounting multiple sections, try to leave a few inches together. Not just does this assist with cooling, it also makes it very much easier to get a wrench in presently there if you ever need to replace a panel or tighten the loose bolt. Furthermore, try to keep them away from points that cast shadows, like your A/C unit or TELEVISION antenna. Even a tiny bit of shade on the small corner of a panel can tank the power output of the entire string.
Maintenance Will be the Part Everyone Skips
Once the mounts are on and the sun is hitting the glass, it's simple to forget they will exist. But you really should make it a habit to climb up generally there at least two times annually.
Road vibrations are usually serious. I've noticed bolts that had been tightened using a rpm wrench slowly shake their way loose over 5, 000 miles of rough backroads. Give each bracket a good shake. If it moves even a millimeter, tighten it upward. While you're there, check your sealant. If it's starting to crack or peel, add a refreshing dab of Dicor. It will take five moments and could save you thousands of bucks in water damage maintenance down the road.
Final Ideas on Choosing Your own Setup
From the end of the day, the particular "best" solar panel mounts for rv are the particular ones that fit your specific rig and your convenience level. If you're a weekend warrior who stays in campgrounds with hookups, simple fixed Z-brackets are more than enough. If you're living off-grid and every watt counts, individuals fancy tilting mounts might be worth the extra effort.
Just don't cheap on the hardware. Use stainless metal screws, buy the high-grade sealant, and take your time with the measurements. It's one of those jobs where performing it right the first time means due to have to think about this again—and that's exactly what you need when you're out there enjoying the look at.