Neufusion wrote:We have a huge RV and I was thinking about putting some reflective tarps over the top of it to cut down temps. They would lay flat on the roof and come out 1-2 feet on each side. I was either going to pull them flat against the sides and tie them to the RV and under it OR use some rebar stakes and pull them at a 45 degree angle to provide a little shade to the sides of the RV. I'd arrange them so the A/C condenser sticks out.
A friend mentioned this might not be a good plan because the tarps would blow around, rub the RV, and make a lot of noise.
What do you guys think? Good idea or no?
So the idea **is**
a sound one, however, I would amend with the following. First, the reflective material won't do squat for you unless you add a layer of insulating air under it. You'll only be able to reflect a small portion of the radiation that will be headed your way so its critical that there is a layer of air between the tarp and the top surface of the RV. If you stretch your tarp a couple of inches above the RV's roof you'll be doing great. The awning portion of this already has this built in and has the added bonus of preventing reflected light from the playa from cooking the south facing side of the vehicle. Longer is way better here because the sun is so high in the sky in August.
Second, consider very stout bungies along the tarp to prevent wind from ripping the fabric and/or tearing out grommits. More attachement points is better since you'll reduce wind load by splitting it with every additional attachement point.
Finally, make it so you can put it up and take it down easily. You wont want to drive aroud with a big sail on top of your RV.