Manufacturer's Specifications
for Maximum Roof Top Loads
The other important determinant in deciding on a roof top tent is
the weight. It is essential that you check the manufacturer’s
permissible top loading weight for your vehicle model. Every
vehicle manufacturer has a specification for maximum rooftop
loads while operating the vehicle. These standards may also
vary by country. Always check with the manufacturer of your
car and of your roof rack to determine the applicable weight
limitations as they vary from vehicle to vehicle.
Bear in mind that factory rack systems may seriously limit the carrying
capacity, or impose limits on durability under extreme conditions.
We recommend that you fit your vehicle with aftermarket engineered rack system, such as Thule or Yakima. Please see the section on off-highway use below.
Roof Rack System Load Ratings
AutoHome roof top tents are designed to mount simply on
engineered aftermarket crossbars, the same as you would use
to carry your canoe, kayak or bicycle. The rack system transfers
the weight to the structural parts of your car's roof.
Like vehicles, roof racks carry a dynamic weight rating,
which defines the tested limitations of the rack system when
the vehicle is in motion. Most racks carry a maximum 165 pound
dynamic rating, which means the rack can support 165 pounds
of weight while driving down the road. AutoHome roof top tents weigh
between 95 and 155 pounds, so the rack system can easily handle
the weight. When you are parked and camping, this is a "static
load", much more gentle and the racks can easily handle
the additional weight of gear and occupants.
Here is an example of how to calculate the permissible load
for two different vehicles using typical aftermarket engineered
roof racks and cross bars.
Off road Use: These tents are made to withstand
a lot of abuse, but we highly recommend, when mounting a tent
for off-highway use, that you employ THREE or more cross bars.
This helps to distribute the load evenly under extreme use
conditions.
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