How Does A Roof Box Work

Because cars come in all shapes and sizes roof bars are sold in three separate parts.

How does a roof box work. A roof box is a large box that can be attached securely to the roof of your car. Roof bars for cars with solid roof rails. One of the most common types of static roof vents is the box vent. This type of vent is exactly what it sounds like.

Trust us we ve done the engineering and we know it works. Continuous ridge vents are more effective because they are installed at the peak of a roof s ridge allowing for warm air to escape from the attic. They tend to be found on cars from roughly 2006 onwards and are flush with the car roof ie there s no gap between the roof and rail. It has the ability to work with vaulted ceilings and you only need one of them to get the job done for ventilation as compared to multiple box vents.

Again most commonly found on estate cars the solid roof rail pictured below is a more modern version of the raised roof rail. It also works better because it creates a vacuum. Roof boxes are designed to offer additional storage space for things like sleeping bags suitcases sports bags outdoor or camping equipment or even the odd bit of sport equipment. The bars themselves foot packs to attach to the bars and fitting kits which connect the feet to the roof.

Vehicle weight limits a common question people ask is what affect the added weight of people inside a tentbox has on a vehicle roof load limit and how a tentbox can work with this added weight. But no matter how aerodynamic it might look it also alters the flow of air around your carefully shaped wind tunnel tested. If your car has open rails factory fitted roof rails which come out of the roof you may only need bars and a foot pack. Adding any roof box increases frontal area of your vehicle of course.