With the third option crossbars with side rails you can secure an item to the side rails and run tie downs from front to back securing them to the crossbars.
How to attach tarp to roof rack.
Screw the 2 by 4 directly into the roof to secure it.
Lay more 2 by 4s on either side of the tarp and attach those as well for a tight well secured water barrier.
To begin securing the tarp screw through the rolled 2 x 4 boards with your screw gun.
Secure the tarp s remaining sides with additional 2 x 4 boards using your screw gun and screws.
The variations of roof racks we produce differ in the amount of crossbars and the mounting style.
The 2 by 4 should be about 2 feet longer than the tarp width.
Lay as many 2x4 38 x 89mm wooden boards across the tarp as you see necessary and screw them in with 2 inches 5 1 cm screws.
The reason for the longer nails is to go through the furring strips the tarp and then just enough length will be left to bite into the roof sheathing.
Then fold the excess tarp under a few rotations for a tight clean fit.
Fully secure your roof tarp to prevent flapping.
Tie some cotton rope to each corner sew some rags or suede patches to the eyelets of the tarp that go along the roof and then tie off over the roof of the vehicle to the spokes in the wheels then prop the tarp as before.
We do not recommend the 2500 systems for a roof top tent as extreme weight increases can alter the engineering of the product.
Stack items evenly across the roof and in the center of the doors.
Our fixed mounting point trackmounts backbones and gutter mount systems can all handle the load rating of a roof top tent.
This will prevent water and debris from entering the damaged area.
The screws must pass securely into the roof.
The second option is the side racks.
On each side of the roof you ll see a rack that runs the length of the roof of the vehicle.
If you have a roof rack the straps ropes can be looped around the side and cross rails.
Quick trick episode 11 how to setup a tarp without using knots.
Use a tie down that wraps around the item and the rails.
The boards that are attaching the tarp to the roof are known as anchor boards.
Lighter goes lower place heavier items on top of lighter items.
Watch this video to find out more.
To fasten the furring strips to the tarp and roof use 2 to 3 galvanized roofing nails.
Use felt roofing nails with a plastic washer to help secure the tarp to the roof.
In all events remember to set up your lean to on the up hill side of the vehicle or you will wear the run off from the roof.
If you feel that the anchor boards aren t enough to secure the tarp to the roof or you see some areas that are loose you should act.