Use a tie down that wraps around the item and the rails.
How to attach something to a roof.
In the case of a naked roof you should be looping the rope through the car through the doors not the windows and around the object on the roof and a towel or blanket should be used to protect the roof of your car from the object.
Our professionals are experienced and trained in a variety of methods for attaching objects safely and carefully to your roof.
A professional will attach your shade sail to your roof at the soffit under the lower structural edge where it is safe.
If you still want to attach something to your roof call exterior remodel design for our team of roofing professionals to help you with your projects.
While this might work in some situations unless you keep the shingle flat against the roof and ensure the nails are at the correct depth there may not be enough support to hold the weight of your item.
If you have side rails and crossbars the straps can be looped around those.
You can also support your shade sail with freestanding poles that are not in direct contact with the house.
If you plan to install a camera on your roof or install a dish on a shingled roof surface you may need to use nails which create holes in an otherwise waterproof surface exposing the entire structure to moisture problems.
It s a much better idea to attach a shade sail to your other backyard structures such as your gazebo or trellis.
What types of tie downs work best.