Home owners easily confused how a third nail can help, and it can even be frustrating to learn you need it after having a brand-new roof installed recently. Why didn't the roofing company do it while they were at your house doing the roof?
We will explain some of these issues to help you make an informed decision now.
First, find out what the difference is between toenails, hurricane straps (wraps), and clips.
This means the trusses in the attic are attached to the walls of the home with nails driven in at angles called toenails. (No insurance credit for this type of attachment)
This is the first type of roof-wall attachment that receives an insurance credit. Most older homes will qualify for clips. Clips only connect on one side of the roof truss and require 3 nails. Clips can be added in most houses that only have toenails
Single wraps will wrap over roof truss to the opposing side and require a minimum of 2 nails on the front of the strap and one on the opposing side
Typically, a roofing company is not going to have all the roof decking (plywood) removed that would allow them to have access to all the locations that need to be retrofitted with a third nail. The only way to access all the required areas is from inside the crawl space or through the soffit.
Not only will an addition of the third nail save money on your insurance, but it also provides additional uplift protection during high wind events.