A secondary water barrier - required to get a yearly discount by most insurance companies is: Install a 6" self-adhering modified bitumen strip to all plywood joints on entire roof system before base felt attached. Work must have pictures to document work performed to submit to your insurance company (discounts vary, check with your insurance carrier). Approximate cost for materials and labor is $3.00 - $5.00 per ft.
In conjunction with this information, Lyons Roofing is excited to get you insurance discounts with the installation of this Secondary Water Barrier (Also known as SWR), which falls under Florida's Wind Mitigation Inspections. This protective underlayment provides additional protection from water damage in cases where roof covering is lost, and can provide insurance credits or discounts if installed properly. Contact us today for more information!