Secondary Water Barrier On A Roof

In the event of a catastrophic storm that damages the roof of the home one of the ways people can prevent water intrusion is to have what is called a secondary water resistant swr barrier.

Secondary water barrier on a roof.

A secondary water barrier is the layer of material that is placed directly on the roof deck under the primary outer roof covering of shingles tile metal etc. Note abundant photographs demonstrating code complianceshall accompany this affidavit. Here are a few reasons why floridians find that building codes often require them to add this component to their roofing system. This serves as a barrier to prevent the water from entering the home even after the primary barrier the roof covering system such as shingles or.

Jim freedman of a l. A secondary water barrier shall be installed using one of the following methods when roofing replacement when reroofing. A underlayment shall comply with section r905 1 1 of the florida building. A secondary water barrier shall be installed using one of the following methods when roof covering is removed and replaced.

Weatherlock g granular self sealing ice and water shield leak barrier model 891705 view the owens corning total protection roofing system. The material is that tough. Outside the high velocity hurricane zone. 706 7 2 roof secondary water barrier for site built single family residential structures.

Owens corning 200 sq. For the south carolina safe home program when a home is being upgraded as part of. For the use of secondary water barriers on a national and international scale. I the contractor qualifier do affirm and certify the roofing diaphragm for the roofing system.

In fact when roofers need to replace a shingle roof equipped with a secondary water barrier they sometimes have to replace the plywood sheathing since the barrier peels up the wood ply during removal. The adhesive on secondary water barrier on florida roofs is so strong it does not lift up with high winds. While most of the nation is not at high risk for hurricane damage severe storms and other weather events that damage primary roof coverings also result in consequential damage so a secondary water barrier is a good idea for any building. A all joints in roof sheathing or decking shall be covered with a minimum 4 in.