Dallas Roofing: Article About Common Incompatible Flashings Materials
Choosing the right flashings system is a vital part of keeping the roof safe from all types of damage. The flashings can help prevent moisture from spilling into the roof's deck. resulting in long term structural damage to the rooftop itself. When working with the Dallas roofing specialists, it is important for homeowners to select a primary flashings material that will be able to provide them with the degree of protection they need in their local area. However, not all flashings are designed to work with all roofing systems, and understanding incompatibilities can help homeowners save on future system repairs and replacements.
With most metal flashing or roofing systems, the safest strategy that professionals employ is to simply not mix metals that will come in contact with each other. Similar metals will be matched with other similar metals, such as aluminum flashing systems matched with aluminum fasteners and surfaces. If this is not possible, it is important for experts to select a secondary metal for the flashings that will not lead to galvanic corrosion. Sometimes a physical barrier will be introduced to provide an even stronger degree of protection.
To begin, most flashing systems should avoid direct contact with wet mortar during early installations. When aluminum flashing materials come in contact with alkali solutions like wet mortar, they will sustain a heavy degree of damage.
The roofing contractors at Total Roofing of Dallas can assist you with any questions regarding gutters or residential roofing.
In roofing situations where contact with the wet mortar is unavoidable, the roofing professionals will usually spray the metal with an acrylic coating or a lacquer to protect it from damage until the mortar becomes dry.
Another common material that can cause damage to flashing systems is pressure treated wood. Both standard aluminum systems and galvanized metals should never come into direct contact with modern pressure treated wood. Contact with these wood materials will usually result in a tremendous degree of corrosion. To avoid such damage, one common approach that professionals will take is to use peel and stick tape between contact points. This can be one of the most efficient ways to avoid long term damage to all components of the system.
Finally, homeowners should be sure to choose the right flashing system if they own a coastal home. Saltwater spray can be very corrosive to both steel and uncoated aluminum systems. It is not uncommon for these systems to begin failing as soon as they come in contact with the spray. Unfortunately, in these areas, the only way to avoid such damage is to use copper or stainless steel flashings.