JointFlash™ is a form of junction flashing made entirely from carbon black high density polyethylene (HDPE).
Through simple design and functionality, JointFlash provides an economical solution while still offering competitive advantages over every other junction flashing available on the market.
JointFlash is a safe and economical solution for flashing both fiber cement and wood lap siding.
The user-friendly polyethylene flashing system is perfect for both residential and commercial siding applications.
Easy To Install
No Sharp Edges
Saves Time & Money
JointFlash does not require peel and stick adhesives that are inconvenient and cumbersome. The product slides conveniently behind the siding and is held securely in place as you nail the board. No other flashing system is installed easier or quicker.
Install the first pieces of lap siding without nailing the end near the butt joint.
After working the steps up the wall, simply tuck the piece of JointFlash behind the loose end of the previously installed siding. Make sure the JointFlash is centered on the joint and is overlapping the course below by at least one inch. It may be necessary to drive a nail through the siding to hold the JointFlash in place.
Install the remaining piece of siding to finish the course. Nail the last nail at the butt joint as usual. The nails at the ends of the pieces at the joint will hold the JointFlash securely in place.
JointFlash was created in 2013, with the intent of making an affordable and easy-to-use junction flashing available to everyone. Evergreen Wholesale LLC developed JointFlash as a solution to improve the fiber cement and wood lap siding installation process.
JointFlash is readily available anywhere in the country through our network of dealers. Wherever you are located, JointFlash is available for you to purchase and use on your next siding project.