WATERPROOFING AN EXPANSION JOINT
When including an expansion joint in your building, whether on the roof or exterior wall, there are many aspects to consider to prevent water from leaking through the joint into the building.
What's the Difference Between Miters
Knowing the difference between factory miters and field miters can eliminate concerns about whether or not your joint will truly be waterproof. When writing your specification, factory miters should be specified in lieu of field miters.