Roofing is considered fairly easy from the perspective of most home improvement contractors, but more has been forgotten about roofing than has been retained by a large percentage of today’s craftsman.
The difference between a “shingle applicator” and a true professional roofer is in the small details. But it is those small details that, when missing, cause leaks.
Flashing details are a huge problem category for the industry. Our knowledge as a slate roofing specialist has allowed us to keep sharp on flashing details. If you can keep a roof made out if individual pieces of rock from leaking, you understand flashing.
One such example is the last piece of step flashing along a perpendicular wall called “kick-out” flashing. The simple concept that water likes to flow along the path of least resistance can be simple to understand but harder to put into practice.
Here is a diagram of kick-out flashing from the James Hardie installation manual.
Here is an example of the damage we have found behind siding when a home is missing kick-out flashing.
The moral of this story? Seek out companies that have a culture of continuing education and carry certifications from the manufacturer’s they represent. There is always a cheaper price, but doing the job right, the first time is always the lowest cost…long term.