How to tell if roof flashing is installed wrong
Poorly installed roof flashing relies heavily on caulk rather than proper metal integration, leaving homeowners with leaks and visually unacceptable work. Without clear industry standards to reference, it becomes difficult to dispute substandard craftsmanship and demand corrections from a roofing contractor.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Looking up cut-joint counter flashing installation guidelines
- 2Saw cutting the brick and using brick flashing
- 3Using hit pins instead of pounding screws into the counter flashing
- 4Withholding payment until the issue is addressed
- 5Meeting in person with the contractor to point out the defect
- 6Seeking opinions and troubleshooting advice online
- 7Applying sealant or caulk to the fastener holes
- 8Replacing the damaged ridge cap sections
- 9Contacting the seller or manufacturer to dispute the warranty
- 10Coating the valleys with rust reformer or spray-on tannic acid solution to transform red rust into resistant black corrosion
- 11painting the metal to match the wall or trim
- 12replacing it with stepped counter flashing cut into the mortar joints
- 13tearing off the roof to start fresh
- 14hiring new roofers with better attention to detail
- 15consulting building codes for proper installation requirements
- 16Using roofing screws with silicone or rubber gaskets
- 17Pressure fitting the flashing and nailing it to the wall
- 18Using weighted adhesive materials like roofing tar with a brick
- 19Hiring a roofing contractor for professional repair
- 20Checking the sealant periodically for deterioration
- 21reaching out to the manufacturer of the panels for guidance
- 22climbing on the roof to take and share more pictures for online opinions
- 23researching custom flashing and z-bar solutions
- 24Using better quality flashing material
- 25Replacing cheap flashing
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“However one thing that sticks out like a sore thumb is this (to me) huge piece of flashing running down the brick next to our entryway.”source ↗
“I just had my roof done and noticed this hump by my front door.”source ↗
“I do not feel comfortable handing the check over until it is fixed.”source ↗
“We were not good for a while and are now having to tear it off and start fresh because the installers did a terrible job.”source ↗
“the flashing will leak and caulk will fail”source ↗
“Doesn't make sense to me and I checked, it's even nailed through the drip edge. Is this top tier BS?”source ↗
“Is this done correctly?”source ↗
“No , looks terrible”source ↗
“No way to know for certain how far those staples penetrate but at the very least they go through the layer beneath which compromises the way shingle layering works.”source ↗
“So in few years ready for replacement, should I get someone to paint flashing with some rust paint just to stretch it in to … whole new roof”source ↗
“that channel of caulk at the top of that metal is all that stands in the way of a major leak.”source ↗
“Is there some standard/ authority that I can point to when talking with the roof company?”source ↗
“They sent someone out this morning to look, and their response was, 'They saw nothing out of the norm.' So I will be meeting with them today to explain and point it out to them.”source ↗
“My roofer has completed my install and I'm pretty unsatisfied with the pipe venting here.”source ↗
“Before I contact the roofer, I want to make sure I know what the right solution is. Can anyone guide me?”source ↗
“I'm trying hard not to just lose my cool on the roofer but this is an expensive roof and I'm kind of pissed.”source ↗
“Don’t cheap out on flashing. Shingles are easy to replace. Bad flashing causes the real headaches.”source ↗
“Now I’m a bit lost on the right way to handle this and wondering if it would just be better to hire someone.”source ↗
Where this came up
People with this problem also raised
- 10HVAC lineset leaking through the roof
- 6How to temporarily waterproof a damaged roof until replacement
- 7Uneven shingles and bulges after new roof replacement
- 4How to tell if worn chimney flashing is leaking
- 6How to fix cement fiber siding touching roof shingles
- 3Roofers left mono roof top exposed without a cap