TL;DR
A roof jack is, in roofing parlance, either of two things: the flashed metal sleeve that weatherproofs a pipe or vent where it exits the roof, or the angled steel bracket nailed to the deck that supports a plank as a work platform on steep slopes. Both senses appear on reroof invoices—one as a flashing line item replaced with the shingles, the other as part of the crew's fall protection setup.
What it means
A roof jack is, in roofing parlance, either of two things: the flashed metal sleeve that weatherproofs a pipe or vent where it exits the roof, or the angled steel bracket nailed to the deck that supports a plank as a work platform on steep slopes. Both senses appear on reroof invoices—one as a flashing line item replaced with the shingles, the other as part of the crew's fall protection setup. Context and trade region decide which meaning is on the page.
Where it sits in the glossary
Roof jack is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
License: CC-BY-4.0 — quote freely with attribution to ProFix Editorial Team / ProFix Directory.