TL;DR
A gutter mitre is the corner fitting that joins two gutter runs where they meet at an inside or outside corner, available as a factory box mitre, a strip mitre that covers a field-cut joint, or a hand-cut custom corner. Corners concentrate water flow and thermal movement, making mitres the most leak-prone points in a gutter system; quality work seals them with gutter-grade sealant and rivets rather than caulk smeared over gaps.
What it means
A gutter mitre is the corner fitting that joins two gutter runs where they meet at an inside or outside corner, available as a factory box mitre, a strip mitre that covers a field-cut joint, or a hand-cut custom corner. Corners concentrate water flow and thermal movement, making mitres the most leak-prone points in a gutter system; quality work seals them with gutter-grade sealant and rivets rather than caulk smeared over gaps. Seamless installers often hand-mitre corners for a tighter joint than boxed parts allow.
Where it sits in the glossary
Gutter mitre 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
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