Replacing one roof plane requires a sound tie-in to adjoining roofing. GAF describes underlayment laps, ridge ventilation clearance and cap replacement.
GAF technical bulletin: Roof repair underlayment requirements for hips and ridges.
What this means for your roof
Replacing one roof plane requires a sound tie-in to adjoining roofing. GAF describes underlayment laps, ridge ventilation clearance and cap replacement.
A useful question for your contractor
Ask how the repair crosses the hip or ridge without disrupting drainage or ventilation.
Ask for the answer to be tied to the actual roof condition and the exact product being installed. Keep the agreed repair or installation detail with your estimate and project photos.
Bulletin dated: October 28, 2024. This is the date of the manufacturer source, not a claim that this website guide existed on that date.
Read GAF: Roof repair underlayment requirements for hips and ridges
This homeowner summary explains the cited bulletin. The complete manufacturer document and current product instructions govern the installation details. A requirement for one manufacturer or product should not be transferred to another without checking.