Starter and Ridge Components in an Owens Corning Roof
Bulletin dated: August 2023
Owens Corning's lifetime-system guidance specifies suitable starter and hip-and-ridge components. Upside-down shingles and improvised scrap laminate ridge caps are not accepted alternatives
Owens Corning technical bulletin: Use of Hip and Ridge and Starter Shingles with Limited Lifetime Technical Bulletin.
What this means for your roof
Owens Corning’s lifetime-system guidance specifies suitable starter and hip-and-ridge components. Upside-down shingles and improvised scrap laminate ridge caps are not accepted alternatives. The bulletin explains why sealant position, joint layout and cap flexibility matter beyond matching the visible color.
A useful question for your contractor
Ask for starter and ridge-cap product names in the estimate, alongside the field shingles.
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: August 2023. The date shown identifies the manufacturer document used for this summary.
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.