At or below 40°F, Owens Corning calls for extra handling care and specific sealing procedures. Sun exposure, orientation and weather influence when the factory sealant bonds; shingles may also take longer to lie flat.
Owens Corning technical bulletin: Cold Weather Shingle Installation Technical Bulletin.
What this means for your roof
At or below 40°F, Owens Corning calls for extra handling care and specific sealing procedures. Sun exposure, orientation and weather influence when the factory sealant bonds; shingles may also take longer to lie flat.
A useful question for your contractor
Ask how perimeter hand-sealing and product-specific fastening will be handled.
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 edition: April 2026. This is the date of the manufacturer source, not a claim that this website guide existed on that date.
Read Owens Corning: Cold Weather Shingle Installation Technical Bulletin
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.