IKO Wind Damage: A Broken Seal Is Not the Whole Inspection
Bulletin dated: October 2019
IKO explains that wind-damaged sealant may not recover its original strength. Creases, punctures and granule loss can accompany a broken bond
IKO technical bulletin: TBR82 Sealant Bond Damages Due to High Wind Events | Product Bulletin.
What this means for your roof
IKO explains that wind-damaged sealant may not recover its original strength. Creases, punctures and granule loss can accompany a broken bond. Its hand-sealing recommendation applies when excessive wind broke the seal but caused no other damage. A repair decision should distinguish an unsealed tab from a physically damaged shingle.
A useful question for your contractor
Were the shingles checked for damage beyond the sealant bond?
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 2019. The date shown identifies the manufacturer document used for this summary.
Read IKO: TBR82 Sealant Bond Damages Due to High Wind Events | Product 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.