Self-adhered membrane needs a suitable, clean and dry substrate. GAF describes extra precautions in cool conditions and the importance of actual adhesion.
GAF technical bulletin: Cool weather installation of stormguard and weatherwatch.
What this means for your roof
Self-adhered membrane needs a suitable, clean and dry substrate. GAF describes extra precautions in cool conditions and the importance of actual adhesion.
A useful question for your contractor
Ask how membrane bonding will be verified before it is covered.
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 revision: February 1, 2021. This is the date of the manufacturer source, not a claim that this website guide existed on that date.
Read GAF: Cool weather installation of stormguard and weatherwatch
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.