9.26.11.1.(1)

Intent 1:

To limit the probability of:

• slow evaporation of solvents, which could lead to the formation of blisters, which could lead to compromised watertightness of membranes,
• softening on exposure to heat from the sun, or
• flow under gravity, which could lead to membrane slippage and insufficient thickness at high points of roofs.

This is to limit the probability of compromised continuity or water resistance of membranes, which could lead to water penetrating directly to roof decking or sheathing, which could lead to deterioration, which could lead to the structural failure of roofs or assemblies protected by roofs, which could lead to harm to persons.