Owens Corning WeatherLock 36-in x 66.7-ft 200-sq ft Polypropylene Roof Underlayment Item #57471 Model #63950002 Flushing these systems is the

Flushing these systems is the optimal solution for flushing line sets for R-410a conversions

Covers up to 10 sq ft and dries to the touch in 30 minutes

bluish-white daylight light

Not recommended for use on ABS piping installations

: 210 Degrees F

Owens Corning WeatherLock 36-in x 66.7-ft 200-sq ft Polypropylene Roof Underlayment Item #57471 Model #63950002 Flushing these systems is theResists cracking and breaking during installation due to excellent tear resistance Adheres to roof deck to prevent water migration, split backer sheet for easy application and positioning on the roof deck Slip resistant granulated surface allows for better traction Modified asphalt creates dependable, watertight construction that seals around nails and the taped selvedge edge improves the seal between courses