Products / Henry Blueskin RF200 Self-Adhered Roof Underlayment

Nominal 40-mil, film-surfaced, self-adhering SBS modified bitumen roof underlayment. The Florida Product Approval evaluation FL16724 (HVHZ) lists it under the ASTM D1970 material standard with accelerated weathering per ASTM D4798 and TAS 110. In the HVHZ it is listed under asphalt shingles, metal panels or shingles, slate or slate-type shingles and (as joint strips or valley liner) wood shakes and shingles, but not clay or concrete tile, with a 180-day maximum exposure when the roof cover is mechanically attached.