TAMKO TW FLASH-N-WRAP-40 Reflective Sheet Membrane is a 40-mil-thick, flexible, self-adhering, rubberized asphalt sheet membrane with a reflective aluminum top surface and a polymer film release on the adhesive side. TAMKO TW FLASH-N-WRAP-40 is well suited for application in cavity-wall construction and sealing window and door openings.

TAMKO TW FLASH-N-WRAP-25 Reflective Sheet Membrane is a 25-mil-thick, flexible, self-adhering, rubberized asphalt sheet membrane with a reflective aluminum surface and a removable treated release film on the adhesive side.