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Square Base Flashing - Red Silicone

  • simple solution to flashing a penetration through a metal roof
  • has clearly marked diameters on each flashing
  • marked dimensions also allow for easy sizing to fit each individual application
  • the aluminum base on the upper lip is corrosion resistant and allows the flashing to conform to any panel configuration and/or roof pitch
  • available in EPDM or orange silicone, both flexible materials, and both resistant to ultraviolet rays, cracking & weathering

    Item # Description/Size Availability Qty Break Price Quantity
    MBASQ101RA
    #1 Square Base Flashing, Red Silicone | Fits Pipe Sizes 1/4" to 2 3/4"
    In Stock 1 $11.81
    MBASQ201RA
    #2 Square Base Flashing, Red Silicone | Fits Pipe Sizes 7/8" to 4"
    In Stock 1 $15.77
    MBASQ301RA
    #3 Square Base Flashing, Red Silicone | Fits Pipe Sizes 1/4" to 5 3/4"
    In Stock 1 $15.76
    MBASQ401RA
    #4 Square Base Flashing, Red Silicone | Fits Pipe Sizes 2 3/4" to 7"
    In Stock 1 $28.31
    MBASQ501RA
    #5 Square Base Flashing, Red Silicone | Fits Pipe Sizes 4" to 8 1/4"
    In Stock 1 $32.81
    MBASQ601RA
    #6 Square Base Flashing, Red Silicone | Fits Pipe Sizes 4 3/4" to 10"
    In Stock 1 $37.46
    MBASQ701RA
    #7 Square Base Flashing, Red Silicone | Fits Pipe Sizes 5 1/2" to 11 1/2"
    In Stock 1 $55.63
    MBASQ802RA
    #8 Square Base Flashing, Red Silicone | Fits Pipe Sizes 6 3/4" to 13 1/2"
    In Stock 1 $79.46
    MBASQ902RA
    #9 Square Base Flashing, Red Silicone | Fits Pipe Sizes 9 1/2" to 20 1/2"
    In Stock 1 $124.50
    MBASQ952RA
    #10 Maxi Square Base Flashing, Red Silicone | Fits Pipe Sizes 12" to 28 1/2"
    In Stock 1 $236.25


    1. Trim opening to 20% smaller than the pipe diameter.
    2. Slide down over the pipe.
    3. Apply urethane/silicone sealant between the flashing & the roof.
    4. Press down, bending the flashing to fit irregularities. Use a large-slot screwdriver to press into tight angles.
    5. Use fasteners to finish sealing.
    Test Type EPDM Silicone
    Advance ozone resistance test @ 500 pphm 70 Hours 70 Hours
    High Temperature:Intermittent-Continuous- +275ºF+212ºF +500ºF+437ºF
    Low Temperature:Resistance tested to-Tensile strength- -65ºF1,450 psi -100ºF700 psi
    Size Pipe Size Base Size Opening Diameter Material Part#
    1 ¼" to 2¾" 4½" Closed Red Silicone MBASQ101RA
    2 7/8" to 4" 6 " 7/8" Red Silicone MBASQ201RA
    3 ¼" to 5¾" 8" Closed Red Silicone MBASQ301RA
    4 2¾" to 7" 10" 2¾" Red Silicone MBASQ401RA
    5 4" to 8¼" 11" 4" Red Silicone MBASQ501RA
    6 4¾" to 10" 12" 4¾" Red Silicone MBASQ601RA
    7 5½" to 11½" 14" 5½" Red Silicone MBASQ701RA
    8 6¾" to 13½" 17" 6¾" Red Silicone MBASQ802RA
    9 9½" to 20½" 25" 9½" Red Silicone MBASQ902RA
    10 12" to 28½" 34" 12" Red Silicone MBASQ952RA

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