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QBase® Composition Mount

The QBase® Composition Mount is a strong and cost-effective method for installing solar panels during the construction of new composition/asphalt shingle roof for either a new home or a roof replacement. The base-and-post mount is specifically designed to fit into the workflow between the trades to make solar panel installation smooth and efficient.

The QBase® Composition Mount also works with a variety of metal shingle roof types, such as interlocking metal shingles and stone coated steel roofs. The base-and-post mount works with all standard rail-based racking systems and are fully engineered to meet code requirements and industry best practices.

Available in aluminum mill finish.

  • Download instructions for installing on a metal shingle roofs.
  • Download calculator to determine which product to use with your metal shingle roof type (Excel).


  • Flashing holds firm against wind-driven rain
  • All exposed hardware is 18-8 stainless steel
  • Meets or exceeds roofing industry best practices
  • Allows up to 4 structural attachments when required
  • 3031 lbs average ultimate pullout (Douglas fir)
  • 1972 lbs. average ultimate shear
  • Flashing is made of aluminum with no welds or seams to rust or rot
  • 25-year warranty
  • All hardware included
  • 100% IBC compliant


QBase Comp Mount Kit
Included in kitCast aluminum QBase
Aluminum post, 1-1/4'' x 3-1/4''
12'' x 12'' spun aluminum cone flashing
Two zinc-coated steel lag bolts, 5/16'' x 3''
EPDM post collar/counter flash
EPDM-bonded stainless steel washer, 5/16'' x 1-1/4''
Stainless steel machine bolt, 5/16'' x 1"
Stainless steel fender washer, 5/16'' x 1''
Stainless steel split lock washer, 5/16''
Grade-8 machine bolt, 5/16'' x 3/4''
Flashing size12" x 12"
Pullout/shear3031 lbs. average ultimate pullout (Douglas fir); 1972 lbs. average ultimate shear
Tools needed for installationTape measure
Roofer's bar/shingle ripper
Chalk line
Stud finder
Caulking gun
Appropriate sealant
Drill with 1/4" bit
Drill or impact gun with 1/2" deep socket
Applicable roof typesStandard and high-definition composition/asphalt shingle roofs with 5" to 5/12" courses; a variety of metal shingle roof types
Available finishesAluminum mill
Bronze anodized

Quick Install: QBase Composition Mount

Full Install: QBase Composition Mount



All IronRidge Systems have been listed to UL 2703, the standard for evaluating solar mounting systems. This ensures they maintain strong electrical and mechanical connections over an extended period of time in extreme outdoor environments.



IronRidge products come with a 25-year warranty, guaranteeing they will be free of defects in materials and manufacturing which materially impair the use of the products for the purposes for which they were designed.