The QBase Mount is a strong and versatile post-style mount with various post height options. Formerly sold in kits (QMQLSH and QMQDM) the components can now be purchased separately and combined to build a custom solution that best suits your project. The QBase Mount ships without fasteners, allowing the project engineer to specify the fastener that best fits the project requirements.

Features

• QBase Mount components are all sold as separate SKUs so that you can mix and match parts, tailoring your system to your exact specifications.
• Eight available post heights: 3.25", 4.5", 6.5", 8.5", 11.5", 12.5", 14.5", 17.5"
• 2 or 4 hole mounting options. Attaches to the deck or structural member
• QBase Mount works on TPO, PVC, EPDM, built-up roofing, composition shingle, tile, shake, slate and metal shingle roof types.
• 25-year warranty
• Meets or exceeds roofing industry best practices
• Works with all leading racking
• Available through leading distributors
• Installation Guide (PDF 300K) | Download
• Flashing Guidelines (PDF 6.75M) | Download
• Engineering reports - 7 inch (PDF 891K) | Download
• Engineering reports - 9 inch (PDF 725K) | Download
• Engineering reports - 12 inch (PDF 976K) | Download
• Engineering reports - 7 inch on steel (PDF 673k) | Download
• CAD drawing - PDF (121K) | Download
• 25-year Limited Product Warranty (PDF 613K) | Download

QBase Mount Components

Aluminum Base

The cast aluminum QBase base ships with a 5/16"-18 x 3/4" Grade-8 machine bolt that features a long-life coating. Prior to fastening, it is inserted into the bottom of the Base to attach the post. The QBase accounts for 1/2" of the net height of the complete assembly.

Fastening

The Base can be fastened to a either a structural member or directly to the roof sheathing using up to 4 fasteners. When utilized as a rafter-attached mount, two 5/16"x3" stainless steel lag screws are recommended, and test results are available in the Resources tab. Other fasteners and mounting locations should be determined by the engineer of record and approved by the AHJ prior to use and shall have adequate pullout strength, lateral and sheer capacity.

Post

The aluminum post is available in eight height options

• 3.25"
• 4.5"
• 6.5"
• 8.5"
• 11.5"
• 12.5"
• 14.5"
• 17.5"

Note that the net assembly will be 1/2" greater than the post size due to the 1/2" added by the QBase. Each post ships with EPDM washer to keep water out the post and 5/16"-18 stainless steel post-to-rack hardware and to attach the bracket of your choice to the top of the post.

Brackets

The post-to-rack hardware can be used to connect a variety of brackets to the top of the post.

Flashing

The QBase Mount is flashed to the roof using flashing and methods specific to the roof type. Flashing solutions are available for most roof types, available here. Flashing may also be obtained from third parties. Guidelines for flashing the QBase Mount based on roof type

Flashing Guidelines

The QBase Mount is flashed to the roof using flashing and methods specific to the roof type. Flashing solutions are available for most roof types, available here. Flashing may also be obtained from third parties. Guidelines for flashing the QBase Mount based on roof type are available below.

• Low Slope Roofs Flashing Guidelines | Download
• QBase Comp Shingle Mount Install Instructions | Download
• QBase Universal Tile Mount Install Instructions | Download
• QBase Shake, Slate, & Metal Shingle Roof for Mount Metal Shingle Roof Instructions | Download
• QBase Shake, Slate, & Metal Shingle Roof Mount for Shake and Slate Roof Instructions | Download
• Waterproofing with ChemLink's E-Curb Penetration Seal System | Download

QRail Tilt System

The QBase Mount combines with the 5 or 10 degree tilted L-feet and the QRail racking system to create a UL-2703 certfied fixed tilt system.