Flat Roofs

D-Dome R2 on flat roof

Mounting systems

K2 Systems' Catalog


All components at a glance


We show you all our components clearly arranged by system. The most important accessories are also listed.


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K2 systems for flat roofs are suitable for many substrates such as concrete, membrane, built-up and gravel.

Both single and double elevation systems are possible. The mounting angles range from 5 - 45°.

  • Single elevation
    • CrossRail Tilt Up System
  • Double elevation
    • D-Dome Railless² System at a 10° fixed tilt


Assembly Instructions
D-Dome R² Assembly Instructions US01-01220
CrossRail Tilt Up Assembly Instructions US01-01220
Product Sheet
D-Dome R² Product Sheet US01-0121
CrossRail Tilt Up Product Sheet US01-0121
Technical Sheet
D-Dome R² Technical Sheet US01-0121
CrossRail Tilt Up Technical Sheet US01-0221
CAD Files
D-Dome R² CAD Blocks
D-Dome R² Technical Drawings DWG File
D-Dome R² Technical Drawings PDF File
CrossRail Tilt Up [44-X, 48-X] CAD Drawing DWG File
CrossRail Tilt Up [44-X, 48-X] CAD Drawing PDF File

T-Foot X

Our T-Foot X allows you to install our Cross Tilt Up System to a flat or low slope roof. The T-Foot X is a 6" roof attachment with 3" of height adjustability.

Low Slope Roof Products

This article goes into depth on K2 Systems' flat roof solutions and which applications are best for each respective product.

Base: Plan Your D-Dome Railless² System Online

Become a certified user, design your own system, create a ballast plan and generate a report.


Learn more about K2 Base.