Instruction Videos


Our Products are Protected by U.S. Patent No. 10,501,939 and/or other U.S. and Foreign Patents Pending.

Nill Building Solutions products are quickly changing how contractors approach building. Some of the most prestigious builders and contractors in the world use our products, and now you can too.

5”X5” Stainless Flange – 3/8″ Threaded Port (NB1A)

Nill Building Solutions has revolutionized the flange that has been in use for decades by roofers worldwide by making it stronger, waterproof and eliminating common trouble areas while improving on efficiency. With three different installation options and customization for your application available, our product is ideal for installation of solar panels, HVAC equipment and much more.

Product Features:


  • Stainless steel construction

  • 1/8” Thick – Multiple thicknesses available

  • 6 counter-sink holes to receive pan head lag screws

  • 3” X 1/2” threaded post can be fastened from underneath

  • 3/8” waterproof threaded port standard for all your mounting needs

  • Various sizes available to suit your needs

  • Compatible with most popular roofing systems