Durability. Performance. Your Brand or Ours.

Nex Matrix manufactures premium synthetic roofing underlayments—engineered for lasting protection and customizable to your brand. From private-label production to our flagship BlackKnight™ line, we deliver performance that stands guard over every roof.

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Image of synthetic roofing underlayment — Premium synthetic roofing underlayment by Nex Matrix

Engineered for Strength & Safety

Built to outperform traditional felt and stand up to tough job sites.

Tear-Resistant Substrates

Woven and non-woven bases deliver high tensile and tear strength for rugged handling.
Slip-Resistant Surface

Textured walk surface designed to enhance footing in dry and damp conditions.
UV-Stabilized

UV-stable coatings to support extended exposure during staging and installs.
Lightweight & Efficient

High coverage per roll and light weights to speed installation and reduce fatigue.

Private Label Solutions

Build your brand with a manufacturing partner trusted by leading distributors.

Nex Matrix offers full private-label manufacturing, packaging, and design services to bring your roofing underlayment line to life.

Custom facer colors & prints Branded packaging & labeling Regional formulation options Flexible MOQs & lead times Design & compliance support

Request a Private Label Quote

BlackKnight™ Synthetic Roofing Underlayment

Battle-tested protection for every roof.

BlackKnight™ delivers industry-proven performance—rugged, lightweight and designed for reliable water-shedding under shingles, metal, and select tile systems.

High tensile strength & nail sealability for secure fastening and reduced blow-offs.
Superior water-shedding performance to protect the deck during install.
Broad compatibility with asphalt shingles, standing seam metal, and synthetic shakes/shingles.
Made by Nex Matrix with rigorous in-process quality controls.

Download BlackKnight™ Specs Become a Distributor