Insulation & Wrap

Certainteed –

Cost-Effective Alternative to Double Wall Systems

ToughGard® Ultra*Round is acoustical and thermal insulation for lining the interior of spiral and round sheet metal ducts and plenums in HVAC systems. It is used to reduce heat gain or loss while also absorbing unwanted crosstalk, equipment and air rush noise.

CertainTeed ToughGard® Ultra*Round spiral duct liner provides many benefits to both the contractor and building owner:

  • Eliminates the cost of perforated metal lining required for double wall construction.
  • Simplifies fabrication and installation in the shop and on the job.
  • Reduced weight compared to double wall construction.
  • May eliminate the need for pins and adhesives in most straight duct sections.
  • Improves acoustical performance over double wall systems.
  • Lower installed cost than double wall systems.
  • Tough, durable and cleanable air stream surface that contains an EPA registered antimicrobial agent.



5′ Duct Wrap to Accommodate Larger Ducts and Cleaner Installs

CertainTeed WideWrap Duct Wrap Insulation offers the same unparalleled thermal properties and qualities as SoftTouch Duct Wrap, but is available in 5′ widths, allowing for less labor, less waste, and a cleaner installed appearance.

WideWrap Duct Wrap products are used to insulate rectagular and round heating, ventilating, and air conditioning ductwork.

  • This blanket-type insulation is composed of glass fibers bonded together with a thermosetting resin. It’s available unfaced or with an FSK vapor retarder facing. On faced products, a taping tab is provided on one edge for ease of installation.


  • Lower Energy Usage: Duct wrap products provide thermal efficiency that reduces unwanted heat loss or gain from equipment and ductwork. This means a likely savings of energy and improved system performance.
  • Condensation Control: When properly installed in the correct thickness, duct wrap virtually eliminates condensation problems on cold duct surfaces.
  • SoftTouch: Our duct wrap products are now made with SoftTouch for a softer, less itchy product.
  • Only product available in 5′ width to accommodate larger ducts