FRP’s high strength characteristics
combine with its light weight nature to produce a strength-to-weight ratio that continually out performs other materials on the market.
FRP products have tremendous corrosion resistance properties that result in a longer life expectancy with lower required maintenance than most other available material options.
Spunstrand® Inc. has been manufacturing underslab HVAC ductwork for over fifty years in both insulated and non-insulated forms. Insulated and non-insulated ductwork is available in, but not limited to, standard sizes 2″ diameter through 144″ diameter.
Our mine and tunnel ventilation ducts maintain a MSHA approval as a Class 1 rated duct system, and have been used in mining and tunneling applications now for 54 years.
For over 50 years, Spunstrand® Inc. has furnished miles of underslab HVAC duct, above ground industrial and municipal duct systems and various special applications. Installations are in every state and foreign countries. All these years and miles of duct have produced a multitude of reliable services available to engineers, contractors and architects.
Our services include: