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Corrosion-resistant, UV-resistant, impact-resistant fiberglass buildings

High-Quality Products

Our fiberglass composite products are corrosion-resistant, UV-resistant, and impact-resistant.

We offer options to make designing and specifying buildings easier.

Custom Projects

We offer an array of options to make designing and specifying what you need easier.

Turn-key and custom buildings for a variety of settings and industries.

Multiple Industrial Applications

You can find our turn-key and custom products in a variety of settings and industries.

We’ll walk you through the entire process, step by step.

Unmatched Support

Request a quote online or call us, and we’ll walk you through the entire process, step by step.

Fiberglass Buildings

You've got limited time and need a single line-item, easy-to-spec structure that lets you focus on other project details. Orenco Composites can help. We build high-quality, fiberglass-reinforced buildings for many different industries, including water and wastewater, telecommunications, power utilities, and transportation. Our prefabricated DuraFiber™ FRP fiberglass buildings are corrosion-resistant, UV-resistant, and impact-resistant.

If you need a rugged fiberglass building that can withstand 160 mph winds and support a 100-lb/ft2 live load, choose a DuraFiber Building. Request a quote or call us to see how we can help with your next project. Our experienced staff will walk you through the process, step by step.

Manufacturing Methods

All of our prefab industrial buildings are vacuum infused with high-strength fiberglass fabrics. In addition, DuraFiber buildings are molded with integral walls and roofs for a single-piece, leak-free shelter.


Our standard, 3-inch (76 mm) and 4-inch (102 mm) foam-core fiberglass walls and roof provide unsurpassed structural integrity, while keeping the interior warm with R-18 and R-24 insulation.


  • Lift station controls
  • Chlorination and de-chlorination
  • Motor control centers
  • Power distribution centers
  • Process and monitoring equipment
  • Communication equipment
  • Generator housing and sound attenuation
  • Chemical feed and storage


  • Lengths up to 50′ (15.2 m)
  • Widths up to 40′ (12.2 m)
  • Heights to 11′ (3.4 m)

In The News

Composites World Magazine: Composite buildings go monocoque. Superior protection from the elements plus fast, affordable installation and maintenance have quickly made ... Read More


Orenco Composites' prefabricated buildings feature ...

  • Single-piece, closed-molded fiberglass construction
  • Integral foam-core insulation in walls and roof
  • No wood embedded in the structure
  • Built-in internal pocket attachment system
  • Insulated fiberglass entry door with stainless steel hardware
  • Corrosion-resistant and UV-stable finish
  • Light and transportable; lifting lugs for moving/setting in place
  • 160 mph wind rating (258 kph)
  • 100 lb/ft2 roof-load rating (488 kg/m2)
  • Maintenance-free
  • 10-year warranty


Orenco Composites' prefabricated building can be  customized to meet your needs. Some of the options include ...

  • Interior and exterior lighting
  • LED lighting
  • Anti-skid, insulated fiberglass floor, integrally bonded and sealed
  • French/double doors
  • HVAC systems
  • Electrical outlets
  • Interior and exterior colors
  • Flame retardant to ASTM E84
  • Insulation values of R-24 or greater
  • Windows
  • Interior walls
  • Load centers and transformers
  • Control systems
  • Hazardous location components
  • Custom equipment

Document Resources

Review the documents below for more details. 

Product Video

Learn more about the features and benefits of DuraFiber Buildings.  

DuraFiber™ Buildings

Orenco Composites has taken the fiberglass technology developed for our wastewater markets and created high-quality, durable buildings and shelters.


Project Profile:
Waste Activated Sludge (WAS) Pumping Building

A client needed a building to house transfer pumps, mixing pumps, and associated electrical controls.


This fiberglass-reinforced DuraFiber building houses controls and pumps. It was sent to the site in two pieces and assembled by Orenco Composites technicians.

  • 19’ wide x 10’ high x 32’ long
  • Interior and exterior lighting
  • Commercial ventilation system
  • Wall knockouts for field-installed piping