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Unitized Rainscreen Systems

Water is the most significant factor in the premature deterioration of building envelopes. It causes rotting of metals, molding of organic materials, and unintended stresses due to freeze thaw cycling.

  • Three conditions are required to allow water movement through building envelopes:

  • A source of water.
  • A pathway for water to flow.
  • A force to drive water along the pathway.

  • If any one of these conditions is eliminated, moisture penetration cannot occur. Applying rainscreen construction principles to the design of the exterior envelope controls and manages the driving forces that generate water movement into and through the envelope. The basic rainscreen system configuration incorporates two distinct material layers. The outermost layer is the facade cladding and the interior is the insulated and weather protected backup wall. These are separated by a properly ventilated air gap. Rainscreen exterior envelopes, although superior to the traditional face sealed barrier envelope systems, can be expensive and time consuming to construct.

    Sanford Contracting has combined our industry leading unitized wall manufacturing techniques with engineered cladding systems from numerous manufacturers to create affordable, high performance, unitized, rainscreen wall envelopes. Sanford can furnish numerous rainscreen wall claddings to meet any project requirements. Claddings can include composite metal panel, terracotta, fiber cement panel (FCP), high pressure laminate panels (HPLs), and metal plate. Our premanufactured rainscreen wall assemblies provide durable, weather resistant barriers with excellent sound and thermal properties. Sanford rainscreen systems are environmentally friendly and highly cost effective due to their long material life cycle and durable overall system performance.

    By premanufacturing our rainscreen wall systems, Sanford uses stringent quality control standards to ensure all required flashings, air barriers, insulation, support aluminum channels and terracotta clay veneers are constructed correctly. Common problems, such as multiple trade involvement or working under field conditions, are eliminated when selecting a unitized approach, resulting in a superiorly constructed exterior wall. Our systems have been repeatedly performance tested to guarantee they meet the most stringent project criteria for air infiltration, water penetration, thermal resistance, and seismic performance.

    Sanford engineers can custom design a wall rainscreen system to meet your project’s specific requirements. All of our designs are compatible with latest building codes, including the latest changes to both the energy conservation standards and LEED requirements. Sanford Contracting has repeatedly proven that innovative design, superior engineering, accurate fabrication and detailed erection leads to successful projects.

    • System Benefits:

  • Rain screen construction
  • Numerous exterior claddings, colors, configurations available
  • Superior construction method
  • Aesthetically versatile
  • High thermal performance
  • Superior factory built quality
  • Rapid installation shortens construction schedules
  • Recyclable materials/LEED credentialed
  • Completely engineered/single source responsibility




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    Areas Of Expertise

    • Light Gauge Metal Framing
    • Unitized Thin Brick Wall Systems
    • Composite Aluminum Cladding
    • Prefabricated Cold Formed Roof Trusses
    • Terracotta Tile Rainscreen Systems
    • Pre-engineered Masonry Backup Systems
    • Cold Form Steel Framing Design
    • Panelized Granite Wall Systems
    • Unitized Load Bearing Structures
    • Metal Panel Rainscreens
    • Natural Stone Veneer Claddings
    • Panelized EIFS & Stucco Wall Systems
    • Prefabricated Exterior Wall Panels
    • Cement Panel Rainscreens
    • Phenolic Panel Rainscreens
    • Unitized Cast Stone & GFRC Systems