"Superior high performance standards since 1947"

DeVac 600 Series
Dual Frame Thermo-Barrier

The DEVAC 600 Series high performance dual frame Thermo-Barrier aluminum windows have a wide airspace between interior and exterior glass panes to conserve energy and reduce outside noise penetration. The unique, non-structural DEVAC Thermo-Barrier provides the key to effective performance by meeting essential design criteria:

• Insulates interior frame and sash from costly thermal transfer and improves condensation resistance.
• Effectively seals against air and water leakage through barrier into wall structures.
• Allows freedom of expansion and contraction while keeping structural integrity between interlocking parts.
• Interlocks aluminum frame members so that forces generated by thermal movement and structural load will utilize the barrier material for it's greater compressive strength. A design principle proven by 30 years of service with no failure.
• Custom sized to 1/32 of an inch. Available as double-hung, horizontal slider, removable panel and fixed panel. Historical designs and special shapes are offered.

For New Construction or Renovation

Exclusive dual-pane/dual-barrier design* provides the highest STC (Sound Transmission Class) available in fully operating windows. STC's from 37 to 56 are obtainable in standard DeVAC window products glazed with common monolithic glass.

Devac's Thermo-Barrier™ frame and wide, trapped air space glazing system are key elements to the 600 Series' outstanding acoustic performance...performance not obtainable with laminated or sealed insulating glass.

Sound transmission loss tests consistenly show the DeVAC Acoustic Window system provides better STC ratings than the same thicknesses in other systems. There is no significant acoustic benefit from laminated glass in DeVAC Acoustic Windows, which means an economical installation that is not in conflict with life safety requirements. (Research tests also show a loss of acoustic performance when laminated glass is subjected to cool weather.)

With DeVAC, windows are not an acoustic "weak link" in exterior walls. In fact, selecting from many DeVAC product and glazing combinations to acoustically match the values of window and wall is the best way to assure that needed performance is provided without uneconomical over-specifying. Devac acoustic windows offer attractive, cost-effective sound control for new developments saturated by aircraft or freeway noise. The ease of maintenance, cleaning and operation, coupled with adaptable designs and accessories, also make DeVAC Acoustical Windows a top choice for retrofit at sites experiencing increasing disruption from outside noises intruding on the interior environment.

DeVac 600 Series
Acoustical Windows and Venetian Blinds

Exclusive double DeVac Thermo-Barrier design providesd maximum air space for highest STC (Sound transmission class) in fully operating windows. Average decibel reduction up to 56 are obtainable in DeVAC acoustical windows glazed with monolithic glass.

DeVAC STC ratings compare to:

• STC 43-6" painted concrete block.
• STC 48-8" painted concrete block.
• STC 56-12" reinforced concrete wall.

Features for Thermo Barrier and Acoustical Windows:

• Primed Billet 6063-T6 Aluminum Extrusions are 45% stronger than T5 temper commonlu used in other aluminum windows.
• Bush Joint Frame and Sash corners with frame corner gaskets and internally sealed sash joints for tight attractive fit
• Wide Trapped Air Space of over 2" seperate interior and exterior glass surfaces to provide beneficial thermal and sound resistance.
• Hollow Tubular Sill with Weep valve system effectively drains water to the outside while reducing air infiltration and noise penetration.
• DeVAC Non-Structural "T in the Box" Thermo-Barrier with over 30 years of proven performance.

DeVac 400 Series
Single Frame Non Thermo-Barrier

The DeVAC 400 Series offers high performance single frame aluminum windows for moderate temperature zones. Resistance to air and water penetration, and the structural characteristics, are similar to the 600 series making it a popular choice for the temerature weather of Souther Regions.

Improved thermal performance can be achieved by glazing the vertical or horizontal sliding windows with 1/2" sealed insulating glass. fixed models can accept 1-1/4" insulated glass or panels. The series can be coupled with interior and exterior trims used in the DeVAC "no tear-out" replacement systems.

Secondary Glazing Applications
The DeVAC 400 Series is also ideal as a "secondary" window when added to the interior or exterior of an existing single-glazed window system. this provides a cost-effective solution to energy savings at a fraction of the cost of replacing windows.. In addition, this secondary glazinbg system is a proven method to reduce outside noise penetration.

Performance Standards (reports are available)
Air Infiltration................under .15 CFM/FT crack @ 25 MPH
Water Resistance................No leakage at 8.0 PSF (56 MPH)
Structural Load.................Resists 60 PSF (150 MPH)