DeVAC: For New Commercial Construction or Renovation

At The Window Man we carry a number of window lines perfect for commercial new construction or renovation projects.

For example, 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.


DeVAC's 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 consistently 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.

To learn more about the DeVAC 600 series, or Optimum or H-lines commercial products, stop by any of our three Northern Virginia showrooms today.

Fiberglass Windows

The Window Man is proud to carry Comfort Line's fiberglass windows. These superior windows boast:

* 3-1/4" Frame depths - Perfect for replacement jobs. With addition of nail fins and extension jambs, ideally suited for new construction jobs.


* Stepped, sloped sash design - Provides for water run off and utilizes exceptionally weathertight foam weather-stripping.


* All mitered Sash Design - Provides extra strength and gives sash a traditional appearance.


* 7/8" Insulated Glass - Built with Double Strength gladss and thermally improved "Intercept" spacers for energy efficiency. Select Low-E glass with Argon Gas, or HR-10 glass with krypton gas to further elevate performance.


* Drop-In Exterior Glazing with snap in glass bead - Provides an esthetically pleasing appearance and virtually eliminates water penetration.


* Integral Interlock - Provides extra strength and blocks air infiltration at the meeting rails.


* Fully Weather-Stripped Sash Perimeter - Fin/Pile and q-lon foam weather-stripping together reduces air infiltration and enhances energy efficiency.


* Easy Clean, Tilt-In Sash - No need to get the ladder out. both sashes tilt in for safe easy cleaning from inside.
* Pultrusion technology - Used to produce our Fiber Frame TM lineals which will not split, splinter, warp, swell or bow.
* Fiber FrameTM lineals - Thermally nonconductive. These lineals have relatively the same coefficients of expansion and contraction as insulated glass.
* The result is an energy efficient, virtually indestructible framing material offering maximum strength and stability, piece after piece.
* Optional real stainable oak interior
* Optional Muntin Bars-colonial or diamond.
* Optional customized V-groove glass and elegant bencil brass grids.
* Optional custom colors matched to your specifications.

Wood Stile And Rail Doors

There are a variety of wood species that you can use for wood stile and rail doors: oak, ponderosa and western pine, Douglas fir, hemlock, maple, mahogany and cherry are all great choices. To speak to one of The Window Man's representatives about the wood species that's right for your stile or rail door, stop by one of our three Northern Virginia showrooms today.