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Frame
  • Window frames are constructed of pattern grade
    genuine mahogany (Swietenia macrophylla).
  • Other suitable species for paint, clear
    and stain grade applications available.
  • Standard frame thickness is 2 3/16" (56 mm);
    width is 2 3/4" (70mm) with laminated
    frame components.
  • Window frames are built to +/- 1/16"
    (1mm) tolerance.
  • Frames are manufactured with double mortise
    and tennon joints.
  • Jamb and sill extensioins available as required.
Window Sash
  • Window sashes are constructed of pattern grade
    genuine mahogany (Swietenia macrophylla).
  • Other suitable species for paint, clear and
    stain grade applications available.
  • Standard sash thickness is 2 3/16" (56mm) with sash
    components laminated for extra stability.
  • Other window sash thickness available as required.
  • Window sash widths and heights are built to
    +/- 1/16" (1mm) tolerance.
  • Standard window sash corners are constructed
    with double mortise and tenon joints.
  • Custom true divided lites (TDL) and/or simulated
    divided lites (SDL) in configurations as ordered.
Adhesive
  • All wood window components are bonded with
    a water resistant polyvinyl acetate industrial
    adhesive as manufactured by Kleiberit.
Finish
  • Undercoat and topcoat paint systems as
    available through Fine Paints of Europe.
  • Stain and semitransparent finish coats as
    available through the "Sikkens" program.
  • Other custom finishes available as required.



Hardware
  • Standard horizontal pivot hardware to be Unitas
    5 BO by G-U Hardware with a maximum
    sash weight of 385 lbs. (175kg).
  • Standard vertical pivot hardware to be Unitas
    93 BO by G-U Hardware with a maximum
    sash weight of 385 lbs. (175kg).
  • Standard horizontal pivot hardware for circular
    to be Unitas 4 by G-U Hardware with a
    maximum sash weight of 220 lbs. (100kg).
  • Other hardware applications with a maximum
    sash weight of up to 650 lbs. (300kg) are
    available.
Weather Stripping
  • Full perimeter elastropen weather stripping with
    overlapping corners. Secondary gasket system
    for sound retention available.
Glazing
  • Standard insulated glass units are 3/4" (19mm)
    thick with a 1/2" (13mm) air space. Other
    thicknesses available as required.
  • Glass options include but are not limited to:
    tempered, laminated, patterned, wire, spandrel,
    bent, restoration glass and various Low-E options.
  • Standard glass units are dual sealed with
    polyisobutylene/polysulfide or silicone and are
    certified by the IGCC to meet a CBA rating.
  • Glass units are blocked in glazing
    channel with neoprene setting blocks
    (70 - 90 durometer hardness).
  • Glass units are wet-glazed with a high
    performance one part silicone sealant
    (neutral curing).
  • Glazing channel is pressure relief vented
    and weeped.
  • Glass is retained in glazing channel by an
    interior wood stop nailed or screwed in place.
  • Other glazing systems available as required.


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Questions? Contact us at H. Hirschmann LTD, 467 Sheldon Avenue, West Rutland, Vermont 05777, 1-802-438-4447 or at the contact link above.
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