ALPENGLASS/HEAT MIRROR
SPECIFIC GLAZING INSTRUCTIONS

[Failure to follow these instructions will
void the warranty and may cause the unit to fail.]

Heat Mirror must be handled, stored and installed in strict accordance with approved insulating glass procedures as detailed in the GANA Glazing Manual: Available from:

  GANA
  2945 SW Wanamaker Dr., Suite A
  Topeka, KS 66614-5321
  785 271-0208  Fax:  785 271-0166
  www.glasswebsite.com
  1. Size Limitations: 
    Southwall Technologies' wavelength-selective film has a coating width of 72 inches and, as a result, Heat Mirror units must have one dimension which is 72 inches or less.  Unit lengths can be as long as 175 inches.

  2. Breather Tube Instructions:
    Some Heat Mirror units are equipped with pressure equalizing breather tubes.  DO NOT TWIST, PULL OR CUT  this tube or pull out from unit.  This breather tube must be completely closed upon arrival by crimping twice with pliers.  If possible, units should be installed with the breather tube in an upper corner position, pointing downward.

  3. Flush or Structural Glazing:
    In the event that the project dictates the use of butt-glazed or structurally-glazed product, this must be disclosed and written into the specification prior to the project bid.  Heat Mirror fabricators must be apprised of this condition in advance of quoting or fabrication.

  4. Polyurethane-Sealed Units:
    Standard Heat Mirror units are fabricated with a polyurethane sealant which must not be exposed to sunlight.  The glass unit edge, spacers, and sealant must be completely covered (captured) by the framing system (9/16" minimum sight line coverage).  These organically-sealed units DO NOT lend themselves to two-sided or structurally-glazed applications.

  5. Glazing Materials:
    Heat Mirror insulating glass units must be installed with glazing materials and sealants compatible with PRC-DeSoto PRC 4429HM polyurethane sealant, or with Dow CorningT 3-0117 silicone insulating glass sealant. It is the glazier/installer's responsibility to verify framing design compliance and glazing material compatibility prior to installation. For compatibility information please call Alpen Energy Group.
  1. Heat Mirror Transparent Film:
    The exterior side of each Heat Mirror unit is clearly marked, and must be glazed accordingly to maintain warranty coverage.

  2. Storage Requirements:
    Heat Mirror insulating glass units should be installed promptly.  If required, storage facilities must be at moderate temperature, dry, and covered.  Breather tubes must be closed upon arrival.  Units must be covered or shielded from sunlight exposure.

GENERAL GLAZING INSTRUCTIONS:

(1)  Glazing Materials:  Neoprene gaskets or non-hardening, non-corrosive glazing tapes or sealants must be applied in such manner as to effect and maintain a watertight, weatherproof seal for a period of time equal to the Heat Mirror warranty.  All glazing materials must be compatible with polyurethane for Heat Mirror units sealed with this material.

(4)  Weep (Condensate) System:  Insulating glass units must not be exposed to moisture accumulation or high humidity dew points.  The glazing system design and installation must provide a positive weather seal and unobstructed weep drainage.

(2)  Setting Blocks:  Neoprene or silicone blocks must be placed at unit "quarter points" and equally support insulating glass unit inner and outer lites.  Setting blocks should be 4" to 6" long and 1/8" wider than the thickness of the unit as indicated in the GANA Glazing Manual.

(5)  Sight Line Coverage (Bite):  Frame and gasket materials must provide a least 9/16" sight line coverage (bite).  Insulating glass sealants and spacers must be completely covered by the framing system.

(3)  Edge Clearance:  Unit must be centered in the opening so that minimum spacing (1/4") exists between edge of glass and frame (1/8" on small units).  No wood or metal shall contact the glass at any point in the frame.  Face and edge clearances shall comply with GANA Glazing Manual, Chapter IX minimum recommendations.

(6)  Framing:   Openings must be square, in plane, and free of obstructions.  Sash and frames must be structurally adequate to support weight of unit and prevent twisting stresses.  Frame deflection must not exceed L/175 or less, depending upon size (AAMA).

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