SOLERA® L & R5 Installation Guidelines


SOLERA® L insulated translucent glazing units (TGUs) are high performance sealed light diffusing insulating glazing units that consist of a minimum of two lites of glass, plus spacer/sealant as well as interior components that diffuse light and insulate. Units are totally sealed. [Note that in certain circumstances, stainless steel pressure equalizing capillary tubes may be installed to accommodate changes in altitude between plant and job site and must be crimped before installation. (See item 16).]

The following guidelines have been developed for specification writers, frame manufacturers and
installers to convey the installation requirements of the SOLERA® unit which will ensure satisfactory, long term performance. It is recommended that this document be read in conjunction with the SOLERA® L Warranty Document, supporting SOLERA® L materials in our product binder and industry standard recommended practices documented by IGMA. The user is encouraged to contact Advanced Glazings Ltd. directly for advice on specific glazing installations.


  1. The SOLERA® TGU is manufactured using a wide range of architectural glass types and thicknesses.
    The glass specified for the SOLERA® TGU must be selected by the user to meet project-specific
    objectives as well as national and local building codes.
  2. Frame and sash must accommodate the thickness of the SOLERA® TGU. Overall thickness is a
    function of glass lite thickness and spacer thickness, and these must be specified by the user at
    order time.
  3. Installer must ensure that framing systems are designed to meet project specific objectives as well
    as national and local building codes.
  4. Glazing installation must ensure that the “intra-frame cavity” is drained and vented to the
    outside . Frame vent holes should meet IGMA’s recommended minimum size requirements.
  5. Manufacturer’s labeling identifies the required orientation for installation (Exterior Lite/Top).
  6. Interior and exterior lites must be supported by setting blocks of appropriate size at quarter
    points, and spacers must be installed on vertical edges to prevent direct contact between glass
    and frame. Setting blocks and spacers must be adequate to prevent direct contact between glass
    and frame in all circumstances. Installer must ensure that setting blocks are compatible with the
    sealant used on SOLERA® units.
  7. The glazing rebate (i.e. clearance between frame and TGU) must be clear of any protrusion except
    for glass support setting blocks or spacer shims. The setting blocks should be designed or
    positioned to allow water passage to the weep or vent holes
  8. The glazing stops must provide plane, continuous and uniform supports for the surfaces of the
  9. Frame joints must be adequately sealed to prevent water and air infiltration.
  10. Under no circumstances should the edge of the TGU be allowed to sit in water.
  11. Edge clamping pressure must be sufficient to achieve an air and water tight seal but must not
    exceed 10 lbs. per linear inch to avoid risk of unit damage.
  12. Frame members must be structurally designed to withstand the wind loads and dead loads
    transferred by the SOLERA® TGU. Each frame member should be stiff enough not to deflect more
    than the lesser of length/175 or 3/4 “ at full design load. All edges of the sealed unit must be
    supported to resist wind and other loads. The minimum bite on the glass edge should be 13mm
    (½”) to firmly support the insulating glass unit when exposed to static and dynamic loads.
  13. The height of glass stops may vary depending on the area of the TGU, external forces and
    functions. A stop height of approximately 19mm (3/4 inch) is commonly used. The minimum
    bite on the glass edge should be 13mm (½”) to firmly support the insulating glass unit when
    exposed to static and dynamic loads.
  14. The use of structurally adequate thermally broken frames is recommended with the SOLERA® TGU
    to improve energy performance and minimize condensation on interior surfaces in cold weather.
    The thermal stress on the TGU is also reduced when thermally broken frames are used.
  15. Glazing clearances must be sufficient to accommodate manufacturing tolerances in the unit size
    and overall thickness and to ensure that the unit “floats” within the retaining system (reference
    drawing 300-3002-12).
  16. If units are equipped with breather tubes (also known as capillary tubes), the tubes must be
    closed off with a dab of sealant once the units have been received at the job site. If the capillary
    tube is not properly closed off, the tube can potentially cause excess moisture to enter the unit
    leading to reduced longevity of the unit. DO NOT TWIST, PULL OUT OR CUT OUT this tube
    from unit.

For more information please contact Technical Support at 888-GLAZING (888-452-0464).