Imperial I+
windows with high thermal insulation parameters

  • the system is designed for windows, doors and shop windows with high thermal insulation parameters,
  • high thermal insulation power was achieved by applying special thermal inserts slid between thermal separators and around the glass pane,
  • large number of shapes in the system guarantees obtaining desired appearance and structural strength,
  • option of installing windows in facade systems,
  • glazing strips available in rectangular and circular variant,
  • shapes of profiles suitable for installation of various peripheral hardware, including hidden hinges and uPVC hardware,
  • a wide range of glazing allows using all types of single and double cavity, acoustic and anti-burglary glass panes,
  • profile drainage in two variants: traditional and hidden,
  • option of bending profiles (detailed specification of profiles and detailed technical parameters of profile bending process are available in the customer,
  • the system is desiged for use in residential and public buildings, and also allows designing modern window solutions in multiple variants,
  • design of systems IP i, IP i+ is based on proven, extensive and recognized base system Imperial,
  • a wide range of colours available – RAL palette (Qualicoat 1518), structural colours, Aliplast Wood Colour Effect (Qualanod PL-0001), anodized (Qualanod 1808), bi-colour.
Imperial I Series

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Technical specification

SystemMaterialDepth of frameDepth of leafGlazing rangeType of windows
IPaluminium/ polyamid2916in22932in0532in-2164insingle and double windows, outside opening, inside opening


Design Pressure (DP)Structural Pressure (STP)U-FactorSHGC (Solar Heat Gain Coefficient)Visible TransmittanceCondensation Resistance
Imperial Tilt Turn Window+45.1psf+67.7psffrom 0.24from 0.12from 0.1055
Imperial Fixed Window+75.19psf+112.78psffrom 0.16from 0.13from 0.1549

Download full Imperial Series Tilt & Turn Window Certificate

AAMA/WDMA/CSA 101/I.S.2/A440-11,
AAMA/WDMA/CSA 101/I.S.2/A440-17,


Download the PDF

file and save it to a disk to explore the details of the American Systems Windows later.