Integral 88

Inward opening window

•  Characteristics

Aluminium-clad wooden window Integral is a very modern construction designed for buildings with original, sophisticated architecture. The sash profile is not visible from the outside, as it’s fully covered with frame’s cladding. Integral is distinguished by compact, minimalistic construction - the glass line is always aligned, regardless if it’s openable or fixed unit. Slowinscy Company is one of the few window manufacturers in Poland that offers this type of joinery. Integral windows are manufactured in two variants of timber core thickness – 68mm and 88mm and are available in double or triple glazing. Very good thermal parameters have been achieved thanks to lowering the height of the frame and sash, resulting in increasing the surface of the glass. Glass’ surface in Integral window is 15% bigger in relation to standard aluminium-clad wooden or wooden only window.


Combined height of the frame-sash compound is only 101mm!!


Integral system can be used in passive house constructions where the value of Uw = 0.8 W/m2K is sufficient.

•  Construction

Single-frame, frame and sash cross-section: 88 x 56 mm, 88 x 76 mm.
If technically possible, we can provide any shape and size of the window.

•  Material

Three-layer glued scantling, homogeneous or combined in length. Wood types: pine, mahogany, meranti, sapeli, oak.

•  Sound insulation

Sound reduction for the standard unit Rw = 31 dB.
Glazing unit with improved sound absorption (option) for
Rw = 34-42 dB, depending on a selected glazing unit.

•  Heat permeability

The heat transfer coefficient for the window with the test dimensions Uw=0.8 W/m2K, using 88mm thick timber profiles.

•  Glazing

Triple-glazing, twin-chamber (4-18Ar-4-18Ar-4), 48mm unit, the heat transfer coefficient Ug = 0.5 W / m2K (EN-PN 674), inter-pane cavity filled with argon.

Ornamental glass, safe, with sun protection properties - option.

The maximum thickness of the double paned unit is 54mm.

Warm edge spacer (grey) - standard.

•  Window muntins

Not available in this system.

•  Fittings

Roto NT locking fittings with micro-ventilation and anti-burglary catch.

Wrong handle position blockade - option.

Anti-burglary fittings - option.

•  How to open

R (side hung windows), U (tilt windows), RU (tilt & turn windows).

•  Colour

Transparent paints according to Sigma Coatings colour chart.
Opaque paints according to RAL and NCS colour charts.
4 coating system, impregnation, primer, interlayer, topcoat.

•  Gaskets

Undercut, press-in, with TPE closed profile by Deventer or Primo. Gasket colors matched to the color of woodwork.

Glazing gaskets: double-sided, press-in, 3mm thick, black by Gutmann

•  Aluminum cladding

Aluminum cladding cut 45° mechanically gripped or welded.
Colors according to RAL color cart. Cladding supplier Gutmann.

•  Handles

Hoppe Secustic Atlanta handle in white, silver, olive, titanium.

Key-lockable handle in colors as above - option.

Handle with a button in colors as above - option.

•  Warranty

Słowińscy Company offers a 5-year warranty onlabor and materials used. The five-year warrantydoes not include paint coatings (3 years for opaque paints, and 2 years for transparent paints). Detailed information in general sales conditions by Słowińscy sp.j.