Windows / French Windows

SAPA 1086

Block Window

High insulated inward opening block window


Our insulated block window system has a profile depth of 86 mm and uses 42 mm wide glass fibre reinforced polyamide strips. The design of the inside gasket and the insulating strip optimises the insulation of the profiles. The frame and cross-bar profiles are available in different widths. The window can be easily combined with our façade systems 4150 and 3086.

This product is made of Hydro CIRCAL® recycled aluminum. Read more here

SAPA 1086 EN

Product benefits


  • Single window or element combining an opening and a fixed window.
  • Fittings. Side, bottom, top-hung or tilt and turn.

More information

Specifications & EPD

Fitting functions

Tilt and turn, inward opening


Ventilation, bottom-hung

Open, side-hung

Siegenia ALU 5200-TBT closing fittings
16126 handle
16131 lockable handle

Side-hung, inward opening


Open, side-hung   

Siegenia ALU 5200-D closing fittings
16126 handle
16131 lockable handle

Bottom-hung, inward opening


Open, bottom-hung

Siegenia ALU 5200-K or ALU 5200-K/2V closing fittings
16126 handle
16131 lockable handle

Top-hung, inward opening


Open, top-hung  

Siegenia ALU 5200-K closing fittings
16126 handle
16131 lockable handle


Aluminium handle

Art nr: 16126

Lockable aluminium handle

Art nr: 16131

Window location in structure

For the entire window structure to meet the energy saving requirements and ensure good comfort it is necessary to install the window in the warm part of the wall. This means that it should be installed as deep into the wall as possible, which has a number of advantages.

It creates good conditions for appropriate fixing and a well functioning joint. The risk of condensation is reduced due to a higher surface temperature. The joint between the frame profile and the wall shall be made with two step sealing. This means that it should consist of an outer rain barrier with an underlying air channel, a mineral wool insulation layer and an inner diffusion sealing joint.

Connections, see Elevations and details.


Unprotected glazed surfaces that can be reached by persons shall be designed so as to limit the risk of injury. Such glazed surfaces shall be dimensioned so as to withstand the dynamic influence of a person. Applicable standards and requirements should be taken into account.

Glass thickness 22-32 mm
Block window 1086

The illustration shows the different functional dimensions commonly used by the window industry and established by the MTK. The gaskets are made of EPDM rubber and are available in several versions

U values for windows

Formula for calculating the total U value of a window, taking into account the glazing unit, the share of profiles and an edge zone effect linear factor.

Uw = ( Ag * Ug + Af * Uf + Ig * ψg )  /  ( Ag + Af )

Elevations And Details

A1086-1032 717274
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A1086-1033 12371727374
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A1086-1034 71727475
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Fixing Principles

Fixing principles

Windows must be fixed to a stable and suitable wall structure. The choice of fixing method depends on the wall type. The number and location of fixing points depends on the size of the window.

Fixing of frame with
twist anchor

Fixing of frame with
adjustable frame bushing

Fixing of frame with
bolt and welded plate

Projects using windows / french windows SAPA 1086

Tramway, Lund


Developer: Region Skåne / Lunds Kommun
Construction contractor: NCC Building Sweden
Metal builder: Alab Aluman AB
SAPA solutions: Facade 4150, Doorr 2086, Window 1086