FerroFinestra W20. Elegant and Timeless - the bedrock of steel windows

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Sara McBride
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1 STEEL WINDOW CO. FerroFinestra W20 Steel FerroFinestra W20 Elegant and Timeless - the bedrock of steel windows This series has its origins in the Universal Range, which was introduced for the first time in 1912 by the British company The Crittall Manufacturing Co. Ltd.. The Universal range consisted of three different ranges of profiles, identical in geometry and types, but different in their depth, that classified them into large, medium and small. Depending on the dimensions of the window, the most appropriate series was selected from a static point of view. These three ranges were able to cover any type of window and in combination with special T-profiles, used as mullions and transoms, for the first time it was also possible to realize curtain walls of any size. The currently available range was revised in 1964 and re-coded as W20. The three separate ranges were condensed to one medium range, which consisted of 20 profiles able to cover the needs of new windows as well as replace those in historic buildings. Over the decades, some profiles have been abandoned and some new ones have been added, making the range more and more versatile. The depth of the profiles 32 and 37 mm, allows to manufacture various types of openings in different styles, both with single glazing or double glazing with a maximum thickness of 21 mm. Even today, this series is still chosen for a great number of restoration projects worldwide, where the superintendence asks for the original design and proportions of the relevant epoch. W20 basic The basic style of the W20 range was inspired by the SMW (Standard Metal Windows) range, which was proposed on the market immediately after the First World War In this revised version, the depth of the profiles has been increased by 7 mm to be able to accommodate glasses with higher thicknesses. Thanks to its simple and slender design, W20 s basic style expresses an unparalleled elegance, earning a permanent presence in projects looking for a minimalist design. In most cases this type of window is requested in combination with small T muntin bars of only 23 or 29 mm width to divide the glass in smaller panes, which replicate the typical industrial windows. W20 classic Originally, the W20 range had been developed for commercial and industrial applications. In recent decades, it has been rediscovered for contemporary residential architecture in milder climatic zones. The somatic marker of this classic suite is the stepped design of the flanges. This detail confers windows nice proportions and shadow lines and allows to achieve a glass pane planarity between fixed and operable windows. W20 slim A strong point of steel is the ability to be curved into any shape or geometric form and then to be transformed into a window. However, there is no quality more readily associated with steel windows and doors than narrow sightlines. For extremely slender requirements, the W20 range offers as well a slim casement line, which allows to further lighten the visual impact of the frames.

2 STEEL WINDOW CO. FerroFinestra W20 Steel Features of W20 1. Solid hot rolled steel profiles 2. Stepped leg design 3. Material thickness up to 5 mm 4. Very compact profiles with minimal depth and sightlines 5. Low emissivity double-glazing up to 21 mm 6. Choice of different glazing beads/silicone beads 7. Appropriate for heavy-duty corrosion protection

3 STEEL WINDOW CO. FerroFinestra W20 Steel W20 profile range CF 3203LF CF 3203ZF CF 3203TF CF 3203HF CF 3205LF CF 3203T CF 3203TR CF 2503TM CF 3703L CF 3703Z CF 3703T CF 3703LS CF 3705ZA CF 3705TA CF 3705ZS CF 3705TS CF 3203T2 CF 3203H CF 5505G CF 6605G

4 STEEL WINDOW CO. FerroFinestra W20 Steel Aluminium slide-in glazing beads FV F1302 A FV F1312Q A FV F1312S A Clips for glazing beads Steel screw-on glazing beads False muntins FV F1313 G FV F1316 G CF 2016T CF 2003F Gaskets CG BTAD3 Self adhesive CG BTAD Self adhesive CG V000 CG V001 CG V002 CG V003 CG V004 CG V005 CG V006 CG V007

5 STEEL WINDOW CO. FerroFinestra W20 Basic Steel Detail 1 Detail 2

6 STEEL WINDOW CO. FerroFinestra W20 Basic Steel Detail 3 Detail 4

7 STEEL WINDOW CO. FerroFinestra W20 Classic Steel 1 Detail 1 Detail 2

8 STEEL WINDOW CO. FerroFinestra W20 Classic Steel Detail 3 Detail 4 Detail 5

9 STEEL WINDOW CO. FerroFinestra W20 Slim Steel 1 Detail 1 Detail 2

10 STEEL WINDOW CO. FerroFinestra W20 Slim Steel Detail 3 Detail 4 Detail 5

11 STEEL WINDOW CO. FerroFinestra W40 Steel FerroFinestra W40 The new generation of solid steel windows The classic W40 range is an evolution of the famous W20 range developed in Produced for the first time in 1995 it consists of 17 profiles and follows the unmistakable classic design of its predecessor. The strong point of this young series, is the increased profile depth, which allows to accommodate double glazing up to a thickness of 27mm. The W40 suite proposed by OTTOSTUMM is not only used in the field of restoration, but it s also highly acclaimed in contemporary architecture for its elegant and compact sightlines, ensuring safety and comfort thanks to its excellent thermal and acoustic performance. Despite the depth of this system is only of 42 respectively 47 mm, technically it is considered a heavy duty range, which allows making large windows thanks to the extraordinary strength of steel. Any kind of inward or outward openings: sidehung, double-vent (French style), bottom-hung, top-hung or projected top-hung, horizontally and vertically pivoted windows, as well as large sliding and folding doors.

12 STEEL WINDOW CO. FerroFinestra W40 Steel Features of W40 Classic 1. Solid hot rolled steel profiles 2. Stepped leg design 3. Material thickness up to 5 mm 4. Very compact profiles with minimal depth and sightlines 5. Self-adhesive non-shrinking gaskets 6. Low emissivity double-glazing up to 27 mm 7. Choice of different glazing beads 8. Appropriate for heavy-duty corrosion protection

13 STEEL WINDOW CO. FerroFinestra W40 Steel W40 profile range CF 4203LF CF 4203TF CF 4203ZF CF 4203HF CF 4203LC CF 4203T CF 4203TR CF 4703L CF 4703Z CF 4703T CF 4703TL CF 4703ZL CF 4703ZA CF 4703TA CF 5303TA CF 5505G CF 6605G

14 STEEL WINDOW CO. FerroFinestra W40 Steel Aluminium slide-in glazing beads FV F1302 A FV F1312Q A FV F1310S A FV F1312S A FV F1602 A FV F1612Q A FV F1612S A Clips for glazing beads Steel screw-on glazing beads False muntins FV F1616 G FV F1625 G CF 2016T CF 2025T CF 2003F 16 CF 2516T CF 2525T CF 2503F Gaskets CG BTAD3 Self adhesive CG BTAD Self adhesive CG V000 CG V001 CG V002 CG V003 CG V004 CG V005 CG V006 CG V007

15 STEEL WINDOW CO. FerroFinestra W40 Steel 1 Detail 1 Detail 2

16 STEEL WINDOW CO. FerroFinestra W40 Steel Detail 3 Detail 4 Detail 5

Arte. Possibilities. Architecture for the future. Endless. Standard Profiles Nunc Et Orci Morbi Posuere. Arte Profiles Options. Arte Window Options

Arte. Possibilities. Architecture for the future. Endless. Standard Profiles Nunc Et Orci Morbi Posuere. Arte Profiles Options. Arte Window Options Possibilities Arte Endless Architecture for the future Standard Profiles Nunc Et Orci Morbi Posuere Arte Profiles Options Page 4 Arte Window Options Arte Door Options Page 13 Page 25 Table of Contents...