Infill Solutions: Infill Panels & Walling

Our most economical framing method is our infill solutions. It is constructed from the floor to soffit of the primary structural frame to ‘infill’ the external wall zone.

Overview of the Infill Walling System

Metsec SFS infill walling forms a secondary structure which is fixed between the primary super structure at floor and soffit. It is generally positioned at the slab edge allowing insulation and external finishes to be installed continuously outside the main structural frame.

Parapets and Downstands

Parapets and downstands can readily be formed with SFS using Metsec’s cantilever posts, which can be incorporated within the Metsec framing. These posts can also be used to break up the span of wide openings and also allow the formation of ribbon windows.

Compound Sections

Where it is necessary to use sections with a higher capacity, single sections can be fixed together to form compound sections. This can be done for jamb, cill and lintel sections.

Zed Bars (Z402)

40 x 40 x 40 x 2mm zed bars can be provided in 2mm material and 600mm length. Zed bars are commonly used where there is not sufficient bearing at the head or base of the SFS panel.

voestalpine Metsec Slotted Head Track

voestalpine Metsec’s patented slotted head track has been developed to allow for the deflection in the primary structural frame without applying any vertical load into the studs. The studs are screw fixed to the slotted head track through pre-formed slots in the track.

Key advantages over alternative systems are:

Quicker and easier to install than conventional deflection brackets
Simpler and faster to install than traditional masonry infill
Fewer components on site – less components to store, lose or work with
Fix and forget system – no concerns about missing brackets
Visible centre line indent indicates fixing location
Vertical slots at 25mm centres allow for flexibility of stud positions

For more information visit our downloads page which has access to our SFS Infill Installation Manual or download the file at the bottom of this page.

Infill Wall Sections Explained

voestalpine Metsec SFS infill solution section references are designed to be easy to read and understand at a glance. Each section type is identified by a unique reference consisting of three numerical values separated by a letter or a dash unique to the voestalpines Metsec SFS Framing Systems

Studs Sections (lipped sections)

Example stud reference – 090M12-50

090 – Refers to the section depth of 90mm (numbers ending in 0 are always lipped)
M – Refers to Metsec SFS
12 – Refers to the gauge (thickness) of the section i.e. 12 is 1.2mm thick
50 – Refers to the width or section flange of 50mm

Track Sections (un-lipped sections)

Example stud reference – 094M16-70S

094 – Refers to the section depth of 94mm (numbers ending in 4 or 6 are always un-lipped)
M – Refers to Metsec SFS
16 – Refers to the gauge (thickness) of the section i.e. 16 is 1.6mm thick
70 – Refers to the width or section flange of 70mm
S – If present at the end of the section reference it means the section is slotted.

Colour Coding Explained

voestalpine Metsec SFS prints stud or joist sections and track sections with references that are designed to be easy to read and understand at a glance. voestalpine Metsec prints the Metsec name down both flanges for the thinner thicknesses of section and these are colour coded as follows:

BLACK = 1.2mm or 1.3mm thickness
RED = 1.4mm thickness
GREEN = 1.6mm thickness
ORANGE = 1.8mm thickness
BLUE = 2.0mm thickness

On our drawings any sections greater than 2.0mm or that are made up of multiple sections are shown in yellow so they are highlighted on the drawings.

Slotted head track or sections thicker than 2.0mm are not colour coded but still have the “M” reference on the web.

All stud or joist sections and track sections have a string of numbers and letters printed down the back web along with our CE mark. One of the string of characters will start with a M and have two numbers alter it e.g. M12 or M20. This denotes the thickness of the section i.e. M12 = 1.2mm thick section.

SFS Wall Performance Data

The need for full SFS system performance data is of the upmost importance.

Coupled with the need for optimal performance, confidence in that performance is paramount and being able to have data available to support the whole SFS system is an ever increasing requirement.

Making performance data accessible

See how Metsec SFS systems will perform in different applications with a full range of insulation and plaster boards. We give you access to a full suite of performance and testing data so you can be confident in your SFS construction.

Fire performance data is available with all three major manufacturers of plasterboard – BG, Knauf & Siniat as part of the Metsec SFS systems offer.

Fire performance solutions available with 2 types of sheathing board, RCM Y-Wall (Calcium Silicate) and Euroform Versaliner (MGO).

Performance data is available with 2 types of insulation, both can be used above 18m, Knauf Rocksilk Rainscreen and Rockwool Duoslab.

Tested both load bearing walls and also non-load bearing for infill solutions which are more economical are available in the Metsec SFS systems.

We now have performance data for over 200 wall and floor solution SFS construction combinations.

Full performance data

Each and every one of our systems is tested or assessed for fire safety by the UK’s leading independent centre – the BRE. We also calculate acoustic and thermal data for complete peace of mind.

For more information on this please download our SFS Specification Manual.