Home Owners BrochureDownload
Does steel framing conduct sound through inter-tenancy walls?
Sound vibrations are conducted through any wall with solid material. Steel framing is very slightly better at acoustic insulation than timber framing, due to the flange flexibility, but the differences are only 1 or 2 dB and not usually noticeable.
Can steel framing be fire rated?
Yes they can. Fire resistant linings are applied and can deliver whatever magnitude of fire resistance is required.
Steel framing has some significant advantages over timber framed construction. The first is that steel is non combustible, so when fire burns through the linings it will not spread within the framing cavity, whereas this is a major cause of hidden fire spread in timber framing. Electrical faults are the most common causes of fires in wall cavities but they cannot ignite a steel frame.
Given these advantages, it is not surprising that fire case histories show steel houses perform very well in house fires, with little or no damage to the framing structure.
How do I attach wall linings to the frame?
Plasterboard linings are screwed either horizontally or vertically into the steel frame using self-drilling screws and a suitable wallboard adhesive. It's already common practice to fix ceiling linings to steel ceiling battens so builders have no problem changing to steel frames.
Are steel framed homes dangerous when lightning strikes?
No. The steel frame offers better protection than other construction materials because it is a good conductor and provides many paths to earth directly to the ground. Steel creates a positive earth and the electrical energy of the lightning is conducted straight to the ground. All steel frames are required to be earthed so the lightning has less effect because it is not released destructively within the building as with other materials
Are steel frames safe when exposed to a live electric wire?
Steel frames are safe because they are earthed. If the frame is exposed to a live wire the earthing creates a short and trips the residual current safety switch and prevents the chance of electrocution so there is little chance of you touching anything live.
Does steel framing interfere with mobile phones or TV signals?
No. Electro magnetic waves pass through the spaces between studs, which allow the use of radios, phones, and TV’s in a steel frame home without interference.
Do steel frames have a warranty?
Yes. We use AXXIS® steel for framing which is produced by New Zealand Steel. New Zealand Steel provides a 50 year durability statement to meet the requirements of the NZ BC B2 Durability.
Will steel frames rust?
No, not in normal use if it is completely enclosed and protected from the weather. Steel frames are galvanised which protects themagainst corrosion. Asframing is used in what is termed a closed environment, it is not normally subject to severe corrosion from marine salts. Where there are cut edges or holes, the zinc coating adjacent to the edge or hole protects the cut area. Details are given in the durability statements from New Zealand Steel that supports the AXXIS® steel for framing.
How do you fix architraves and skirtings to steel frames?
Generally a combination of small self-drilling screws and adhesive is used, which unlike nails will never spring out.
Are more trade skills required to work with steel framing?
Building and finishing with steel frames and most trade skills are the same or very similar to timber. Builders that have worked with timber all their lives and changed to steel framing have been surprised how easy it is to work with steel. Steel framing is now an integral part of apprentice carpenter training so the next generation of carpenters will be trained from the start of their careers in both materials.
Can I alter a steel-framed home at a later date?
Yes. Additions are made in the same way as any other building system but the original steel structure will be straight and true regardless of its age, making the job of matching up the addition much easier.
Are there any benefits to the environment when using steel framing?
Yes. Steel is an environmentally friendly alternative to timber. There is little waste when using steel framing materials because all metal is engineered and cut to length in the factory.
Steel is 100% recyclable and can be used time again and again without losing its properties.
How are different external claddings fixed?
Generally screws are used instead of nails. Brick and stone veneers are very popular and use standard brick ties screwed to the metal framing, plaster systems can also be used as well as weatherboard and fiber cement.