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Soffits overview

Different balcony structures have different drainage requirements. Concrete balconies, for example, tend to be treated like a flat roof and are normally finished with a waterproof membrane, drainage outlet or overflow pipe. When using a metal balcony structure, which will often have a permeable deck, drainage options are interrelated to the use of fascias and soffits.

Fascia boards ensure a neat finish to a residential balcony and protect exposed edges from weathering. Soffit boards are fitted to the underside of the fascia to complete the clean-edged look and provide a weatherproofing seal. Typically, balcony fascias and soffits are manufactured from polyester powder coated aluminium for a durable, low maintenance solution.

Typical Soffit Options

PPC aluminium sheet:

This is the most popular option for balcony soffits. Usually, the fixings are concealed, and the soffit is broken up into panels 400mm wide with neat butt joints, although this can vary.

Open soffit: 

This is a cost saving option which is not as neat in appearance and is only suitable for free draining balconies. With open soffits, the balcony structure can be left as mill finish, or powder coated in a darker colour to make it less noticeable.

Decking soffit:

Some clients choose to clad the underside of the balcony with decking to match the top surface. This would normally be in a free draining situation where water falls between the deck boards.

Deck finishes

Deck finishes need to consider both the functional use and also the aesthetic appearance, as seen from inside the apartment...

Deck Finishes

Balcony Structure

There are three parts to the main balcony structure. Firstly, the Cassette® balconies ‘skeleton’, this in essence, is a chassis...

Soffits