Sub-Floor Fans

Suggestion I: The installation of the EF10-4 sub-floor ventilation system is done by the removal of a terracotta vent or by physically extracting 2 bricks with a diamond blade. The minimum cut-out size is 234 x 175. The extraction rate of damp air/minute is 5,500 litres per minute. The damp air is extracted directly from the sub-floor area using wall mounted fans at 27dba. Operated by a 12 volt power supply as shown in the picture below. Colour availability is whi…

So why would sub-floor ventilation be the most important? According to research done in sub-floor ventilation (BRANZ) a square metre of ground can yield up to 400mls of moisture in a 24hour period. So where does the moisture dissipate if sub-floor ventilation is inadequate? Humidity from the ground is absorbed into timber floor structures, which creates floors to buckle and bounce, longevity of timber structures is greatly decreased (dry-rot). What about termites? Termites are drawn to moistu…

These are mould and mildew propagation which will affect our respiratory tract. Before this become apparent a tell tale sign is the presence of a musty smell inside the living area. This is very common in dwellings that are built on piers when the subfloor ventilation is inadequate. In a dwelling built on a slab this will occur where internal humidity is entrapped, which is caused by ironing, cooking, unducted clothes dryers, showering, bathing and living in close proximity to the ocean. The so…

Why Consider Envirofan Subfloor Ventilation Systems From All Other Systems The market leader of sub-floor ventilation fans was Solarfan who had rigorous testing carried out by Unisearch in the 1970's. This accreditation was a fundamental testing process which substantiated Solarfan’s domination, however later on it gave Envirofan the opportunity to refine the product even further in quality, since 2001. What sets Envirofan apart from the rest, is the unique design of the EF10-4 subfloor ventila…

An exodus of Australian manufacturing companies has gone overseas. One of the obvious reasons is to increase profits by cheaper labour costs. Envirofan manufacturing believes that Australian jobs should be protected. A product made in and distributed from China doesn’t pay an Aussie workers mortgage. Envirofan is involved in the sale and distribution of subfloor ventilation and roof ventilation systems which are made in Australia and it is good to know that when fellow Australians support us w…

The market leader of sub-floor ventilation fans, Solarfan, had rigorous testing carried out by Unisearch in the 1970's. Unisearch was a very intensive testing and research facility, contracted to research and examine commercial products. Consulting and expert opinion from UNSW is now known as UNSW Consulting Unisearch, a division of NewSouth Global. This accreditation was a fundamental testing process which a lot of ventilation companies don't comply to. So how credible are their products? Thi…

Since the emergence of fan ventilation for sub-floor (basement) areas, it really isn't just an option, it’s a requirement. Pest control, pest management industry stresses the importance of ‘effective’ cross-flow ventilation (adequate ventilation) in sub-floor areas in line with the 'Termite Inspection Report' in accordance with AS 3660. The other fact is that when you place an anemometer (a free spinning wind speed apparatus) against a wire mesh vent the impeller will move clockwise for a time …

When it comes to new or old buildings now these two styles of construction can have the best of both worlds when it comes to effective sub-floor ventilation. This is intrinsically important when it comes to your family’s health and the health of your home. Sub-floor damp and moulds can have a very adverse effect on your family’s health and home. If left unchecked it can cause respiratory problems to our loved ones and to our homes structure. Excessive sub-floor dampness will affect timbers floo…