In this blog post, we’re going to clear up some of the misconceptions Kiwis seem to have about roof ventilation – as one of NZ’s most experienced ventilation experts, we’ll definitely be able to set you straight on the biggest myths people spread about it!
Roof ventilation is only needed in summer
Many people believe that they only need ventilation in the summer and not the winter – some will even cover up their vents in the winter as they believe that this will stop cold air from getting into their home. This is untrue, and covering vents in winter will only lead to moisture and mould problems. A ventilation system is a solution to year-round problems, especially if you’re worried about changes in seasonal energy efficiency.
Only houses in hot places need roof ventilation
Similarly, a common myth is that roof ventilation is only necessary in hot areas where summer or all-year-round heat is to blame for the temperature spiking in your home, and if you live in a cold area then roof ventilation will only serve to sap your precious heat. However, this isn’t the case – when it comes to keeping your home warm, insulation is far more important than ventilation. In fact, ventilation in cold climates can be used to combat moisture retention.
The more ventilation the better
Some people seem to believe that when it comes to ventilation there’s no such thing as too much of a good thing, but taking a ‘more is better’ attitude to ventilation will only cost you in the long run, as unnecessary penetrations of your roof put your home at risk of damage. A general rule used is one square foot of ventilation for every 150 square feet of attic space – if in doubt, asking a roof ventilation expert will always be the best way to decide how much ventilation you need.
Roof ventilation cools the attic
While the extra airflow brought in to the attic by ventilation will help to some degree, people are wrong in thinking that roof ventilation will cool down the attic to the temperature of the rest of their home, or even to the point of being a regularly usable room. Heat is radiated to the attic from the roof, so even with roof ventilation, the very presence of the roof is the thing that keeps attics as warm as they are.
You can’t find quality ventilation systems in New Zealand
This is the biggest myth of all! Wherever you are in New Zealand, getting a high-quality home ventilation system is as easy as spending some time on our website or talking to one of our Hometech ventilation experts. It doesn’t matter whether you’re after a ducting kit or a roof vent – NZ
homes can finally be free of moist, foul air by installing a quality ventilation system available through Hometech!