A high-quality carport offers a lot of benefits, both structurally and financially, but it turns out that it may also provide an ecological benefits. This is not simply about having a smaller structure that requires fewer materials to construct, but there are some air quality issues that could actually affect your entire home.
There is a concern among some builders that enclosed garages almost never have adequate ventilation, which could potentially lead to the buildup of noxious gases. In fact, a study published by Environmental Research in 2007 suggested that an attached garage could see elevated concentrations of volatile organic compounds (VOCs) that could find their way into the residence.
Indoor pollution issues are something that shouldn’t be taken lightly since it could have adverse affects on the health of everyone in the house. The study went on to say that gasoline-related VOCs, which includes the known carcinogen benzene, were found at their highest levels from garage sources.
Another study, conducted by the University of Alaska Fairbanks in 2005, also reported that homes with attached garages in Alaska had heightened levels of toluene and benzene spreading through the home. There the problems were more pronounced during the summer, but they also found that homes with carports or detached garages had no traceable levels of those pollutants, even in the summertime.
Of course, none of this is here to suggest that there’s something wrong with having an attached garage or enclosed structure. There are obviously a lot of benefits these types of garages, but you need to be aware that indoor pollution is a real hazard. If you opt for an enclosed garage that is attached to the house, you need to make sure that it is properly ventilated so the VOCs won’t migrate into your home.
Steel carports provide protection from harsh weather conditions, penetrating sunlight, and debris that might fall from any nearby trees, but they also let you put some distance between your home and the possibility of unwanted pollutants getting into your air space. So not only are they usually the more affordable solution, they just might be the more eco-friendly one as well.