The attic is the space found between the ceiling of the top floor of the home & the slanted roof. Attics are awkwardly spaced structures that hold support wood for the roof. Often, they are neglected structures, dirty & very hard to access. Mold development in the attic occurs often because the heat that rises from the floors of a home evaporate into the attic, from which they have nowhere to go. The humid moisture created as a result of this leads to the development of mold spores that grow & multiply rapidly. The warm air that is trapped under the roof will cause condensation to build up on framing, deck surfaces, roofing nails causing mold to form a ‘home’ there & grow. Some homes have multiple attics and the one just above a bedroom/bathroom is more susceptible to forming black mold. Below are some reasons why black mold could grow in your attic.
i) Air from your dryer, kitchen, or bathroom vents is responsible for condensation & mold build up in your attic. This occurs frequently in colder weather such as during winter. Air from exhaust fans also causes mold to build in the attic.
ii) Improperly fitted insulation on the ceiling or skylight can cause mold contamination in the attic.
iii) Air heating system ducts that are not insulated waste energy & increase chances of mold build up in the attic.
iv) Open vents into the attic can discharge moisture & saturated gases into the attic.
v) A leaking roof can allow water, moisture, leaves, dirt & lots more nasty substances from the environment into your attic that can make it very dirty, smell bad & build up mold. If this happens, call a roofing expert immediately to repair any leaks on the roof; this occurs most commonly when the roof tiles are broken.
vi) Hot water heaters & furnaces generate lots of heat. If installed nearby a poorly ventilated attic, moisture from these devices could condensate the attic & force mold to build.
vii) Poor or no insulation of the attic floor will cause heat & moisture to rise during warm weather. When it turns to winter, the mix of cold & warm moisture will stir rapid mold growth.
You can save money on your energy bills each month by insulating your home. Insulation is easy to install & more affordable than most people think. This video is courtesy of Owens Corning and shows you how to install insulation in your home. The insulation should cover the tops of exterior walls but should not block the flow of air from socket vents. Also remember to keep insulation away at least 3 inches from any heat-producing devices i.e. metal chimneys, lighting, etc. If these devices are covered by insulation, they could potentially overheat & catch fire.