Mold develops in attics due to moisture, which is in turn caused by poor ventilation in the roof as well as in the attic. If not handled properly, it can cause wood rot and structural damage. And if you have a HVAC system installed in the attic, there are chances that you are going to breathe in the spores of mold that will be spread around the house by the system. However, taking care of mold isn't that hard; all you need to do is clear the existing mold and improve the ventilation.
How Mold Develops In The Attic
When you heat your home, the warm air moves up towards the roof. If there is poor ventilation in the attic and the roof, the air will become trapped and it will start to condense under the roof boards. Condensation then leads to formation of water and moisture, which is all that mold needs to start growing.
How You Can Get Rid Of The Mold
Removing mold from the roof boards in the attic can be quite expensive if the area where the mold has grown is not easily accessible. It means that you will have to hire a specialist for the job. However, if the area is accessible, you can try to remove the mold yourself.
First of all, begin by wearing protective equipment. They include safety goggles, rubber gloves, N100 or N95 respirator mask, long sleeves and long pants. Then scrub the mold using a stiff brush, household detergent and hot water. Collect the cleaning solution with a sponge and allow the area to dry.
How You Can Improve Ventilation
To improve ventilation, you need to add vent openings on your roof. For the project, you require nails, wood planks, a hammer, a utility knife, a reciprocating saw and vent openings.
First, lay wood planks across the rafters so that you can avoid stepping through the ceiling. Then mark the areas where you want to install the vents; in between the rafters, and 18 inches from the peak of the roof, hammer your nails up through the roof sheathing and shingles. The nails act as marks where you will place the vents. On the roof, locate your marks and cut the shingles using your knife to make a hole; the hole should be ½ inch larger than your vent openings.
Then cut a hole in the roof sheathing using your saw. Roof sheathing is a panel that holds the shingles and it should be visible after you have cut the shingles. Also note that the hole you are going to make in the sheathing should be of the same size as the hole you made in the shingles.
Since some part of the vent opening will go under the shingles, slide a pry bar under the shingles (the shingles that surround the hole) to separate the sealing adhesive. Then slide your vent into place and apply roofing cement where the vent meets the shingles. After that, you are through and mold should not be a problem anymore in your attic. For more information or answers, contact a specialist in roof repairs.