Attic Decontamination

Mold can grow in damp environments with stagnant air, so the attic can act as a perfect incubator if it is not healthy. Common causes include:

1. Excessive moisture: Excessive moisture is one of the most important factors for mold growth in the attic. Mold spores are everywhere, both in the air outside the home and inside. If the air is too humid, the spores can cling to building materials and form an outbreak.
2. Water leaks or moisture sources: Water leaks, such as water leaks from the roof, can cause mold growth in the home. A bathroom fan outlet in the soffits or a kitchen hood outlet too close to a soffit are also common causes of mold growth.
3. Insufficient ventilation: Stagnant air can contribute to excessive moisture in the attic, creating an environment that is conducive to mold growth.
4. Building materials: Certain building materials such as wood, gypsum and sometimes even insulation can be sources of food for mold.
5. Condensation: Condensation can occur on roof boards. This is often the result of rapid heat loss that causes moisture in the attic. On contact with a cold surface, the moisture can turn into water droplets that will feed mold spores and ultimately cause your attic mold problem.

It is important to control moisture to prevent mold growth in the attic. It may also be necessary to treat water leaks and provide adequate ventilation to prevent mold growth.

The basic steps to decontaminate mold in an attic are as follows:

1. Assessing the extent of mold contamination in the attic;
2. Use of personal protective equipment (PPE) to prevent exposure to mold spores;
3. Implementing measures to prevent the spread of mould spores from the attic to healthy areas of the house (negative pressurization of work areas);
4. Removal of all mould-contaminated materials if present (e.g., removal of existing insulation);
5. Use of a HEPA filtered fan to reduce the mold spore count in the attic air;
6. Use of an appropriate fungicide to kill any remaining spores.

However, it is important to note that the process of decontaminating mold in an attic can vary depending on the extent of the contamination and the specific conditions of the attic. It is recommended that experienced professionals be called in for safe and effective decontamination. Call 514-400-9946 and one of our decontamination specialists will be happy to answer your questions.

The cost of mold remediation in an attic can vary depending on several factors, including the extent of the contamination, the size of the attic, the type of contaminated materials and the complexity of the work (e.g., restricted access, etc.). In general, the average cost of mold remediation work in an attic varies from $1000 to $5000, then add to that the cost of correcting the causes of the outbreak of contamination in the attic. It is recommended to call on qualified professionals to evaluate the situation and provide an accurate estimate based on specific needs. Request your free evaluation by contacting one of our experts at 514-400-9946.

Yes, the humidity in the home can certainly have an effect on mold in the attic. Mold needs moisture to grow, so if the humidity in the home is high, it can promote mold growth in the attic. Therefore, it is important to maintain proper humidity levels in the home and to regularly monitor the attic for signs of mold or deterioration of building materials. In the summer, it is advisable to keep the relative humidity level below 50% and in the winter, it is important to calibrate the relative humidity level according to the outside night temperature. We invite you to take a few hygrometers placed in strategic locations in the house (e.g.: master bedroom, kitchen, bathroom and basement) to monitor the relative humidity level in the house, then refer to the following table:

To learn more about this subject, contact one of our attic mold decontamination specialists in the Longueuil, Montreal or Laval area at 514-400-9946 now!