What Causes Mould And Mildew Growth In Roof Trusses?
Roof trusses are common in most residential properties as they offer excellent stability and aesthetics in some cases. The type of roof truss depends on the structure in question. Moreover, while metal roof trusses are used in some cases, for most homes, wooden roof trusses are the best choice. However, these trusses are prone to the growth of mould and mildew, which can compromise their structural integrity if left unchecked. In this blog, Tamarack Lumber, a leading manufacturer of roof trusses in Ontario, explores probable causes behind the development of mould and mildew.
What Causes Mould And Mildew In Roof Trusses?
Moisture Accumulation
One of the leading causes of mould and mildew development in roof trusses is moisture. When moisture accumulates in the wood, it acts as the perfect catalyst for the growth of these unwanted elements. While moisture is the main cause, the reason behind moisture accumulation can vary, which will be explored in the subsequent sections.
Leaks On The Roof
The most probable cause of moisture accumulation in roof trusses is a roof leak. When there is even a small crack or break in the roof, it is easy for water to seep into the property and reach the roof trusses. Damaged shingles on the roof can also cause unwanted leaks. In both cases, the end result is the propagation of mould and mildew in roof trusses.
Lack Of Ventilation
A less probable cause of mould growth on a roof truss is a lack of ventilation. When there is no proper air flow, it provides an opportunity for moisture to accumulate on the roof truss, leading to the growth of mildew and harmful mould over time. This is why roof trusses are often installed along with soffit vents, ridge vents or attic fans to ensure proper airflow.
High Humidity Levels
In some regions, such as cities and towns near coastal areas, high humidity levels are inevitable. This can further accelerate the growth of mould and mildew on roof trusses. Having dehumidifiers can easily solve this issue, ensuring wooden roof trusses perform optimally for a long time. Or else, you can choose materials that are built to absorb some moisture in such areas.
In the next blog, the telltale signs of mildew and mould growth, along with steps to assess the damage, will be discussed.
Need help in selecting the right roof truss for your upcoming project? Contact us at Tamarack Lumber Inc. today. As one of the most trusted and reputable manufacturers of quality roof trusses in Ontario and surrounding areas, our experts guarantee perfection in quality and dimensions. Whether it is pre-fabricated or customized roof trusses, we can deliver them to your location in no time. Call us today at 416-798-4869 to learn more about our products and services.
