What is Insulbrick primarily made of?

Insulbrick is primarily made of a fiberboard asphalt siding. This type of siding consists of a core material that is made of wood fibers or other cellulose materials, which are then treated with asphalt for durability and moisture resistance. The combination of these materials allows Insulbrick to provide both insulation and exterior protection, making it effective for use in various climates.

The design of Insulbrick includes a textured finish that mimics the appearance of brick, providing aesthetic appeal while also contributing to its insulating properties. This makes it a popular choice for homeowners looking for an appealing and functional siding option.

Understanding the composition of Insulbrick is important for home inspectors as it helps in evaluating the material's performance, potential issues such as moisture intrusion, and appropriate maintenance practices. Recognizing that it is a fiberboard asphalt siding also aids in differentiating it from other materials, such as concrete-based products or metals, simplifying the inspection process for assessing the home's exterior.