For decades, designers of attics and crawlspaces have used cross-ventilation to minimize potential for moisture accumulation and condensation. However, spurred by recent claims of energy savings and moisture control, unvented attics have become popular in both residential and commercial applications. While these attics can be used in many circumstances, this author believes there are reasons to use vented assemblies in many situations.
|
A focus on green building standards and more stringent code requirements has led to adoption of best practices in construction materials and methods. Among those is specifying more efficient insulation systems, air barriers, and seamless monolithic roofing assemblies. Use of closed-cell sprayed polyurethane foam (ccSPF) can help meet the stringent requirements of modern, sustainable building design.
|
Energy use, indoor air quality (IAQ), comfort, moisture intrusion, and durability are important considerations for design/construction professionals. To create a healthy, energy-efficient living space, a facility must be able to control airflow and water movement through the building envelope. The phrase “build tight, ventilate right” is used by building science experts to express the recommended building approach. One way to help address these concerns is through the use of sprayed polyurethane foam (SPF) insulation or other materials with similar properties.
|
|
|
