Home of Building Operating Management & Facility Maintenance Decisions

Insider Reports

ADA eBook
eBook 11 ADA Problem Areas in Open Offices
This eBook focuses on 11 common problem areas to help ensure open offices and other spaces comply with ADA
Sign up for eBook

Facility Maintenance Decisions

Wet Insulation Decreases a Building's R-Value, Thermal Efficiency

Moisture within building-envelope components, such as insulation, leads to premature deterioration of the material. It also decreases the R-value and thermal efficiency of the overall building. Moisture can reach building-envelope components in many ways, including condensation and direct water leaks through the building envelope.

Due to budget constraints and the out-of-sight, out-of-mind mentality many organizations possess, roofs are one of the most commonly neglected envelope components. But roofs are important for thermal efficiency and preventing moisture from entering the building.

Moisture in insulation significantly decreases the roof’s R-value. Condensation within the roof section or bulk water migrating below the membrane can be the cause of the moisture. Some roofs leak due to age and lack of maintenance, but improper or unreliable detailing typically leads to the majority of water migrating below the membrane.

posted on 7/30/2009

Article Use Policy