Pre-Inspection Process for Commercial Roofing Systems

Scope of the Inspection Standards of Practice When entering into an agreement to inspect a property, it’s common for the inspector to include in the agreement the Standards of Practice that will form the basis for his inspection. Members of CCPIA perform commercial building inspections according to the International Standards of Practice for Inspecting Commercial…

The Thermodynamics of Thermal Insulation

Terms You Should Know Thermal conductivity Thermal conductivity is the K-value. It is the measure of a material’s ability to conduct heat. A low K-value indicates that the material does not allow heat energy to easily pass through. According to the National Roofing Contractors Association (NRCA), a material must have a K-value of 0.5 or…

Types of Low-Slope Roof Thermal Insulation

The insulation used in low-slope roof assemblies typically falls into one of the four categories: rigid board insulation; dual-purpose structural deck and insulating planks; lightweight insulating concrete (LWIC); or sprayed polyurethane foam (SPF). Rigid Board Insulation Rigid board insulation is the most common type of insulation used in low-slope commercial roofing. It is made from…