Tag: degradation

Potential Issues with Using Polyurethane Foam for Building Insulation

by magroupllc, posted in Building Materials, Coefficient of Thermal Expansion, EPS, Expansion, Foam, Forensic Chemistry, Hazards, Insulation, Polyurethane, Shrinkage, SPF, XPS

Polyurethane foam is extensively and increasingly being used as insulation and vapor barriers in homes and buildings. There are many different types of polyurethane foam which makes it a versatile material, having a range of practical building applications. Types of foam include open cell polyurethane, closed cell polyurethane, extruded polystyrene, expanded polystyrene, spray polyurethane foam, … Continue reading Potential Issues with Using Polyurethane Foam for Building Insulation

Case Study: Staining of Exterior Marble Tile Caused by Cold Applied Asphaltic Waterproofing Membrane: Solved by FTIR Analysis

by magroupllc, posted in Case Studies, Exposure Testing, FTIR, SEM

In 2013, marble tiles were installed as pedestrian pavers on the exterior plaza of a new condominium built near the Atlantic coast in Florida. After three years of being in service, the marble tiles started exhibiting orangish brown surface staining that had a similar appearance to iron oxide staining. Replacement of the marble tiles would … Continue reading Case Study: Staining of Exterior Marble Tile Caused by Cold Applied Asphaltic Waterproofing Membrane: Solved by FTIR Analysis