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Flat and Low Slope Roof Claims: Membranes, Seams, and Ponding
Low slope roofing systems are common on additions, garages, porches, and commercial buildings across the Midwest, and they present a different evaluation challenge than steep slope shingle roofs because the damage indicators are less visually obvious and the materials...Browse the full Resources Index
Probing TPO Seams: How Membrane Welds Are Tested
Thermoplastic polyolefin, commonly known as TPO, has become one of the most widely installed single-ply commercial roofing membranes over the past two decades, largely because its seams are heat-welded rather than adhered with liquid adhesive or covered tape,...Browse the full Resources Index
EPDM Shrinkage and Bridging Versus Storm Damage
Ethylene propylene diene monomer, generally known as EPDM, is a synthetic rubber membrane that has been used on commercial low-slope roofs for decades, valued for its flexibility, weather resistance, and relatively straightforward installation. That same flexibility,...Browse the full Resources Index
PVC Membranes and Chemical Exposure Considerations
Polyvinyl chloride, or PVC, roofing membranes share some characteristics with TPO, including heat-welded seams, but PVC’s chemical composition gives it a particular sensitivity that becomes relevant in claims involving buildings with rooftop equipment,...Browse the full Resources Index
