Examples of Roof Insulation
Click on an image to enlarge.
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- EPDM over DensDeck Prime over Isocyanurate insulation on the steel deck.
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- Fiberboard-wet. Ballasted EPDM over soaking wet fiberboard.
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- Fiberboard. Under the asphalt/gravel is dry fiberboard. Note the difference between wet and dry.
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- Fiberboard-wet 2. Dragging the insulation across the EPDM leaves a trail of water.
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- Bald asphalt over fiberglass insulation.
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- Foam Glass. When wet smells like rotten egs.
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- ISO-Fiberglass. Rock ballast EPDM (loose laid), Isocyanurate (loose laid), asphalt/gravel, fiberglass, set in hot asphalt on concrete deck.
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- EPDM over isocyanurate insulation over asphalt roof on a gypsum deck.
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- Reinforced EPDM with 2″ of isocyanurate insulation.
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- Expanded Polystyrene or EPS (white) over perlite (gray/brown) insulation. EPS should not be next to a stell deck as it can spread fire.
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- EPDM over Phenolic Foam insulation on a steel deck. The rust-colored Phenolic causes steel deck to rust when wet – big lawsuits generated.
