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2. Spray foam - Wikipedia

   en.wikipedia.org/wiki/Spray_foam

   Spray foam insulation or spray polyurethane foam (SPF) is an alternative to traditional building insulation such as fiberglass. A two-component mixture composed of isocyanate and polyol resin comes together at the tip of a gun, and forms an expanding foam that is sprayed onto roof tiles, concrete slabs, into wall cavities, or through holes ...

3. Building insulation material - Wikipedia

   en.wikipedia.org/wiki/Building_insulation_material

   Sealection 500 spray foam R-3.8 (RSI-0.67) per inch. [12] a water-blown low density spray polyurethane foam that uses water in a chemical reaction to create carbon dioxide and steam which expands the foam. Flame spread is 21 and smoke developed is 217 which makes it a Class I material (best fire rating). Disadvantages: Is an Isocyanate.

4. Domestic roof construction - Wikipedia

   en.wikipedia.org/wiki/Domestic_roof_construction

   A more recent design is the installation of a roof deck with foil-backed foam along with a second deck that is air-gapped away from the foil-backed foam to allow air to flow vertically to a ventilation outlet at the peak of the roof—it is a double-deck design with an air gap. This design improves efficiency. [13]

5. Holmes on Homes - Wikipedia

   en.wikipedia.org/wiki/Holmes_on_Homes

   New home construction with improper vapor barrier between the garage and the bedroom above. The team uses spray-foam as insulation. 04: EP3030: Exit Wound: A walk-up stairwell is oozing water and has a dangerous tilt to it. Mike digs up the whole thing only to discover that while the brickwork is beautiful, it isn't up to code. 05: EP3031: Semi ...

6. Earth shelter - Wikipedia

   en.wikipedia.org/wiki/Earth_shelter

   There are two types of insulation used in earth shelter construction. The first is close-celled extruded polystyrene sheets. Two to three inches glued to the outside of the waterproofing is generally sufficient. The second type of insulation is a spray on foam (e.g. polyurethane solid foam insulation). This works very well where the structure's ...

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