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2. Closed-cell PVC foamboard - Wikipedia

   en.wikipedia.org/wiki/Closed-cell_PVC_foamboard

   Typically, closed-cell PVC foamboard can be cut as easily as wood, softened and shaped by immersing in boiling water or with a standard heat gun, and painted with standard automobile paints. In addition, Closed-cell PVC foamboard is made up of polarized molecules otherwise known as dipoles. It has a very low moisture absorption.

3. Medium-density fibreboard - Wikipedia

   en.wikipedia.org/wiki/Medium-density_fibreboard

   Moisture-resistant board is typically green; Fire retardant MDF is typically red or blue; In Europe, MDF is classified for use by the standard EN 622-5, such as load-bearing for general dry or humid conditions. The light and ultralight MDF are also classified by EN 622-5 for general (non-load-bearing) use. [7]

4. Plywood - Wikipedia

   en.wikipedia.org/wiki/Plywood

   Plywood for indoor use generally uses the less expensive urea-formaldehyde glue, which has limited water resistance, while outdoor and marine-grade plywood are designed to withstand moisture, and use a water-resistant resorcinol-formaldehyde or phenol-formaldehyde glue to prevent delamination and to retain strength in high humidity. [17]

5. Magnesium oxide wallboard - Wikipedia

   en.wikipedia.org/wiki/Magnesium_oxide_wallboard

   Some versions are suitable for general building uses and for applications that require fire resistance, mold and mildew control, as well as sound-control applications. Magnesia board has strength and resistance due to very strong bonds between magnesium and oxygen atoms that form magnesium oxide crystals (with the chemical formula MgO).

6. Hardboard - Wikipedia

   en.wikipedia.org/wiki/Hardboard

   Hardboard is similar to particle board and medium-density fiberboard, but is denser, stronger and harder because it is made out of exploded wood fibers that have been highly compressed. [ 3 ] The density of hardboard is higher than 500 kg/m 3 (31 lb/cu ft), [ 4 ] usually about 800–1,040 kg/m 3 (50–65 lb/cu ft). [ 5 ]

7. Engineered wood - Wikipedia

   en.wikipedia.org/wiki/Engineered_wood

   Oriented strand board (OSB) is a wood structural panel manufactured from rectangular-shaped strands of wood that are oriented lengthwise and then arranged in layers, laid up into mats, and bonded together with moisture-resistant, heat-cured adhesives. The individual layers can be cross-oriented to provide strength and stiffness to the panel.

8. Wood–plastic composite - Wikipedia

   en.wikipedia.org/wiki/Wood–plastic_composite

   Wood-plastic composite. Wood–plastic composites (WPCs) are composite materials made of wood fiber/wood flour and thermoplastic(s) such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), or polylactic acid (PLA). In addition to wood fiber and plastic, WPCs can also contain other ligno-cellulosic and/or inorganic filler materials.

9. Building insulation material - Wikipedia

   en.wikipedia.org/wiki/Building_insulation_material

   Epoxy is too expensive to use as an insulator on its own, but it has a high R-value (7 to 9), high strength, and good chemical and moisture resistance. SIPs come in various thicknesses. When building a house, they are glued together and secured with lumber. They provide the structural support, rather than the studs used in traditional framing.