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  2. Twinwall plastic - Wikipedia

    en.wikipedia.org/wiki/Twinwall_plastic

    Although single layer polycarbonate sheeting is more flexible than polycarbonate in twinwall configuration, it still retains significant advantages over alternative materials, including glass. A typical 6mm sheet has a density of 0.72 g/cm^2 [ 6 ] and a thermal insulation R value of 0.3 m^2°C/W, while allowing 80% of visible light pass through ...

  3. Greenhouse - Wikipedia

    en.wikipedia.org/wiki/Greenhouse

    The terms greenhouse, glasshouse, and hothouse are often used interchangeably to refer to buildings used for cultivating plants. The specific term used depends on the material and heating system used in the building. Nowadays, greenhouses are more commonly constructed with a variety of materials, such as wood and polyethylene plastic. [2]

  4. Low-density polyethylene - Wikipedia

    en.wikipedia.org/wiki/Low-density_polyethylene

    Production of these trace gases from virgin plastics increases with surface area and with time, so that LDPE emits greenhouse gases at a more unsustainable rate than other plastics. In a test at the end of 212 days' incubation, emissions recorded were 5.8 nmol g −1 d −1 of methane, 14.5 nmol g −1 d −1 of ethylene, 3.9 nmol g −1 d −1 ...

  5. Trombe wall - Wikipedia

    en.wikipedia.org/wiki/Trombe_wall

    Today, the Trombe wall continues to serve as an effective strategy of passive solar design. The first well-known example of a Trombe wall system was used in the Trombe house of Odeillo, France in 1967. [13] [3] The black painted wall is constructed of approximately 2 foot thick concrete with an air space and a double glazing on its exterior ...

  6. Sandwich panel - Wikipedia

    en.wikipedia.org/wiki/Sandwich_panel

    Sandwich panels are an example of a sandwich-structured composite: the strength and lightness of this technology makes it popular and widespread. Its versatility means that the panels have many applications and come in many forms: the core and skin materials can vary widely and the core may be a honeycomb or a solid filling.

  7. Plastic - Wikipedia

    en.wikipedia.org/wiki/Plastic

    For example, since 2010 over US$200 billion has been invested in the United States in new plastic and chemical plants, stimulated by the low cost of raw materials. In the European Union (EU), too, heavy investments have been made in the plastics industry, which employs over 1.6-million people with a turnover of more than 360 billion euros per year.

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