Foam is a plastic (polystyrene), which received the pores (bubbles) by a certain technology. In these stages is the air through which the foam is the insulation.
Foam advantages
Low weight.
Do not rot.
Do not oxidized.
As the insulation is easy to install.
Do not exposed to moisture.
Easily processed (cut simple adaptation of Nichrome wire, through which an electric current, but it is possible and simpler. Conveniently cut sharpened knife with a thin blade) .
rather cheap.
Generally available: you can buy it in many shops of building materials .
Foam disadvantages
Lights And already at 80 degrees! Conclusion: it is necessary to conclude between non-combustible materials such as brick walls inside. For external wall insulation – to close the cement-sand plaster or a protective and decorative covering, such as siding .
Do not durable, so do not apply by itself, as a material for load-bearing structures, but only in the form of hollow blocks, in which the concrete is poured. Or in the form of sheets, attached to the wall. Or in the form of chips, is poured into the wall between the rows of masonry.
Affected rodents (eg, mice).
Structures insulated with foam, do not breathe, the house becomes like a plastic bag in which to live necessarily quality ventilation device.
Sustainability is highly questionable, t. To. From any plastic, especially fusible stand out harmful substances. Conclusion: The foam can insulate a house just outside .So, is the best foam insulation?
