Environmentally friendly insulation material cellulose fiber made from leftover paper from kiosk sales, regenerated without using heat.
The market share overseas is very high, and it is an insulation material that has been around for a long time. Although it does not have a large share domestically yet, it is well-known among those who seek high quality and environmental consideration. It excels in moisture absorption and soundproofing compared to other insulation materials. Cellulose fiber is available both as imported and domestic products, but in Japan, there are JIS standards that specify flame resistance, insect resistance, and water repellency. Unlike the humid conditions in Japan, imported products may not have water-repellent treatment. Even among domestic products, the one produced in large quantities, made solely from leftover paper from kiosks, and subjected to strict quality checks more than three times a day is the Dampack from Oji Paper Co. Dampack publishes safety data for all its contents. Cellulose fiber is fundamentally based on responsible construction. In wall construction, we meticulously install a net in advance and apply it dry with a density of 60K between the studs. For insulation renovations in existing homes, since the PV is uncertain, cellulose is recommended for greater safety. We also install nets under the floor and carry out floor insulation renovations. We are a member of the NPO New Housing Association (New Wooden Housing Technology Research Council) and assist in calculating Q values and heating loads using QPEX heat loss coefficient calculation software. We also conduct airtightness measurements.
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