The startup has raised $28 million to help fund a nationwide expansion of its cardboard-based cellulose building insulation.
The cement startup promises to slash carbon emissions in the process, helping the company raise a $6.5 million seed round.
This almost sounds too good to be true: a Japanese company called <a href="http://www.tis-partners.co.jp/">TIS&Partners</a> [JP] has developed a new kind of construction material that's supposedly