While foam insulation delivers high energy performance, it carries serious risks—from compromised indoor air quality and hidden moisture damage to long-term health impacts. As the building industry evolves, vapor-open, bio-based alternatives offer a safer, more sustainable path forward—supporting both occupant wellbeing and building resilience.

Massachusetts’ new ADU regulations make it easier than ever for homeowners to create flexible, affordable living spaces. At Rare Forms, our pre-designed, sustainable ADU kits are built to meet these guidelines—offering faster construction, lower costs, and healthier homes that are better for people and the planet.