Isolait

Isolait is a term used in speculative design and building science to denote a class of advanced insulating materials. It is not a single material but a concept for a composite insulation system intended to maximize thermal performance while minimizing thickness.

Design and concept: In theoretical models isolait describes a multilayer panel composed of a low-density core (such as aerogel or bio-based foam) sandwiched between outer skins with low moisture permeability and a thin layer of thermal storage material. The system is designed to reduce thermal bridging and moisture transport and can be tailored for walls, roofs, or cold-chain packaging. The concept emphasizes high resistance to heat flow per unit thickness and compatibility with existing construction practices.

History and usage: The term emerged in 2010s academic and industry discussions exploring next-generation insulation. It has appeared in speculative design literature and some research papers as a framework rather than a specific product, used to compare performance and guide material development.

Applications and performance: Prototypes described under the isolait concept point to potential for high R-values per thickness and improved dew-point control. Real-world performance depends on material choices, layer interfaces, and installation quality. Challenges include cost, fire-safety classifications, long-term durability, and end-of-life recycling.

Manufacture and adoption: Development efforts focus on scalable production methods, reliable bonding between layers, and integration with existing building envelopes. As a concept, isolait has limited widespread adoption and is mainly explored in demonstration projects, research programs, and product-elaboration discussions.

See also: Insulation, thermal conductivity, aerogel, phase-change material, building envelope.