Insulation for geodesic domes is important to maintain a comfortable temperature and reduce energy consumption. There are different types of insulation materials and methods that can be used for geodesic domes, depending on your budget, preferences, and climate. Here are some examples:
Cotton fabric: This is a layer of thick sound-absorbing synthetic cotton that is attached to the inner side of the dome cover, creating an air pocket that provides thermal insulation. Cotton fabric insulation can protect your dome in any season and provide soundproofing. It is also eco-friendly and easy to install.
PIR panels: These are rigid foam boards that are cut into triangular or pentagonal shapes to fit the dome frame. PIR panels have high thermal resistance and low moisture absorption, making them suitable for hot and humid climates. PIR panels can also be covered with different materials, such as wood, metal, or plastic, to create a more aesthetic look.
Spray foam: This is a liquid polyurethane foam that is sprayed onto the dome frame and expands to fill the gaps between the struts. Spray foam insulation can conform to any shape and size of the dome, creating a seamless and airtight barrier. Spray foam insulation can also improve the structural strength and durability of the dome.
Fiberglass Insulation: Fiberglass insulation consists of tiny glass fibers that trap air, providing effective thermal resistance. It can be installed in rolls or blown into spaces, including geodesic dome structures. Fiberglass insulation is a common and affordable choice for dome owners.