Loftfirrt

Loftfirrt is a term used to describe a specific type of insulation material commonly found in attics or other unoccupied roof spaces. It is typically a loose-fill material, meaning it is blown or poured into the cavity rather than being manufactured in rigid boards or batts. Loftfirrt is designed to create a thermal barrier, reducing heat transfer between the conditioned living space below and the unconditioned attic space above. This helps to improve the energy efficiency of a building, keeping it cooler in the summer and warmer in the winter.

The composition of loftfirrt can vary. Common materials include fiberglass, cellulose (often made from recycled paper), mineral wool, or even natural materials like sheep's wool. The R-value, a measure of thermal resistance, is a key characteristic of loftfirrt, indicating its effectiveness in insulating. Higher R-values mean better insulation. Installation methods for loftfirrt usually involve specialized blowing machines that distribute the material evenly throughout the attic. Proper installation is crucial to avoid gaps or compression, which can significantly reduce its insulating performance. Over time, loftfirrt can settle, potentially reducing its effectiveness, and may require topping up.