What is lagging in the loft?

Lagging in the loft typically refers to the installation of insulation materials in roof spaces or attics to improve energy efficiency. This process helps to minimize heat loss in winter and keeps the space cooler in summer, contributing to more stable indoor temperatures. Proper lagging can also reduce energy bills and enhance comfort in the living areas below. Additionally, it may involve the use of lagging materials like fiberglass, foam boards, or reflective barriers.