A Review of Insulation Materials for Enhanced Building Energy Performance

¹ Mohammed V University in Rabat, Material, Energy and Acoustics Team (MEAT), Higher School of Technology in Salé, Avenue Prince Héritier, B.P: 227, Salé Médina, Morocco
² Cadi Ayyad University in Marrakech, National School of Applied Sciences in Safi, MISCOM Laboratory, Route sidi Bouzid, BP63 46000, Safi, Morocco

^* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.

Published online: 22 May 2026

Abstract

Insulation materials are essential for improving building energy efficiency. Both traditional and modern options offer distinct advantages and limitations. Traditional materials include rock wool, acrylic, and fiberglass. Rock wool provides high thermal resistance and acoustic performance but raises environmental concerns. Acrylic is lightweight and easy to install but has limited durability and a notable ecological footprint. Fiberglass is cost-effective, though installation can pose health risks. Modern alternatives include aerogel, rubber, wood, and cellulose. Aerogel offers excellent insulation at low density but is expensive. Rubber absorbs vibrations effectively, especially when recycled. Wood- and cellulose-based insulation have low carbon footprints, though their performance depends on installation conditions. Comparing these materials reveals the need to balance thermal efficiency, cost, durability, and environmental impact to optimize building comfort and sustainability. Selecting the appropriate insulation requires a careful assessment of these factors to achieve both energy savings and ecological responsibility.