The APC Cork 1/8" Cork Underlayment (100 sq. ft Roll) is an excellent solution for thermal insulation. This underlayment can be used under all floor installations. It will bridge minor gaps that subfloors or existing floors have. The 1/8" Cork Underlayment (100 sq. ft Roll) is made with cork and other premium quality materials. It is FSC certified, which ensures that the materials were sourced from sustainable forests and that no woodworkers were exploited in the making of this product. It requires adhesives for surface installation. It is approved for use over wood and concrete subfloors. The underlayment provides cushioning that makes your carpet feel comfortable. It also acts like a shock absorber, which helps stand up to wear and tear. It covers minor subfloor variations. It ensures superior in-room noise reduction. It prevents decay, enabling years of reliable use. This underlayment is hypoallergenic, making it safe for you and your loved ones. It is fire, water, and weather resistant, making it compatible with all environments. The 1/8" Cork Underlayment (100 sq. ft Roll) by APC Cork is the perfect addition to your home. It is manufactured by APC Cork, which offers the most extensive portfolio of floating planks and cork tiles.