YBS Foil-Tec Double 1m x 25m YBS Foil-Tec Double is a high-performance insulating vapour control layer (VCL) designed to improve thermal efficiency while helping to manage moisture within the building envelope. Suitable for use in roofs, walls, ceilings, and floors, this versatile 2-in-1 solution combines reflective insulation technology with effective vapour control in a single product. Fully approved by BDA Kiwa and NHBC, Foil-Tec Double is suitable for both new-build and refurbishment projects and can contribute towards improved EPC ratings when incorporated into a compliant insulation system. Despite being less than 1mm thick, Foil-Tec Double delivers impressive thermal performance. When installed within wall applications and used in accordance with installation guidelines, it can achieve an R-value of up to 1.48 m²K/W, helping to reduce heat loss and improve overall energy efficiency. Manufactured from durable, non-degradable materials, Foil-Tec Double is designed to maintain its thermal performance and structural integrity throughout its service life. This makes it a reliable long-term solution for enhancing insulation performance across a wide range of residential and commercial applications. For effective vapour control, all joints and overlaps should be fully sealed using YBS Thermaseal Foil Joining Tape. When correctly taped and sealed, the product acts as a vapour control layer, helping to minimise the risk of interstitial condensation and moisture-related issues within the building structure. Foil-Tec Double is also widely used alongside underfloor heating systems. To maximise reflective performance, we recommend using YBS Saddle Clips during installation. These help secure the insulation while creating the air cavity required for the reflective foil surface to function effectively. Comprehensive installation guidance, target U-values, and technical specifications are available within the product data sheet. Need technical advice? Our experienced team is on hand to help with product selection, installation guidance, and project-specific requirements. Multifoils Direct alsos offer next working day delivery on YBS Foil-Tec Double 1m x 25m, on orders over £100 VAT FREE GIFT Spend £500 VAT and Choose a FREE GIFT at the checkout! Free Gifts Include: Thermaseal Foil Joining Tape, a Heavy Duty Staple Gun Kit, Multifoil Insulation Scissors, or Thermaseal Double-Sided Tape.
