DuPont Airguard Control - Air & Vapour Control Layer for Internal Building Applications - 1.5m x 50m Roll

DuPont AirGuard Control is a high‑performance air & vapour control layer (AVCL) designed to reduce interstitial condensation and improve the airtightness of internal building envelopes. Installed on the warm side of insulation, it regulates moisture movement within walls, roofs and ceilings, helping maintain thermal efficiency and long‑term structural integrity. AirGuard Control is a robust polyethylene membrane engineered to provide a controlled vapour resistance suitable for most residential and commercial applications. By limiting the passage of warm, moist air into the building fabric, it reduces the risk of condensation forming within insulation layers or structural components. The membrane also contributes to improved airtightness, supporting compliance with modern energy‑efficiency standards such as Part L and EN 12114.

AirGuard Control is valued for its balanced vapour resistance, durability, and ease of installation, making it a dependable choice for modern, energy‑efficient construction. Its ability to reduce condensation risk while improving airtightness ensures long‑term performance of insulation and structural elements.

CHARACTERISTICS

• Moisture control — reduces interstitial condensation within roofs and walls.
• Improved airtightness — helps achieve lower air‑leakage rates and better thermal performance.
• Durable polyethylene membrane — strong, tear‑resistant and suitable for site handling.
• Easy installation — lightweight, flexible and compatible with standard fixing methods.
• Energy‑efficiency support — assists compliance with modern building regulations.
• Compatible with most insulation types — mineral wool, PIR, EPS and wood fibre systems.

APPLICATION

• Timber‑frame walls
• Warm‑roof constructions
• Internal partition walls
• Ceilings and loft conversions
• Refurbishment projects

CERTIFICATION

• Conforms with EN 13984,
• BBA certificate 08/4548