Rockwool PWCB Cavity Barrier 110mm

110mm Rockwool PWCB Cavity Barrier delivers outstanding fire protection for timber frame and masonry constructions. These products are engineered to surpass minimum building regulation standards for fire resistance in concealed wall cavities, with proven performance up to 60 minutes of integrity and insulation.

Manufactured from non-combustible stone wool and wrapped in protective polythene sleeves, this cavity wall insulation solution provides thermal performance alongside weather protection during construction. The white polythene sleeves enable quick product identification on site.

This Rockwool cavity barrier combines fire safety, acoustic flanking reduction, and thermal bypass prevention in one product. It also seals perimeter edges effectively, minimising air infiltration and associated heat loss.

Product specification

• Thickness: 110mm
• Width: 200mm
• Length: 1200m
• Length Coverage: 1.2 LM (linear metre)
• Quantity: 1
• Also Avaiable in packs of: 10
• Thermal Conductivity: 0.038 W/mK
• R-Value: 2.47 m²K/W
• Fire Rating: A1
• Fire Resistance - Up to 60 minutes

Key points

• Euroclass A1 non-combustible material.
• FLEXI Edge technology ensures secure friction fit.
• Superior acoustic, thermal and fire protection performance.
• Maintains integrity even when timber studs shrink.
• Zero Ozone Depletion Potential (ODP) and Global Warming Potential (GWP).
• Simple installation process.
• Fire resistance up to 60 minutes (EI).
• Reduces acoustic flanking transmission.
• Minimises air leakage and heat loss.
• Unaffected by structural movement.
• Works in vertical and horizontal applications.
• Durable on-site and weather protected.

Application

Rockwool PWCB Cavity Barrier suits both vertical and horizontal installation scenarios. For vertical applications, secure the flanges to the inner leaf at 150mm intervals using staples or clout nails before the outer cavity wall is compressed. In horizontal applications, fix only the top flange of the polythene sleeve.

Certification

Euroclass A1 fire rating: ROCKWOOL Cavity Barriers meet the highest fire safety standards, tested and assessed for up to 60 minutes of fire resistance (both integrity and insulation) in accordance with BS 476: Part 20.

• ISO14001: Compliant with Environmental Management standards.
• EN 13162: Manufactured in accordance with European standards.
• A+ rating on BRE Green Guide: Recognised for excellent environmental performance.

Fire Protection

Rockwool PWCB Cavity Barrier has been developed to exceed minimum Building Regulation requirements for fire resistance within concealed wall cavities.

Resilient Performance

This cavity barrier remains unaffected by building movement, timber shrinkage, or temperature fluctuations, guaranteeing reliable performance throughout the building's lifespan.

Durability

Designed to withstand on-site handling and installation stresses, this product provides protection for the entire life of the structure.

Vertical or Horizontal Solution

Rockwool PWCB Cavity Barrier offers flexibility for both vertical and horizontal applications. In vertical installations, secure both flanges to the inner leaf at 150mm intervals, whilst in horizontal applications, fix only the top flange of the polythene sleeve.

Acoustic Protection

Rockwool PWCB Cavity Barrier effectively blocks flanking noise transmission along concealed cavities in both external wall insulation and separating walls, enhancing acoustic comfort throughout the building.

More Information on Rockwool PWCB Cavity Barrier

• Manufacturer Link: 110mm Rockwool PWCB Cavity Barrier
• Browse our complete Rockwool Insulation range and filter by thickness or coverage using the left-hand navigation. For project suitability advice or bulk quotations, contact us by phone on +4402038839057, email sales@insulationbee, or use Live Chat - Lowest UK Rockwool Insulation Prices.