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RoofLITE+ RCF Roofing Underlay Felt Collar

Trade prices for all

Fast online ordering

Click & Collect

Nationwide Delivery

Trade prices for all

Fast online ordering

From: £16.63 Inc VAT

Free Delivery

Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days

Order Online

Best Prices

RoofLITE+ RCF Roofing Underlay Felt Collar

From: £16.63 Inc VAT

Free Delivery

Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days
Delivery: 2 to 4 Days

Everyday Low Prices

Our huge buying power with leading manufacturers means lower prices for you

RoofLITE+ RCF Roofing Underlay Felt Collar

The RoofLITE+ RCF Roofing Underlay Felt Collar is an essential roof window installation accessory, designed to create a secure, weatherproof connection between your roof membrane and your RoofLITE+ roof window. Manufactured from high quality pleated, vapour permeable underfelt foil with an integrated butyl sealing strip, the RCF collar helps protect against water ingress while allowing moisture vapour to escape.

Suitable for all roofing materials, the RCF Underlay Felt Collar improves the long term weather resistance of your roof window installation and simplifies fitting for professional installers and competent DIY users alike.

Reliable Weatherproof Protection

The RoofLITE+ RCF Collar forms a watertight seal between the roof underlay and the roof window frame, helping to prevent water penetration around one of the most vulnerable areas of the roof.

Its breathable construction allows moisture vapour to escape from within the roof structure while preventing rain and external moisture from entering.

Flexible Pleated Design

Manufactured from pleated underfelt foil, the RCF collar easily adapts to the surrounding roof construction, creating a close fitting seal regardless of minor variations in the roof structure.

The flexible material makes installation faster while ensuring a neat and reliable finish.

Integrated Butyl Sealing Strip

An integrated butyl bonding strip provides a secure, airtight connection between the roofing membrane and the collar, improving weather resistance and reducing the risk of unwanted air leakage around the roof window.

Faster and Easier Installation

The RoofLITE+ RCF Roofing Underlay Felt Collar is supplied as a single piece, pre-sized to match your selected roof window. This simplifies installation and helps achieve a consistent, professional finish while reducing installation time.

Suitable for All Roofing Materials

The RCF Roofing Underlay Felt Collar is compatible with all common roofing materials and can be installed on roof pitches between 15° and 90°, making it suitable for a wide range of domestic and commercial roofing projects.

For maximum thermal performance and weather protection, the RCF collar is recommended for use alongside the RoofLITE+ IFC or IFCS Insulating Frame Collar, depending on your roof window model.

Key Features

  • Creates a waterproof connection between the roof membrane and roof window
  • Vapour permeable construction allows moisture to escape
  • Helps prevent water ingress around the roof window
  • Flexible pleated foil adapts to roof construction
  • Integrated butyl strip provides a secure airtight seal
  • Quick and easy single-piece installation
  • Improves long term weather protection
  • Suitable for all roofing material types
  • Compatible with roof pitches from 15° to 90°
  • Ideal for new roof window installations and replacements

Technical Information

Feature Specification
Product RoofLITE+ RCF Roofing Underlay Felt Collar
Material Pleated vapour permeable underfelt foil
Seal Integrated butyl bonding strip
Roofing Materials Suitable for all roof covering types
Roof Pitch 15° to 90°
Components Included 1
Approximate Weight 0.4kg (depending on size)
Function Creates a waterproof connection between roof membrane and roof window

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We offer nationwide delivery on most products.

Delivery times are in working days (excluding weekends and bank holidays). Orders placed after 12 noon are processed from the next working day.

Some products and locations have delivery restrictions. Available options and costs are calculated automatically at checkout.

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Rated as Excellent

Our customer service is rated as excellent on Trustpilot where we have over 1500 genuine customer reviews.