• Lead
  1. Milled Lead
  2. Lead Alternatives
  3. Lead Associated Products
  4. Sandcast Lead
• Ventilation
  1. Flat Roof Ventilation
  2. Pitched Roof Ventilation
  3. Soffit Vents
  4. Eaves & Fascia Vents
  5. FloPlast External Air Admittance Valves
  6. Mechanical & Soil Extraction
• Pitched Roofing
  1. Roofing Felt & Breather Membranes
  2. Dry Fix Products
  3. Roof Batten & Timber
  4. Man-Made Roofing Slate
  5. Natural Roofing Slate
  6. Low Pitch Solutions
  7. Chimney Products
  8. Roof Tiles
  9. Roof Tile Clips
  10. Ridge & Hip Tiles
  11. Copper Ridge Systems
  12. Plywood / Sterling / Decking
  13. Pipe Flashings
  14. Pitched Roofing Accessories
• Flat Roofing
  1. Flat Roofing Felts
  2. Fibreglass Roofing
  3. EPDM Single-Ply Membrane
  4. Promenade Tiles
  5. Timber Decking Tiles
  6. Pave Support Pads
  7. Roof Edge Trims
  8. Roof Rainwater Outlets
  9. Liquid Rubber Membrane
  10. Acrypol Quartzdek
  11. Pipe Collars & Flashings
  12. Plywood / Sterling / Decking
  13. Roof Batten & Timber
  14. Green Roofing Systems
• Flat Roof Windows
  1. VELUX Flat Roof Domes
  2. Mardome Flat Roof Domes
  3. Whitesales Flat Roof Domes
  4. VELUX Flat Roof Kerb / Window Upstands
  5. Fakro Flat Roof Window Upstands
  6. VELUX Flat Roof Smoke Vent Systems
  7. Sunpipes & Suntubes
  8. VELUX Atrium (Flat Roof Design Inspiration)
• Pitched Roof Windows
  1. Fakro
  2. VELUX
  3. RoofLITE
  4. Ubbink
  5. Sola Skylights
  6. Sunpipes & Suntubes
  7. VELUX Solar Collectors
  8. VELUX Blinds
  9. Fakro Blinds
  10. RoofLITE Blinds
• Accessories
  1. Compounds & Solutions
  2. Acrypol Metal-Kote
  3. Acrypol Nu-life Roof Tile Renovation
  4. Nails / Slate Hooks / Fixings Etc
  5. Hedgehog Gutter Brush & Guards
  6. Guttering
  7. PVC Fascia & Cladding
  8. Ladders
  9. Scaffold Towers & Platforms
  10. Loft & Access Doors
  11. Tile & Snow Guards / Safety
  12. Silicone / Sealants / Foam & Guns
  13. Adhesives
  14. Chemical Additives
  15. Flashing Tape / Flashband
  16. Cable & Solar Pipe Roof Outlets
  17. Sand & Cement
  18. Anti Bird Spikes
  19. Plasterboard, Masterboard & Render Bead
  20. Bat Conservation
  21. Eco Friendly Products
  22. Overseas Carriage Charges
  23. Building Products
• Roofing Sheets
  1. Bituminous (Coroline & Onduline)
  2. Polycarbonate (Corotherm)
  3. Ondutile
  4. Flat Sheets
  5. PVC Sheets
  6. Corolite Corrugated Polycarbonate
  7. GRP Sheets
  8. Metal Roofing & Cladding
  9. Fibre Cement Roofsheets
  10. Pipe Flashings
  11. Eco Planet Plastic Roof Tiles
• Shingles
  1. Cedar Shingles / Shakes
  2. Bitumen Felt Shingles
• Tools
  1. General Tools & Accessories
  2. Pitched Roofing Tools
  3. Flat Roofing Tools
  4. Lead Roofing Tools
  5. Packaging Products
  6. Power Tools
  7. Gloves & Protective Wear
• Insulation
  1. Pitched Roofing Insulation
  2. Flat Roofing Insulation

VELUX BFX U04 1000 Underfelt Collar 134cm x 98cm

VELUX BFX U04 1000 Underfelt Collar 134cm x 98cm

Underfelt Collar – BFX

• To protect against drafts and rain driven water and snow around the window installation. Comes as one piece making fitting easy, especially around difficult corners.
• The transverse drainage gutter included also prevents any water ingress around the window caused by missing or broken slates or tiles above the window.

People who bought this item also purchased...

Your Shopping Cart

Newsletter Signup

Add this page to your: