Tools You Trust. Projects You Love.!

Andytools

Back to product

Fixing and buying guide

VELUX Twin and Combination Flashings 134x98cm EBL UK04 0021B

Product overview and suitability

This twin and combination flashing is specifically designed for VELUX skylight and rooflight installations. It provides the essential watertight seal between the window frame and the roof structure. The flashing is compatible with F16 and F24 timber grades, which are standard structural timber classifications used in UK roofing. If your timber frame has been finished with paint or varnish, this flashing will work effectively with those surfaces.

  • Designed for VELUX skylights and rooflights only
  • Works with F16 and F24 timber grades
  • Suitable for painted or varnished timber finishes
  • Plastic construction for durability and weather resistance

Sizing and pack contents

The flashing measures 134cm in length and 98cm in width, which is sized for standard roof openings. Confirm these dimensions match your skylight or rooflight opening before ordering. This is a single flashing unit, so check your installation requirements to determine if you need multiple units for your project.

  • Length: 134cm
  • Width: 98cm
  • Single unit per pack
  • Verify opening dimensions before purchase

Pre-installation checks and preparation

Before fitting, confirm that your VELUX skylight or rooflight is compatible with this flashing model and that your timber frame grade is either F16 or F24. Check that any paint or varnish finish on the timber is in good condition and not peeling or damaged, as this affects the seal quality. Ensure you have appropriate fixings for your specific roofing application and follow current site practice and VELUX manufacturer guidance during installation.

  • Verify VELUX window compatibility
  • Confirm timber grade is F16 or F24
  • Inspect timber finish condition
  • Prepare appropriate fixings for your roof type
  • Follow VELUX installation instructions