1M Window Water Barrier Strip Rain Seal & Weatherproofing Strip

Help reduce rainwater entering through compatible window gaps with this 1-metre rubber water-blocking strip. Featuring an angled profile, the strip is designed to help redirect water away from window edges while providing an additional barrier against rain and draughts.

The self-adhesive design allows straightforward installation on suitable clean, smooth and dry surfaces without drilling. Ideal for compatible sliding windows, window sills, balcony windows and other areas where additional weather protection may be useful.

Key Features

  • 135° Angled Profile – Designed to help redirect rainwater away from compatible window gaps.
  • Helps Block Rainwater – Provides an additional barrier around suitable window and sill areas.
  • 1 Metre Length – Supplied as a practical 100cm strip that can be fitted according to your requirements.
  • Self-Adhesive Installation – No drilling or screws required on suitable surfaces.
  • Rubber Construction – Flexible material conforms to compatible straight window and sill areas.
  • Helps Reduce Draughts – Can provide additional sealing around suitable gaps where correctly installed.
  • Suitable for Sliding Windows – Useful for compatible sliding window tracks, balcony windows and window sills.
  • Cut-to-Fit Design – Can be trimmed carefully to the required length for your installation.

Ideal For

  • Sliding Windows
  • Window Sills
  • Balcony Windows
  • Window Tracks
  • Rainwater Barriers
  • Window Gap Sealing
  • Draught Reduction
  • Home Weatherproofing
  • Doors & Windows
  • DIY Home Improvement

Specifications

Product Type: Window Water Barrier / Weather Sealing Strip
Material: Rubber
Length: Approx. 100cm / 1 Metre
Profile: Approx. 135° Angled Design
Installation: Self-Adhesive
Application: Window & Sill Weather Protection
Quantity: 1 × 1M Strip

Package Includes

1 × 100cm Window Water Blocking Strip

Installation Guide

  1. Identify the area where water commonly enters or accumulates.
  2. Thoroughly clean away dust, dirt, grease and moisture.
  3. Allow the mounting surface to dry completely.
  4. Measure and cut the strip carefully if required.
  5. Remove the protective adhesive backing gradually.
  6. Position the strip in the required direction and press firmly along its full length.
  7. Allow the adhesive sufficient time to bond before exposing it to heavy rain or moisture.

Benefits

  • Helps reduce rainwater entering suitable window gaps
  • Angled profile assists with water direction
  • Provides additional weather sealing
  • No drilling required
  • Flexible rubber construction
  • Can be cut to the required length
  • Useful for windows, balconies and DIY weatherproofing

Important Notes

This strip provides additional weather protection but is not a substitute for correctly installed window flashing, drainage, glazing seals or professional waterproofing.

For best adhesion, install on a smooth, clean and completely dry surface. Adhesive performance may be reduced on rough, dusty, oily, damp or uneven materials.

Check that installation does not obstruct existing window drainage or weep holes, as these may be required to allow water to escape correctly.

Please check the strip profile and dimensions shown in the listing images before ordering. Slight measurement and colour variations may occur between manufacturing batches.

window seal strip, water barrier strip, rain seal, window weatherstrip, sliding window seal, rubber sealing strip, window draught seal, balcony window seal, window water blocker, weatherproof strip, window sill seal, self adhesive window seal, rainwater barrier, window seal UK.