Roof Waterproofer - 5kg
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Out of stock

Dries in 24 hours

Covers 1m² per kg

Durable, wont go brittle or crack

Perfect for tiled, corrugated, flat, iron, felt roofs and sheds

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If you want to avoid costly re-roofing, or get a few more years out of your garage or shed roof before it really starts to deteriorate, then Roof Waterproofer is the product for you.

Here’s what you need to know:

  • A flexible, rubber coating that waterproofs and protects your roof
  • Can be used on most roof surfaces including tiled, concrete, corrugated iron and felt. Particularly recommended for flat roofs and sheds
  • Can be used in the pouring rain for emergency repairs

Features and benefits:

  • Cost effective waterproofer – no hidden extras
  • A flexible coating that won't crack in the cold or soften in the hot weather
  • Really easy to apply - just brush it on


  • You can apply Roof Waterproofer when it’s pouring with rain in an emergency. For long term repairs the surface should be as dry as possible. Remove dirt, moss and other loose material with a wire brush. A fungicide may be used where applicable.


  • Load the brush generously and apply 1m2 per kilo of Roof Waterproofer. If you need a second coat then apply it at right angles to the first one. Don’t brush out to a thin film – the idea here is to apply a good thick coating

Trade Tip:
For larger splits or deep cracks, mix some dry sand with Roof Waterproofer to produce a mortar. Apply a coat of Roof Waterproofer as a primer and then trowel in the mortar on top.

Useful Information

Roof Waterproofer Product Information Sheet

Roof Waterproofer Safety Data Sheet

Primer required:


Use where:


Use on:

Tiled, corrugated, flat, iron and felt roofs and sheds


Durable, won’t go brittle or crack

Drying time:

24 hours

Number of coats:



1m² per kg



      Ask a Question
      • A: The Colour is Black.

      • A: Hi, you can apply a second coat, but in general you should not need to as it should be applied as a good thick coating. However, if you do require a second coat then apply it at right angles to the first coat to get the best results.

      • A: Yes this product can be applied to a lead roof and will create a waterproof barrier to seal any splits or cracks. Our data sheet can be found on our website which covers preparation, application and drying times which you should find helpful.