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RapidRoof Roof Waterproofing Liquid

Reasons why homeowners choose this product:

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Special Price £106.14 Regular Price £122.64
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Estimated Delivery:1-2 days


9122 Reviews

Gold Trusted Service Award 2021

Product Overview

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9122 Reviews

Gold Trusted Service Award 2021

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Lead Time1-2 days
ManufacturerLiquid Roofing Systems

LRS’s RapidRoof provides a unique high performance, rapid curing and cold liquid applied waterproofing system. This system possesses a wide range of applications and can be quickly installed even on complex roofs. Suitable for use on almost every surface this system is an ideal choice of waterproofing for both commercial and residential projects and can be installed year round.

One part of a two part system, this liquid can be combined with a catalyst to create a mixture that will cure in only twenty minutes.

Overview of LRS – RapidRoof

  • High performance, PMMA cold liquid applied waterproofing system
  • Cost effective waterproofing option for commercial and residential projects
  • Typical cure time of 20 minuets
  • Cures down to zero degrees
  • Seamless and fully bonded
  • Up to 200% elasticity – able to retain shape under testing conditions
  • Suitable for use on most surfaces including felt, asphalt, metal, 0SB3, asbestos and concrete
  • Available in weights of 5KG, 7.5KG and 10KG

Common Questions About This Waterproofing Liquid

Where Can I Use This Waterproofing System?

RapidRoof waterproofing can be used for a variety of applications and is suitable for use on most surfaces. It has been designed to be applied directly onto your roofs surface, in most cases without primer, and thus can be incorporated into the building of a new roof; applied onto 0SB3 boards. Alternatively, this liquid can also be used to overcoat existing, old, or failed membranes such as felt, asphalt, metal, or GRP.

How Do I Install This Waterproofing System?

If using primer, it is advised to allow a one hour gap before applying the waterproofing layer. This liquid can then be prepared and applied using a brush or roller. Two coats should always be applied, again, leaving an hour between coats. Once the catalyst has been combined in with the liquid, you will have twenty minutes to apply the mixture. Application rates vary depending on your roof. For guidance, refer to the RapidRoof installtion guide above.

How much Liquid and Catalyst Do I Need for My Roof?

The liquid should be decanted to allow for the desired area to be covered at a rate of 1kg per m2 for the first coat and 0.5kg per m2 for the second coat. The Catalyst should be added at a ratio equating to 2% of the main product e.g. 20g of catalyst to every 1KG of liquid. For more information, refer to LRS’s installation guide above.

Why use Liquid Applied Waterproofing Systems?

It is a commonly held belief that Liquid applied systems provide some of the most cost effective waterproofing available. These systems allow for flexible application regardless of how detailed your roof is and can be installed quickly with minimal waste.

Have More Questions About This Waterproofing Liquid? 

If you have any questions, don’t hesitate to get in touch with our award-winning team. They’ll help you pick the ideal product for your project, whether you’re revitalising an existing property or are tackling a larger new build. You can get in touch by calling 01295 565 565 or using our online live chat.

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Lead Time1-2 days
ManufacturerLiquid Roofing Systems
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With the festive break approaching, we're aim to keep you informed about any impact this may have on your delivery. You will therefore find additional information about when orders placed over during this break will be processed below the 'Add to Basket' button on most products. If you still have questions, please call our friendly team on 01295 565 565.


We understand that ordering products online can be daunting, especially when ordering roofing materials. It is for this reason that we make our delivery processes as simple as possible for you. However, there are a few things to know about our delivery processes. These include:

  • When placing an order, you’ll see a breakdown of your delivery charge in your shopping cart. These charges are for the UK mainland only, and additional charges may apply for Northern Ireland, the Scottish Highlands and other regions.

  • Deliveries only take place on working days (Mon - Fri) and do not take place on Bank Holidays. 

  • You’ll find an estimated delivery on the majority of product pages below the 'Add to Basket' button. Whilst we aim to deliver your items within the estimated delivery, it is only an estimate. 

  • You're able to select a preferred delivery date in your shopping basket. Whilst we aim to deliver your items on this date, it is not guaranteed.
  • Orders placed after 12pm, during the weekend, and on a bank holiday will not be processed until the next working day. Please consider this when placing your order as it may impact your delivery date.

  • After you’ve placed your order, you’ll receive an order confirmation by email outlining the details of your order. Please check your order confirmation email and inform us of any mistakes or errors immediately.

  • Shortly after receiving your order confirmation you’ll receive a separate email confirming the planned delivery date.

  • We can only provide a delivery date and are not able to confirm the time delivery will be attempted. Therefore, we ask that somebody is able to accept and sign for your items throughout the started delivery date.

  • If you are unable to accept and sign for an order, it can be left in a safe location in most circumstances. Please email if you would like an item to be left without a signature. 

  • Whilst we aim to hold the majority of our products in stock, due to the vast number of products we offer this is not always possible. Because of this we are required to send your items directly from the manufacturer on a small number of occasions, at which point a different delivery charge may apply as standard.  

  • On occasions the items ordered may be shipped from different depots, which could result in seperate deliveries taking place.

If you have more questions about our products or delivery, please contact our team online or by telephone.

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We understand mistakes can be made and we therefore keep our cancellation and returns policy as simple as possible. However, there are a few things to know about cancelling an order or returning an item. These include:

Items Not Required

Should you no longer require an item, you have the right to cancel within 14 days of delivery unless the items are custom made. You needn’t give us reason for cancelling your order but will be required to notify us by email. Once notified we will provide an address for the items to be returned to and arrange the necessary refund.

Faulty or Damaged Items

On the rare occasion that an item is delivered faulty or damaged, we will exchange it or provide a refund. We must be notified by email as soon as possible and may require images. To avoid such an issue, we ask that customers do not sign for damaged goods.

Custom Made Items

A handful of items are ‘Custom Made’. This means they are typically manufactured to the specifications provided by you and are therefore non-refundable. This is unless they are deemed to be faulty or damaged at the time of delivery, at which point you should notify us by email as soon as possible.

Further Information

For further information on cancellations, returns and refunds please read our full policy by clicking here. This confirms any other requirements to consider (i.e. packaging), fees that may be charged (i.e. admin charges) and our policy for businesses.