Waterproofing Systems Guide

Spray Applied Liquid Rubber Roofing

Spray applied liquid rubber roofing systems are increasingly used for large commercial roof refurbishment projects where seamless waterproofing, rapid installation and minimal disruption are critical.

Unlike traditional roofing systems that rely on overlapping sheets or multi-layer installation, spray-applied liquid rubber creates a continuous waterproof membrane across the entire roof surface.

The system forms a seamless elastomeric coating that adheres directly to the existing roof structure, eliminating joints and reducing potential failure points.

Spray applied liquid rubber is particularly suited to large commercial roof structures where installation speed and consistent membrane thickness are essential.

How Spray Applied Liquid Rubber Roofing Works

Spray applied liquid rubber systems use specialised equipment to apply a liquid waterproof membrane directly to the roof surface.

The material is sprayed across the substrate where it rapidly cures to form a seamless waterproof layer.

Because the membrane is applied as a liquid, it conforms to the surface beneath, sealing joints, penetrations and complex details.

This results in a fully adhered waterproof membrane that protects the roof structure from water ingress while remaining highly flexible and resistant to temperature fluctuations.

Typical Applications

Commercial roof refurbishment projects
Warehouse and distribution centre roofing
Industrial buildings and manufacturing facilities
Large flat roof waterproofing projects
Asbestos roof encapsulation systems

Advantages of Spray Applied Liquid Rubber

Seamless waterproof membrane with no joints or laps
Rapid installation across large roof areas
Highly flexible elastomeric coating
Resistant to extreme temperature fluctuations
Suitable for large commercial roof refurbishment

SprayGrade Spray Applied Liquid Rubber System

The SprayGrade system is a professional spray-applied liquid rubber waterproofing system designed specifically for large commercial roofing projects.

The system forms a seamless elastomeric membrane that protects roof structures while allowing rapid installation across large roof areas.

SprayGrade Spray Applied Liquid Rubber System

Frequently Asked Questions

What is spray applied liquid rubber roofing?

Spray applied liquid rubber roofing is a two-component waterproofing system applied using specialist spray equipment. It cures to form a seamless elastomeric membrane directly on the roof surface, eliminating joints and providing continuous waterproof protection.

What size roofs is spray applied liquid rubber suitable for?

Spray applied liquid rubber is designed for large commercial and industrial roof areas, typically from 300 m² upward, where rapid installation and consistent membrane thickness are required.

How fast can spray applied liquid rubber be installed?

SprayGrade is specified at approximately 600 m² per day under suitable conditions using the required spray equipment. Actual output depends on preparation, detailing, access and weather.

Can spray applied liquid rubber be used on asbestos roofs?

Yes. Spray applied liquid rubber is commonly used as part of an asbestos roof encapsulation strategy, sealing and protecting deteriorating asbestos cement roof sheets without the disruption of full removal.

SprayGrade by Location

Local supply, installation and specification support for SprayGrade across the North West.

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Related Systems

Explore the related structural systems, waterproofing technologies and exterior finishes used across modern garden room construction and flat roof waterproofing projects.

Forti Nova supplies EPDM, Liquid Rubber and SprayGrade systems across the North West — serving Blackburn, Preston, Manchester, Bolton, Wigan and Warrington from our Blackburn depot.

Need help choosing the right system?

Call our team or use our guided project enquiry — we'll recommend the right system based on your roof type, size and project requirements.

North West Coverage

Spray Applied Liquid Rubber Across the North West

Forti Nova supplies spray applied liquid rubber roofing systems to contractors and building owners across the North West including Lancashire, Greater Manchester, Merseyside and West Yorkshire. Operating from our Blackburn depot and showroom.

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Discuss Your Commercial Roofing Project

Call our team to discuss SprayGrade supply, contractor training and the approved-contractor route for your project.

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