5 Things to consider when choosing a liquid roofing system
Liquid-applied waterproofing has become an increasingly popular solution for flat roof refurbishment. But with a growing number of systems available, choosing the right one isn’t simply a case of comparing products and prices.
The right system needs to suit the roof, the substrate, the environment and the requirements of the project.
Here are five important factors for you to consider:
1. The substrate
Before selecting a liquid waterproofing system, it’s essential to understand what you are working with.
What is the existing substrate material, for example concrete, timber, asphalt, metal, or another material? Is the substrate sound? Are there areas of ponding water, movement, cracks or existing waterproofing that need to be considered?
2. The application conditions
Weather can have a significant impact on roofing projects.
Temperature, moisture, and rainfall all need to be considered when selecting and applying a liquid waterproofing system.
This is particularly important in the UK, where weather conditions can change quickly. A system with a suitable application temperature range and predictable curing characteristics can help contractors make better use of available working windows.
3. Reinforcement and system design
Liquid waterproofing isn’t simply about applying a coating to a roof.
The system needs to be designed to accommodate movement and provide appropriate reinforcement, particularly across areas where the roof is subject to greater stresses.
Reinforcement matting, correctly embedded within the system, can form an important part of the overall waterproofing solution. The specification should therefore consider the complete system rather than focusing on the cost of the resin or coating alone.
4. The details
The main roof area is often the easiest part of a waterproofing project.
It’s the details that require greater consideration. Upstands, outlets, penetrations, corners, gutters, and changes in direction can all present potential weak points if they aren’t properly prepared and waterproofed.
A good liquid waterproofing system should provide a reliable method of detailing these areas, allowing the waterproofing to form a continuous, seamless layer across the roof.
5. The whole-life solution
Finally, consider what the building owner needs from the roof.
The lowest initial price doesn’t necessarily represent the best value over the life of the roof.
Consider the expected service life, guarantee, maintenance requirements, installation time, disruption to the building, and the quality of the installation.
A properly specified and professionally installed system should be considered a complete roofing solution rather than simply a coating.
The right system starts with the right specification
Liquid waterproofing can provide a highly effective solution for refurbishment projects, but successful results depend on much more than the product itself.
Understanding the substrate, application conditions, reinforcement, detailing, and expected service life is essential.
Choosing the right liquid waterproofing system isn’t just about what goes on the roof. It’s about choosing the right system for the roof you are working with. If you are an LRS Approved Installer we can assist you with your specification.
Contact our team to find out which LRS cold applied liquid waterproofing system would be suitable for your next project 01948 841877 [email protected]