Applying roof coating in the rain can be a tricky task. It is important to take the necessary precautions to ensure that the coating is applied correctly and that the warranty on the product is not voided. To do this, it is best to use a firm step when applying the coating and to stop frequently to measure the thickness of the wet film with a wet film gauge. When using Acu-Shield, for example, the thickness of the wet film should be a minimum of 20 thousandths of an inch wet for each layer, and each layer should cure for 24 to 48 hours.
To ensure that the roof covering works at its best for the next few years, it is essential to properly prepare the roof before applying any coating. If you are unsure about how to apply roof coating in the rain, it is best to consult an expert. They will be able to provide you with advice on how to apply the coating correctly and safely. They can also help you determine if your roof is suitable for coating and if it needs any additional preparation before application.