Jet-Seal subscribes to a premium weather forecasting service. But, as we all know even using the most advanced data, forecasting the weather is no more than an educated guess. Typically, after an hour or two, rain won’t adversely affect the sealer. If a shower washes away any sealer, Jet-Seal will touch-up or re-seal, at no additional cost, keeping the customer’s best interest in mind. We will do our best not to compromise the integrity of the work. We cannot however, be responsible for any damage that might occur due to rain.