If you have a moisture meter, it should read below 15%. Alternatively, tape a one-foot square of plastic on the substrate overnight. If there is condensation under the plastic in the morning, it is too wet for application.
If you have a moisture meter, it should read below 15%. Alternatively, tape a one-foot square of plastic on the substrate overnight. If there is condensation under the plastic in the morning, it is too wet for application.