Hi, I have installed new plasterboard ceiling with resilient bars and also finished plastering with Multi Finish. New plaster is smooth and nicely done by a professional last Saturday. He used scrim tape along the joists. Though, in some areas there is slight difference in colour on the plaster, like lines under the joints of the plasterboard, especially in a place where there was 3mm step between the joists (there was a metal beam so could not perfectly level the plasterboard at that place).
Do these lines appear only due to the difference in drying time of plaster along the plasterboard joists or it is an indication that a crack will appear later on?
Will it be wise to apply scrim tape again along the joists below the new plaster before decorating the ceiling?
Do these lines appear only due to the difference in drying time of plaster along the plasterboard joists or it is an indication that a crack will appear later on?
Will it be wise to apply scrim tape again along the joists below the new plaster before decorating the ceiling?