Do I need to give the master a red envelope to put cinnabar on the floor tile?

It is lucky to give the master a red envelope when laying the floor tiles and putting cinnabar. Putting coins when laying railing stones is a custom handed down from ancient times. Putting copper coins in ancient times, but now putting cinnabar at the gate can protect the house from evil spirits, have the effect of making money and prevent foreign evil spirits from invading the house. This answer is for reference only. Don't be blindly superstitious.