"There has been a request from Wales that in the interest of the quality of the game and the very poor weather forecast that the roof be closed", said Schmidt.
The Ireland coach does not have to make up his mind until today, but he pointed out that, when Ireland agreed to close the roof two seasons ago, the pitch was watered anyway.
Ireland still should have the final say on the roof, but Schmidt refused to be drawn, simply insisting his team would cope one way or another.
"It's very much part of the game".
Ireland head coach Joe Schmidt said that whatever decision the Six Nations reach regarding whether the Cardiff venue is open or closed, his team will adapt.
When it was put to Schmidt that normally the visitors would be asked to decide on the roof, Schmidt replied: "Yes, normally, normally". There's a great deal of urgency about what we want to do and the point we want to prove. I am sure the crowd will help Wales overcome that tiredness, but it's going to be a great game.
Eddie Jones has ramped up the pressure on Wales ahead of their attempt to win a Six Nations grand slam by claiming that Warren Gatland's side are "looking tired" and will face an Ireland team who are "peaking" in Cardiff tomorrow.
Gatland believes Wales are fitter than any team in the championship.
"Often with teams you get one which wants it just that little bit more and that's the position we've been in in the past". We would be happy enough if it's open. We'll adapt to whatever conditions the game is played in.
If it's closed and wet, we might as well have the roof open and let the rain come in. If the Six Nations decide that it's going to be closed, then we'll play in those conditions. If they decide that it's open, we'll play in those conditions.
"For us, I think, the last time it was closed, we arrived there and there was a lot said about making it good for spectators". It was quite evident in the last game that their relationship was stronger than it has been for a while.
"So that probably enters into our minds about which closed is it going to be?" Is it going to be closed and wet, or is it going to be closed and dry?
Gatland says Wales have a habit of delivering on the big occasion.
"We've worked in the down weeks and we've trained as hard as any team I've seen", said Gatland.