Bud Selig is expected to decide personally that the roof of Minute Maid Park should be open for Game 3 of the World Series on Tuesday night. The Astros have kept the retractable roof shut tight for all five of their postseason games over the first two rounds. But during the World Series, it's MLB's call. And MLB officials have told the Astros they prefer the great outdoors -- tropical storms permitting. "That decision won't be made until [Tuesday]," MLB spokesman Pat Courtney said during Monday's off-day workouts. "We want to take into account what the weather conditions will be at the time. And we want to look into past practices -- what's normally happened in the past. Our understanding is that the policy has been that when it's 80 degrees and warmer, the roof is closed. But when it's cooler, it's open." The Astros, however, have had a different policy in October: When it's hot, the roof is closed. When it's cold, the roof is closed. And when it's in between, the roof is closed. To their credit, though, they haven't even tried to pretend that was done for any reason other than to increase their home-field advantage. "Bottom line," said manager Phil Garner on Monday, "is that I think that with it closed, it does generate a lot of noise and it's a lot of fun. And I think that we play for that. We play for that excitement, and that noise -- it helps a little bit."