Melbourne Renegades captain Finch's strike off Hobart's Doug Bollinger on Wednesday night was ruled a dead-ball after it struck the frame hanging underneath the fixed part of the Etihad roof.

BBL manager Anthony Everard said while umpires were correct to have refused Finch any runs on Wednesday night, the incident warranted a re-write of the rules.

As of Saturday night's Renegades-Brisbane match the outcome will depend on whether in future instances the ball strikes "between the retractable part [of the roof], which actually sits within the field of play, and the retractable part, which sits outside it". If the roof was closed and the ball strikes the retractable zone a dead-ball will be called, with a six for any other part of the roof structure.

"We want to try and encourage big hits and from the perspective of the fans every indicator was that that should've been a six," Everard said. "We think it is a more appropriate ruling that rewards the type of shots that Aaron Finch hit the other night."

Renegades coach Simon Helmot admitted he was "filthy" at the time of the incident but described the revised rule as "a very sensible one".

"I reckon if that wasn't a dead ball it would've been the largest six of the competition!" Helmot said.