The shut-out was the first time that Blues had kept a clean sheet in some 20 games.
The full-back admitted that Tuesday's match at St. Andrew's may not have been the best spectacle for the fans, but at the same time he felt the visitors set out their stall for a draw.
"I thought defensively we looked quite solid as a team, not just the back four, but Jack as well," said Caddis. We’ve got to take the positives from it because it’s the first clean sheet in a long time.
"I don’t think it would have been great for the spectators to be honest because there weren’t too many chances. But that’s the kind of team you’re playing against with Sheffield Wednesday you know what you are going to get.
“They are a big physical team and it was there to see that that they went from back to front and used long throws and went for corners as well. They came here to do that and set up their stall to be tight and get a point and that’s what they did.”
Caddis continued: "It was weird combination because they’ve got big strong players, but they’ve got quick players as well and quite a few times they went wide and caused us a few problems. We had a very good chance with Ziggy when Burkey cut inside. I initially thought he was offside but the linesman has given a goal-kick rather than offside, but these things happen in football. It could have gone either way, but I think if I’m being honest a 0-0 was a fair result.
"Hopefully we can build on that and get another clean sheet on Saturday and obviously if we can keep clean sheets we have more chance of winning games. As a group I just think we were a lot stronger and hopefully we can build on that."
Lee Clark's side face another test of their character on Saturday when they travel to Peterborough United. The Posh ran rampant earlier in the week as they recorded an impressive 5-1 win away at Millwall. That result moved them off the bottom of the table into 23rd spot. They are now just six points behind Blues but have two games in hand.
"In this league a couple of wins gets you up," added the on-loan Swindon defender. "I think the last time I properly looked at the table was when we beat Nottingham Forest. I think the most important thing for us is we’ve got to look below rather than look above. At the end of the day we’ve had a lot of draws, but we've only had one defeat in seven which is not too bad.
"It's a big game on Saturday but every game in this league is tough. I’ve played 14 or 15 games and I can honestly say there has not been one easy game. But on our record I think we’re a better team away from home so hopefully we’ll do well."