Bees substitute Marcus Bean went the closest to opening the scoring in Saturday's League One clash at Griffin Park but neither side were able to make a telling contribution.
Slade said: "We were never really in any trouble and I don't think our keeper had a shot to save in anger.
"We caused them a few problems at the other end but it was a hard-earned point against a side who will do well in this division.
"All the points we win will be hard earned."
Source: Team_Talk