Does using 2 Barriers together stack?

[Glurp]

My guild has run into the problem of having 2 disc priests tonight and neither know how to play holy. We're up to HM Spine and I'm wondering if using 2 Barriers at the same time will stack at all.
eg:

100k damage hit with 2 barriers becomes a 50k hit. (25% reduction from each barrier)
or 100k damage hit with 2 barriers becomes 56.25k hit. (25% reduction = 75k. 25% reduction of 75k = 56.25k)
or would only 1 barrier take effect and it stays a 75k hit.

[Evrx]

The damage reduction is multiplicative. In the case you described, you would get 56.25k (assuming no other damage reduction).

[Deleted]

they dont stack, you will only get the benefit from 1 barrier
so just rotate them rather than stack them

[Netherspark]

I would think that the first barrier would reduce the damage by 25%, then the 2nd barrier would reduce the remaining 75k damage by 25%.

Most damage reduction tends to work that way.

[Brilynn]

Since HM Spine has 2 pops just use one barrier on either one...

[Owltoid]

They don't stack. I multibox priests and used to throw up four of them before they were changed. The old barrier used to stack (the one that just absorbed damage) and that was nice. The new one sucks for multiboxing