Constructs- are breath weapons considered magic?

[Magemakeboom]

With regards to a constructs immunity to magic, does a creatures breath weapon affect a construct normally or would it be nulled due to their immunity to magic? I am curious since a breath weapon does not function in an area of antimagic. I came across this question last game I ran, and was hoping to find a definite answer.

[Flickerdart]

With regards to a constructs immunity to magic, does a creatures breath weapon affect a construct normally or would it be nulled due to their immunity to magic? I am curious since a breath weapon does not function in an area of antimagic. I came across this question last game I ran, and was hoping to find a definite answer.

Immunity to magic only affects things that care about spell resistance. Breath weapons don't fall in that category.

[OldTrees1]

Magic Immunity in 3.5 means SR infinity. Since Breath weapons are not normally subject to SR, they bypass Magic Immunity

[Magemakeboom]

Fantastic, thanks for the clarification!

[KillianHawkeye]

For completeness, I'll note that breath weapons are supernatural abilities unless noted otherwise. Supernatural abilities are not subject to spell resistance.