Water, water everywhere!

[randynavarro]

The space for the HRV is above the bathroom in a drop ceiling...? Which rooms can the HRV ducts access from there, and are you going to have to go in/out through the roof for the intake/exhaust?

Don't make me post pictures! The ceiling is "dropped" but it's stick framed and drywalled, not the conventional acoustical ceiling. Essentially, it's a 7' x 10' attic over the bathroom only.

I won't be able to hit all the rooms but will rely on (probably) 3 registers - one oriented to the master bedroom, one toward the bedroom hallway and the last oriented toward (almost) the entire kitchen/living room. The 4th wall is the exterior wall.

Yes I'll need to use the roof for inlet and outlet. I ain't afraid of no stinkin' roof penetrations! I've got TPO and heat welding is easy and can be pretty foolproof if lapped and counter-lapped correctly.

Thanks again everyone for the input and attention.