I am in the process of installing staple-up radiant heat in my
unfinished basemnt (the first floor above the basement will be heated).
One place in my basement ceiling has joist bays that are around 7"
wide. This is because of several doubled-up floor joists that are used
to support first floor closet walls.
What is the recommended way to run radiant pex in narrow joist bays?
The 3/8 pex I am using can do 8" turns, which works perfectly in
standard joist bays that are defined by 16 oc joists. But, this does
not get me very far in 7" or thereabouts bays.
One solution is to just skip the narrow bays. This would not be a
total loss, but I'd prefer not to do this. The first floor closets
supported by the doubled-up joists do not span entire first floor
rooms. So, by skipping the narrow bays I would leave some cold spots
in the first floor.