Yeah.

So if you imagine a two, uh, a thermal calculation of this, you have the steel frame with insulation in between, so the, the path of heat resistance through the insulation is much harder for heat to escape than through the steel.

So actually, the steel acts as a hot bridge.

If, like, winter, hot, warm inside, cold outside, you're losing a lot of heat through the steel.

So actually, the outside of the steel, the, where it touches the membrane or the board- Is warm ... is warm.

Okay.

So the risks of hot, humid air hitting that is- Interesting ... lower, technically.

... and you're punching them? [laughs]