In some climates it's wise to bring the outdoors in. Just be careful about lighting the grill with the doors closed.
No need for lightweight materials in this treehouse, I'm sure the tree can take it.
Go on through, enjoy the bureaucratic nightmare that is the afterlife.
You try to push nature out of the way and it comes bursting right through your damn walls.
This is the equivalent to the brick wall for the laziest comics. You can't even call it stand-up anymore.