The top set of beams will be the floor height of your treehouse.
Treehouse roof around tree.
You should never use a flat roof for a treehouse.
A properly sloped or pitched roof is much superior.
It was almost something out of a beatrix potter book.
Add spacers between the beams and the tree to allow movement.
These two boards will serve as a support beam for the rest of the structure.
To accommodate tree movement and growth allow gaps around any branches or trunks that penetrate the tree house.
If you are building a tree house you can frame a roof for it on your own.
This can strangle the tree.
The ideal roof is impervious to water but also needs to rapidly shed water so there is no chance of pools or damp patches building up.
A flat roof is the easiest to install and when built correctly is easy to maintain.
Don t restrict tree growth.
Don t constrict branches with rope straps or wire.
The treehouse was in a very very large oak tree.
The roof s primary role is of protection and so it is a good place to get right.
If your design calls for a flat roof try to introduce even a small slope of 3 5 so water cannot sit there.
Lag two sets of beams to the tree using a 3 4 diameter x 10 lag screw.
An extension cable from a pole mounted outlet provided power.
It had a gravity fed cistern from rain water for a water system and a wood stove.
The down side as you point out is that it is nearly impossible to seal the water from entering through these exit points.
Try to to drill the pilot holes as straight and level as possible.
Once the frame is square install your floor joist.
Next install the perimeter beams to the top set o beams and square them up using the 3 4 5 rule.
Be sure the tree is at least 12 inches in diameter.
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Leave gaps around the tree.
Follow the simple steps below to frame your own tree house roof.
Tree house around the trunk diy treehouse start by putting up two 8 foot long ledger boards on either side of the tree.