Here, 2005 (upper photo) vs. 2012. The structure is generally the same except for two differences, (a) now iron sheet roof, and (b) now bigger trees surrounding the treehouse.
The original, cogon roof vs. iron sheet. What damaged the cogon roof were first, rain water penetrating the lower layer since the trunk of the tree at the top gets bigger, allowing rainwater to seep in. And second, termites who climb up each day and each night. We remove them today, they're back tomorrow if not tonight.
See these fresh sprouting leaves right inside my treehouse. Since the tree is alive, small branches would sprout up especially during the rainy season.
Trusses (?) damaged as the tree's trunk gets bigger and taller.
The lower trunk is not rising much, more of getting bigger or fatter and wider,
Various poses over the past few years :-)