Interesting BH With Styrofoam Boards Strapped Around It !!!

I was inspecting a piece of land in Karak Pahang recently.

The owner wanted to sell at a reasonable price.

My main aim was to build a BH and perhaps plant some trees like gaharu plants on it.

While doing the inspection I was given the opportunity to check my neighbours land with BHs.

One of the two have this special wall designed with foam strapping around it.

There is nothing wrong with it and if the installation helps to reduce the internal temperature then the BH should be doing well.

The issue here is that have the owner take into account the design on the BH overall.

Has he designed as such the internal temperature will be able to stay below 30*C?

This is not common but it is interesting.