Junkspace

In mega buildings such as shopping complex, there are massive spaces within the building. The interior spaces that are controlled in terms of condition are called "junkspace". Personally, I think junkspace can be both good and bad for the building. What is good about this junkspace is that when the space has been sealed off from the context and surrounded with interior elements instead, so the undesirable condition such as bad surroundings and weather can be got rid of. But on the other hand, in terms of architecture elements there is a context that works together with the building itself and by having the space sealed off from its exterior environment, the building would be isolated; no night/day or sunny/rainy/ snowy. In conclusion I think junkspace works functionally and works for solving problem of condition, but it does not go along well with how architecture should be