YouTube - MONSTER MACHINE

YouTube - YMCA 385 Demolition

This is how we demo 2 story buildings:
The roof;
YouTube - Demolition of a old warehouse

outside facade:
YouTube - Demolition of concrete building

concrete buuilding structure:
YouTube - Demolition of concrete building in Laihia

before we start the demolition we take out everything that is resonable to sort out, sometimes by hand or most of the time with small machines.

interior removal with bobcats and robots:
YouTube - Bobcat 463 stripping floor mat
YouTube - Wall buster on Bobcat 463
YouTube - The Roof Buster
YouTube - Amarillo Vaasa kitchen demolition
YouTube - Demolition Robot in restaurant Amarillo Vaasa
YouTube - Epoxy removal in Amarillo, Vaasa

sorting with bobcats:
YouTube - Bobcat 463 with grapple bucket
YouTube - Bobcat 463 with bucket
YouTube - Bobcat 763 pushing a plaster pile
YouTube - Bobcat 763 with grapple bucket

the things that usually is good to take out, to make the heavy demolition more cost efficient is:
-asbestos or any other problem wastes
-plaster and wooden walls
-glass (windovs etc)
-the interior
-floor mats
-copper piping and electrical stuff
-insulation if possible with reasonable work effort

there is no reason to take out brick or concrete walls, unless its required to make a safe demolition work. brick and concrete goes to the crusher any way, to make a good final product it's necesarry to take out most of the other building materials first.
also steel piping is stupid to cut out with small machines, they are easily sorted out with a concrete cutter, pulveriser or grapple. same goes for metall columns, because they can alos be a part of the bearing structure.

as far as your question goes no I dont think ur out of spec