Adequate insulation on the roof and walls and floors to the ceiling, cap and whenIMASHOU with change. The fully renovated and re-finishing the floorGASHI, you can redo the wiring. However, interior walls and ceiling, the window changes, you may do when the entire renovation. You can change size. If the insulation double glass windows and is significantly improved. We have to stop to limit the overall impact on pillar and isI. To dismantle the wall, leaving the frame, contact the company.