The problem presented was a staircase that was too steep. There was not enough space to extend the staircase into the basement, so a platform was added to make the stairs easier to climb.
A really efficient and effective way to insulate attics is with spray foam. It completely seals the entire space and doesn’t allow for heat to escape. We’ve started calling these attics The Igloos.
The process of finishing a basement, from adding studs to insulation, which helps seal one of the biggest culprits in a heat loosing house.