I originally put in accesses to the crawlspace. Two doors in the pantry (so we could lower food into that space and use it as a cold storage), and one at the bottom of the stairs (where I had originally envisioned putting in our solar batteries, but then lost my nerve at the notion of explosive gasses accumulating while charging).
Now that I’m no longer storing batteries indoors, I have finally realized just how much cold air was leaking out around the edges of the door. I decided that sealing it up would be the best option.
I assembled a piece of plywood that would more than cover the hole underneath, a length of two by four to create a new “joist” to attach the lid of the access to so that it would be extra firm, some spray foam and stone wool insulation.
First of all I measured and cut and installed the joist.
|It’s an older joist, but it checks out.|
Then I cursed my foolishness when I realized that the plywood I had cut needed to fit through the hole diagonally, and with the joist in place, I couldn’t get it into the crawlspace. So…
I removed the joist.
I put the plywood down below, hopped into the crawlspace, and screwed the plywood to the bottom of the access.
I came up in the pantry, dusted off and then returned to the bottom of the stairs.
I reinstalled my joist, and then used my spray foam around the edge of the plywood. Unfortunately my foam ran out surprisingly quickly. So I asked Donna to bring me more as she was in the city with Kenny at the Countdown Escape Room.
|A disappointingly small amount of foam from the first can.|
|Still, I can install the joist while waiting.|
When she returned, I filled in more foam under the outside edge.
|This is helping!|
|This looks a bit better. Can you believe I thought I’d fill the whole space?!|
Then I added the stone wool.
|This should help to keep things a bit less draughty and cold!|
Finally I put the lid back on, and countersunk several screws into it to hold it firmly down. No more draughts!
Eventually I plan on laying a new floor on top of everything, so that should cover up any cosmetic issues.