How to insulate a really old room starting from scratch
Hello Fellow Old House Dwellers,
I opened a giant can of worms (metaphorically speaking) and now I am not sure how to proceed in cleaning up the mess...
My house has a little enclosed 4x8 porch at the back (main) entrance.
The previous owners had vinyl sided the INTERIOR of this little uninsulated room. We lived with it that way for many years.
Now that our family has grown, we hoped to better insulate the space, run some heat, and convert it into a much-needed mudroom. Currently nobody wants to leave their shoes and coats in there because they get cold, and in the winter the frozen mittens and boots stay frozen.
Here is where we are now:
We removed the vinyl siding and underneath it was just some foam board. Only one wall was insulated with fiberglass, and probably not correctly.
In addition to the lack of insulation (which we can fix) I'm not sure there is anything much standing between me and the great outdoors other than the mis-matched, gapped boards!
SO do we tyvek over the whole thing, gaps and all?
Try to find every gap and fill them, then use fiberglass?
Spray foam over all of it?
Give up on the dream of heat and just slap paneling over the gappy boards?
I am in WAY over my head and don't know how to get out!
Here is a link that might be useful: Porch Mess Photos