Your plans to insulate a cottage are similar to what a lot of people are aiming to do these days.
How to insulate floor of cottage.
Instead of your current plan i d fasten then to the underside of the subfloor between floor joists.
Layer of rigid foam.
According to the 2012 irc the minimum r value for floor assemblies is r 13 in zones 1 and 2 r 19 in zones 3 and 4 r 30 in zones 5 and 6 and r 38 in zones 7 and 9.
Adding insulation mitigates the problem but there are some considerations to keep in mind.
Resisting animal invasion is the reason why.
Lots of people asking if they could use this in the walls and ceiling.
For the sake of simplicity we will break down the primary and secondary equipment list that s necessary.
If you want to insulate a floor assembly by leaving the joist bays empty and installing rigid foam on the underside of the joists here are a few things to keep in mind.
These stiff boards are placed close together on top of the floor joists underneath the home.
An uninsulated floor allows heat to escape making the house less energy efficient.
A pier and beam home built on top of sturdy supports typically has an open crawl space between the floor of the house and the earth.
My plan is to use the combination of air permeable insulation and rigid foam you described on the interior and a 1 2 in.
Insulating a cold cottage floor.
There are two schools of thought regarding the underside of the subfloor.
As a larger portion of the population heads into retirement the cottage is looking pretty good as a year round home.
Once in place secure the boards with either insulation tape or caulking.
Here are four options to insulate a home with a pier and beam foundation.
You could insulate the floor joists using 9 1 2 inch thick r30 faced batt insulation held in place with insulation supports i e galvanized chisel pointed wires in various lengths for use between 16 or 24 inch on center joists and available at your local home center.
Needless to say there are a few things you ll need to get started on with the log cabin floor insulation.
There is also little in terms of a vapor barrier.
This makes a huge difference to the warmth of the floor and the insulation is safe from vermin.
The very best way to insulate a floor over a crawlspace is from above with two inches of extruded polystyrene foam placed over the floor inside then a new 5 8 plywood subfloor added on top.