The primary choices for today s discussion are the floor insulation options you can find at your disposal.
How to insulate a cabin floor.
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.
When we built the addition to the cabin last year we skipped a few steps.
The two areas i would absolutely recommend insulating are your floor and roof.
Insulating your log cabin s floor can save up to 20 of your annual heating costs when fitted properly and combined with the finished floor.
But you will find insulating concrete as well.
Alternatively you could fill the cavity completely using r 38 faced batt insulation.
These are some of the basic options you will find to use as floor insulation for your log cabin.
I would also try to nudge you to insulate the roof as well.
This size of metal screen should be small enough to keep out nuisance animals such as mice.
Cover your insulation with 5 mm 1 4 hardware cloth.
Directly beneath the flooring and between the joists fit foil backed insulation boards for example 25mm or 50mm celotex a compressed foam material between silver foil.
Cover the walls with insulation from the sill plate to the plastic covered dirt floor.
Approximately 70 of heat escapes through the floor and roof it is therefore essential to insulate them well.
Insulating the floor log cabin flooring is made up of packs of tongue and groove boarding nailed to pressure treated bearers.
When you re using fiberglass batting insulation material run it about 6 inches or so onto the crawl space floor.
When we built the addition to the cabin last year we skipped a few steps.
Place the batts against the underside of the floor then cover with the hardware cloth securing it to the joists with a staple gun.
The air space above the 9 1 2 inch insulation in the 12 inch joist cavity will help provide a warm floor inside the cabin.
You may also be interested in this post on double glazing r and u values and log cabin thermal.
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.
The sill plate is the first piece of framing lumber and it runs on top of the crawl space wall.