Adding insulation batting to the walls and floor of your three season porch can extend its usefulness during cold weather.
Insulating floor of 3 season porch.
However doing so will prevent cold air from seeping into the porch and may allow you to use the porch for a few weeks longer before winter arrives.
Make sure that you wear gloves.
This can be stapled up between the floor joists.
If you re looking to extend the use of your three season porch or even turn it into an all season porch you ll need to look at adding insulation.
Our contractor originally said he d add some lattice work between the bottom of the house and the ground but later said there was not enough space to work it in.
I was really surprised to see all the brand new insulation completely.
The job of insulating the floor is easier if there is room to crawl underneath but if there isn t it can still be done.
In terms of energy savings there isn t much benefit to insulating an unheated porch.
I looked under there today to see if i could come up with an idea for closing the gap to animals and debris.
That would include the ceiling walls and underneath the porch floor.
We just had a 3 season room built in place of our deck.
After insulation is installed no poly vapor barrier only kraft faced so that it is semi permeable go back with 3 4 t g advantec then your floor then baseshoe.
Basically you should be thinking about insulating the roof floor and walls to ensure the maximum benefit.
Roll out the fiberglass insulation sheets between the joists facing side up making sure it is snugly in place.
A contractor i hired to insulate under my 3 season porch floor has used regular pink insulation r 27 but it has fallen out four times so far now half of it is on the ground.
Also imo the radiant barrier is a waste of time and just reduces your insulation.
If it is above grade winter drafts will make the room too cold to use no matter how well the walls and ceiling are insulated.
Enclosed but uninsulated sitting areas are known as three season porches but if you live in a northern state cold weather can reduce that to two or even one and a half seasons.