Removal would be the best way to adequately air seal the attic floor so moving the air and thermal boundary to the roof line is the better option.
Flooring options for unconditioned air.
Now that we have pinned down what a sunroom is we can talk about the best flooring for you to put into it.
But this direct installation will result in a floor that s cold underfoot.
Lvf installation that occurs over an unconditioned crawl space especially in warmer more humid climates can significantly slow down vapor under the floor and increase the risk of condensation.
Calculate the amount and determine the r value of the insulation you will need.
The result can be bubbling warping or cupping of the finished flooring and even cause damage to the subfloor.
Many basement flooring materials like paint epoxy tile and rubber flooring for example can go down directly over the basement s original poured concrete floor as long as the concrete is in good condition.
Consult a structural engineer before removing.
We are now finishing an 18x18 foot addition that has a crawl space underneath.
Carefully air seal all gaps between the garage and the conditioned space above and the garage and the outdoors the rim band joist for example.
The most common types of floors that have to be insulated and air sealed include cantilevered floors floors over garages and floors above unconditioned crawl spaces.
The result can be bubbling warping or cupping of the finished flooring and even cause damage to the subfloor.
An unconditioned space is not heated or cooled so it s the same temperature roughly as outdoor air.
A semi conditioned space is not conditioned to the same degree as indoor air but it s not as cold or hot as outdoor air.
Your choice from the available options has to keep the fact that your sunroom will likely be both hotter and colder than the other rooms in your house.
Lvf installation that occurs over an unconditioned crawl space especially in warmer more humid climates can significantly slow down vapor under the floor and increase the risk of condensation.
Different sunrooms will require different flooring options.
Unconditioned and semi conditioned spaces are outside the living space.
If existing flooring is located perpendicular to the ridge and attached to the framing if may have been installed to resist roof thrust.
Our three season cabin is on the north shore of lake michigan in the upper peninsula of michigan.