We will be residing the cabin this summer and are wondering if adding 1 inch of xps rigid insulation on the exterior walls and walk out will cause any moisture issues.
How to insulate an exterior wall before siding.
Insulation in house exterior walls is one of the primary defenses against heat and energy loss.
Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level.
Failing to properly insulate your home can send your energy bill sky high but the best time to do it is before you finish the walls.
But insulated vinyl siding has one unique feature.
The lower level has 2 in of xps rigid foam insulation on the interior walls.
Contoured insulation that is permanently adhered to vinyl siding.
This will provide the house with a weather resistant barrier.
So if your house was built before insulating walls became standard you can potentially save a great deal of energy by insulating.
R value prevents heat loss by using conduction and is a measure of resistance to heat flow through a given.
Reflective foil insulation is also measured by it s r value.
Before you apply foam insulation install a house wrap on the sheathing.
In the end the decision to install house wrap under your siding is a personal one that you should make after discussing it with your contractor.
This type of insulation is most effective at preventing downward heat flow and is suitable for adequate spacing between the exterior walls of your home and the vinyl siding.
And just like flat insulating sheathings and fanfolds insulated siding also levels the wall for a better looking siding job.
How to insulate house walls from the outside.
The house was built conventionally with 2 4 walls fiberglass batt insulation fiberboard sheathing and hardboard siding.
Similar to blown in insulation insulated vinyl siding provides r value for improved energy efficiency.
If moisture gets behind the protective wrap the wrap allows the water to drain away and not soak into the wall component.
And here is a link to a product i mentioned earlier that may be a more simple solution it is an eps foam panel with a metal rail embedded in the center for exterior insulation that is used to attach it to the wall and that the strapping is then attached to for installing the siding.
It may look easy to go buy some packs of rigid insulation panels down at the.
Unfortunately however builders didn t insulate the walls of most homes built before the 1980s.
When you re living in a home with exterior insulation that.