What is the R-value of blue foam board?
5.0 per inch
STYROFOAM extruded polystyrene insulation is rated at an R-value of 5.0 per inch at 75°F.
Is blue Board good for insulation?
DuPont Styrofoam™ Blue Board is a cost effective insulation that can be used in a wide variety of applications, including foundation walls, under siding and exterior sheathing, and between wall studs. Blue board needs to be covered with a thermal barrier on the inside or with siding or other covering to the outside.
What is the blue insulation called?
DuPont Styrofoam™ Insulation (Blue Board) is a nonstructural, rigid board insulation manufactured of Extruded Polystyrene Foam (XPS). Blue Board can be used both on exterior and interior walls to give you a continuous insulation barrier that can increase effective R-value of the wall by up to 20%.
Is fanfold insulation worth?
However, if you want to improve the energy efficiency of your home in addition to having some protection from moisture, then exterior fanfold insulation will likely do the job. Both options cost around the same, so it really just depends on what issues you are trying to solve.
Which foam board insulation is best?
Polyisocyanurate
Polyisocyanurate: Known as polyiso for short, polyisocyanurate foam has the highest R-value per inch (R-6.5 to R-6.8) of any rigid insulation.
Does Blueboard need waterproofing?
It’s a type of drywall plaster that can protect against scrapes and dents when used alone. Blue board may also conceal seams or joints between wall panels. It’s not waterproof or water-resistant, so it could potentially be destroyed to do this.
When should I use Blueboard?
Blue board is used for veneer plastering, and the surface paper has special absorption qualities. It has a high water and mold resistance and there are fewer steps involved in veneer plastering. Blue board drywall is not made for mud, tape, or paint.
Is blue foam waterproof?
Despite not being fully waterproof, styrofoam is non-hygroscopic, which means that it doesn’t absorb moisture from the air. Instead, it’ll only absorb water and moisture that comes in direct contact with it.
Can I put fanfold insulation over Tyvek?
The No-Choice Option Of course, you can always elect to put both Tyvek® HomeWrap® and exterior fanfold insulation on your home, giving it double protection without having to make the choice.
Is blue foam board waterproof?
Foam board insulation products are generally considered water and mold resistant but expanded polystyrene foam boards (EPS) have air bubbles that can collect moisture and become wet.
What’s the difference between blue board and green board?
Unlike the green board drywall, blue board works great in bathroom areas or places that get in contact with water. It is perfect for wet areas because it has great mold and water resistance qualities. It was not made for tape, mud or paint but it certainly does a good job at minimizing noise and offering low emissions.