QA

Quick Answer: When To Use Faced Insulation

When should you use faced insulation?

Faced, or the type with paper, is typically used in first-time applications, such as in walls, ceilings, floors, and in crawl spaces. Any time you use a faced insulation, the paper needs to be facing toward the living space. So in an attic the paper faces downward and in a crawl space, it faces upward.

Where is faced insulation required?

Kraft-faced insulation should be installed in exterior walls, exterior basement walls, and attic ceilings by pressing the product into the wall cavity with the paper side facing outward, towards the installer. The insulation should be snug in the cavity, but not compressed.

Does it matter if insulation is faced?

To be effective, the barrier’s reflective surface must always face an air space at least an inch thick and be installed shiny side up if laid on the attic floor, shiny side down if attached to the rafters. Tests show that a radiant barrier in an insulated attic can lower attic temperatures by as much as 30 degrees.

Is faced insulation better than Unfaced?

Faced insulation is easier to install. This is because the insulation is held together by the paper vapor barrier, allowing the faced insulation to be rolled, moved, and stapled without falling apart. Unfaced insulation does not have the same cohesive strength, so it’s more susceptible to tearing during installation.

Is it OK to use faced insulation in attic?

When installing between the roof rafters of finished attic spaces, you can use either faced or unfaced batting. When using insulation that has paper or plastic batting, that moisture barrier should face outward toward the attic space.

What’s the difference between faced and unfaced insulation board?

The Difference Between Faced And Unfaced Insulation Faced just means that kraft paper is attached to the insulation itself. The paper helps improve the sturdiness of the insulation so it doesn’t fall down as much. Unfaced insulation is just as good as faced, but it doesn’t have that paper attached to it.

Do I need faced or unfaced insulation in my attic?

Faced Insulation: If the attic doesn’t have any existing insulation, use faced insulation with the paper facing toward the heated living space. Unfaced Insulation: When adding more insulation to an attic that already has insulation, use unfaced insulation.

Should I use faced or unfaced insulation in basement?

Place faced insulation between the studs with the vapor retarder facing the interior of the room. For the band joist, use unfaced cut-to-fit pieces of insulation and place them snugly into the space.

Do you need faced insulation in exterior walls?

Unfaced means the insulation lacks a vapor retarder (paper or plastic facing). Kraft-faced insulation should be installed in exterior walls, exterior basement walls, and attic ceilings by pressing the product into the wall cavity with the paper side facing outward, towards the installer.

Should I use faced insulation in my basement?

Faced insulation is what needs to be used in basements and crawl spaces to minimize heat loss and entry of moisture. Basements and crawl spaces could be costing you unnecessary money. Soil, concrete, bricks, and cement conduct cold, and the cold air penetrate your house from the basement or crawl space.

Can you paint faced insulation?

If you want to paint foil-faced insulation, you must first employ the proper preparation techniques. The foil facing on insulation is nonporous, making it ill-suited for adhesion. Apply the paint in a particular way, or you may end up with subtle flaws in the finish coat.

What happens if insulation is installed backwards?

Insulation should have its paper side installed towards the inside of the home. So if it is installed upside down, the paper moisture barrier can actually keep moisture in-between the paper and the sub-flooring. This can lead to mold issues, as well as structural deterioration.

What insulation should I use in my ceiling?

Depending on where you live and the part of your home you’re insulating (walls, crawlspace, attic, etc.), you’ll need a different R-Value. Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces.

Can you put Poly over faced insulation?

More than likely, installing an additional layer of poly over kraft facing won’t cause any problems — it’s no more risky than if the wall had only unfaced batts and poly — and the risk of using poly on the interior is relatively low in a cold climate like New York’s.

Can you stack faced insulation?

Can you put faced insulation over faced insulation? No, faced insulation should not be added over existing insulation since the vapor retarder on top of or between layers of insulation can trap moisture.

What is the difference between R 13 and R 15 insulation?

The main differences between R13 vs R15 Insulation are: R15 insulation has good thermal resistance, whereas the thermal resistance of the R13 insulation is slightly lower. R13 insulation can block drafts in narrow spaces, whereas the R15 insulation is too bulky to fit in narrow spaces.

Does fiberglass insulation work if compressed?

When you compress fiber glass batt insulation, the R-value per inch goes up, but the overall R-value goes down because you have less inches or thickness of insulation. So, you don’t get the full R-value on the label, but the insulation still works perfectly well if all you’ve done is compress it.