Difference between faced and unfaced insulation
| Faced Insulation | Unfaced Insulation |
| Includes a vapor retarder | Doesn’t include a vapor retarder |
| Provides moisture resistance | Doesn’t provide moisture resistance |
| Applied in exterior walls and attics | Applied in interior walls and floors |
| Costs more | Costs less |
Should I use faced or unfaced insulation in basement?
You should only use faced insulation as the first layer of insulation. The Kraft paper itself is highly flammable. To make things safe, cover your unfaced insulation with drywall to prevent the risk of a fire. However, unfaced insulation can significantly reduce the risk of mold, mildew, or moisture damage in your house.
When to use unfaced fiberglass insulation?
Use unfaced insulation if you are adding insulation to your attic or to place between floors when the living space is above and below. Unfaced is also your best choice for soundproofing interior walls.
Is friction fit insulation faced or unfaced?
While faced insulation is stapled to the wall studs, unfaced insulation fit in wall cavities by friction. It is held in place by pressure or a friction fit between studs, joists, or rafters. Insulation near the chimney and fireplace should be unfaced and non-combustible.
What does faced mean with insulation?
What is Faced Insulation? Faced insulation is a term used to describe a type of roll or batt insulation that has a facing layer on it. The purpose of this layer is to protect against moisture and humidity, and it acts as a barrier to vapors as well.
When should you use unfaced insulation?
Unfaced insulation is great for new construction, remodels, walls, floors, ceilings, basements, attics and crawlspaces. It's best used for interior wall applications that do not face the outside and also in rooms that don't need moisture control, like living rooms, dining rooms and studies.
Should I use faced or unfaced insulation?
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.
What is the purpose of faced insulation?
Faced insulation has a vapor barrier or a vapor retarder (the facing) that helps prevent moisture from moving from one space to another. The facing also helps protect the surface, hold the insulation together and fasten the material to building components.
Is it OK to use faced insulation in attic?
Faced insulation is a thermal insulation type with a vapor-resistant layer attached to one side. It is commonly used in attic spaces, as the vapor barrier helps to prevent moisture from condensing on the underside of the roof deck and ceiling joists.
Does it matter if insulation is faced?
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 you need vapor barrier with faced insulation?
Since vapor barriers are only additional protection and not required to finish faced insulation, they are not always necessary. In fact, in some parts of the United States, it is better to not add vapor barriers as they can do more damage than good to your insulation.
What insulation fits in 2x4 walls?
Insulation for 2x4 Walls In most wall applications, you will use R-13 or R-15 kraft-faced fiberglass insulation rolls for these two-by-four stud walls. While rated differently, these two types of insulation are close enough in thickness that they can both fit into modern two-by-four wall systems.
Does faced insulation need to be stapled?
Use enough staples to hold the insulation firmly in place (about every 8") and avoid gaps and “fishmouths” between the flanges and framing.
What insulation is needed for exterior walls?
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. See the Department of Energy's (DOE) ranges for recommended levels of insulation below.
What is the best insulation to use in your attic?
If you check with the North American Insulation Manufacturers Association, they'll assure you that fiberglass or mineral wool is definitely your best choice for attic insulation.
Which is better R19 or R30 insulation?
The bigger the R value, the better the insulation is at slowing down the heat transfer. So R19 is better insulation than R13, and R30 is better than R19. The larger the R value, the better the insulation value.
Should I insulate my attic floor or ceiling?
The floor wins every time. Insulating the floor is standard practice for an unfinished attic space. The exception to this rule takes place when families opt to convert an unfinished attic space into something usable or livable.
Should I use faced or unfaced insulation in basement?
With its moisture-resistance properties, faced insulation works better for basements. However, you can install unfaced insulation on top of it for more protection. Even with varying features, both work effectively in regulating heat transfer within your home.
What insulation fits in 2x4 walls?
Insulation for 2x4 Walls In most wall applications, you will use R-13 or R-15 kraft-faced fiberglass insulation rolls for these two-by-four stud walls. While rated differently, these two types of insulation are close enough in thickness that they can both fit into modern two-by-four wall systems.
Do you put insulation over or under wires?
It is best just to lay the insulation gently alongside the wires, and insulation between the joists of the attic. In many cases, people think that you can't put insulation around a junction box, but you can! It has to be fiberglass insulation and it will be okay as long as the box isn't a heat source.
What insulation should I use for exterior walls?
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.
Why use faced insulation over unfaced insulation?
DIYers looking for a way to make home insulation easier should consider using faced insulation over unfaced insulation because typically faced insulation is significantly 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.
How much does faced insulation cost?
There is a minor cost difference between faced and unfaced insulation. On average, faced insulation costs about $0.50 to $2 per square foot of wall or ceiling. Unfaced insulation costs about $0.50 to $1.75 per square foot. The modest difference between them indicates that faced insulation costs about $0.10 to $0.25 more per square foot than unfaced insulation, which is likely attributed to the vapor barrier. This slight increase in cost shouldn’t impact minor upgrades, though if you need to insulate the whole home or even multiple properties, the price difference may affect your decision.
What is the difference between faced and unfaced insulation?
The main difference between faced and unfaced insulation is that faced insulation typically has a paper vapor barrier or retarder attached to one side of the insulation. The purpose of the paper vapor barrier is to block moisture from permeating the walls and ceilings of the home. This is especially useful in humid locations, like coastal cities.
Why do we need insulation?
Homes require insulation to help regulate the flow of heat through the walls and ceiling. By slowing the transmission of heat through the walls, the home can remain warm in the winter and cool in the summer, despite the temperature outdoors. This layer is also useful for noise insulation so that you don’t hear everything going on outside. Some insulation can also help block moisture from entering the home, which is a benefit for homes in coastal regions and areas that get a lot of rain. However, there are significant differences with faced vs. unfaced insulation, so it’s important to know what type of insulation you are installing or replacing to ensure you select the best insulation for the home.
Can you stack unfaced insulation?
If you have a layer of unfaced insulation installed you can stack another layer of unfaced insulation without issue.
Does unfaced insulation have cohesive strength?
Unfaced insulation does not have the same cohesive strength, so it’s more susceptible to tearing during installation. Additionally, staples don’t work well with unfaced insulation, so the installer needs to rely on the insulation to cling to the wall or ceiling. Some installers will add a plastic vapor barrier over unfaced insulation to both block out moisture and help secure the insulation to the target surface.
Is unfaced insulation combustible?
One of the benefits of using unfaced insulation whenever possible is that it is typically considered to be a non-combustible material. It can actually help reduce the chance of fire by providing a barrier between the interior wall and the exterior wall that slows the spread of flames or stops them entirely.
What is R-Value?
Here’s where that comes in. The R-value measures how well a particular insulation prevents heat loss. High R-values mean better insulating properties.
Why is unfaced insulation so hard to install?
Unfaced insulation is also more challenging to install due to the absence of a facing. There is no unifying factor, so it can be difficult to handle and apply evenly.
What is the best insulation for an already insulated area?
Unfaced insulation is your best option when you’re adding insulation to an already insulated area. That way, you’re not creating a double moisture barrier that will seal moisture in rather than keeping it out.
Why use unfaced insulation?
Unfaced insulation comes with its own benefits. Because it lacks a facing, it’s ideal if you’re looking to add more insulation to an area of your home. You don’t have to worry about trapping moisture and causing additional problems for yourself later.
What is unfaced insulation made of?
Like faced installation, unfaced insulation is also typically made from fiberglass. It lacks the facing, though, meaning that there’s no vapor barrier.
Why is facing insulation bad?
Faced insulation also poses a problem if you’re adding new insulation to an area where old insulation is already present. If the old insulation also has a facing acting as a vapor barrier, moisture can become trapped between the two and damage will occur .
What is the difference between faced and unfaced insulation?
The short answer to that question is that faced insulation has a layer made of paper or another material, while unfaced insulation does not. The difference this one simple factor makes is surprising, so keep reading for the long answer and more information to help you make the best decision for your home.
What is the difference between face and unfaced insulation?
Faced insulation should be used to insulate the roof of the attic while unfaced insulation can be used to insulate the attic floor. Correctly installing both faced and unfaced installation in the attic will increase the energy efficiency of the home.
Why do you need face and unfaced insulation?
Faced and unfaced insulation play different roles in the insulation of a house and must be applied correctly to limit heat loss, sound, and vapor transfer. Faced insulation used with the vapor barrier facing the wrong way can lead to moisture trapped, leading to mold growth and rot of the home’s wooden structure.
What is the best insulation for a garage?
Faced insulation is best for outer walls, attic roofs, garages, bathrooms, and kitchen walls. Unfaced insulation is recommended on all inner walls and also as an additional layer of insulation over faced insulation .
Why should exterior walls be insulated?
Exterior walls should be insulated with faced insulation to prevent moisture from ruining the framework of the house. Faced insulation with the kraft paper on the inside should be used, and care should be taken that it fits snugly between the wooden framework of the house.
Where should kraft paper be used to insulate?
For example, the kraft paper should face the inside of the basement or crawl space when insulating the walls.
When applying the second layer of insulation, unfaced insulation is sufficient?
When applying the second layer of insulation, unfaced insulation is sufficient. Another layer of faced insulation might trap moisture between the two layers, and that will cause rot.
Where to use faced insulation?
However, the usual strategy that is followed is to use faced insulation in outer walls and unfaced insulation on inner walls and where there is only a slight temperature difference between an upper and lower room, like in an attic.
What is a facing in drywall?
"Facing" is a layer attached to roll or batt insulation as a vapor barrier to help protect the living space from excess humidity or moisture. It is basically designed to keep drywall dry. However, there are also insulations like spray-foam insulation that is designed to be moisture retardant anyway, when facing isn't required.
What insulation is stand alone?
Kinds of insulation that don't involve facing of any sort include spray foam, blown-in insulation and rigid foam boards. These products can be stand-alone if they have sufficient R rating, but sometimes they are used in conjunction to offer better protection.
Why is insulation important?
Insulation is so important when finishing a renovation or a home. When done right, insulation will improve your energy rating, keeping you warm in the winter and cool in the summer. If it is done poorly, your seasonal comfort zones will be anything but comfortable. Part of getting it right means knowing when to use faced or unfaced insulation in ...
What is face insulation?
Faced insulation has flanges on the outside of the batt that need to be stapled to the wall studs and joists. That's how the barrier is made effective. Without stapling, moisture still has a path into the room. It's also important that there be no air pockets in the insulation, as this is where the cold spots spring up in rooms.
Why is facing important?
With the facing being a moisture barrier on insulation, it's important to only install one layer of faced insulation. Multiple layers of facing inside the wall can trap moisture between them, which can cause big problems since moisture always needs somewhere to go. Once the facing is up, it needs drywall over it because facing is generally flammable. Examples of facing materials include kraft paper, foil kraft paper, vinyl and aluminum foil.
When is batts or rolls of unfaced insulation used?
When it's batts or rolls of unfaced insulation, it's meant to be used to add R rating values but should be installed behind the faced insulation.
Is unfaced insulation bad?
Insulation being unfaced doesn't mean it's a bad choice; it means ensuring that it's the right product for your space. Unfaced batt insulation is often used for beefing up the R rating, with the R rating being the insulation rating scale that says how much or how effective insulation needs to be in that space.
What is Unfaced Insulation?
Unfaced insulation is insulation that lacks that thin protective outer layer described above.
Why do you need to staple face insulation?
Faced insulation is made in rolls or batts and needs to be stapled to the wall studs and/or joists to guarantee its adequate protection against moisture.
What is the best way to insulate a wall?
Foam insulation, which is often used to insulate walls, is among the easiest to install as it is sprayed or injected into place with a machine, allowing you to fill tight spaces with ease. It also has moisture protection, so it is useful to prevent against damp and mold.
Why is insulation important in a home?
It improves the durability of your home. Walls that are protected with insulation have less exposure to bad weather and are therefore much less likely to deteriorate in the long term. It can minimize mold and condensation.
What is blanket insulation made of?
Blanket insulation, most commonly used in the installation of attics, tends to be made of fiberglass or sheep’s wool. It is sold in rolls, can be easily installed, and is among the cheaper options to insulate your home.
Why do we insulate our homes?
It will save you money. The most common reason families insulate their home is to reduce the costs of heating. As much as 35% of heat in your home is lost through the walls and another 25% is lost through the roof, so it is vital you insulate these to keep costs down. It improves the durability of your home.
Why use reflective attic insulation?
Reflective attic insulation is used most commonly in attics to reduce the costs of cooling a home in the summer.
What insulation do you use for facing?
Insulation batts which use Kraft paper, foil or plastic for facing come in various sizes, widths, and thickness. Most faced insulations are installed by face stapling, where the facing flanges are stapled into the framing edges. Some insulation batts which do not require stapling are attached by pressure fit. These products are usually of higher density, which helps hold them in place without the need for staples. However, they provide equal protection from thermal loss and moisture. Faced insulation batts that use Kraft paper should be kept unexposed as they are inflammable.
What is the difference between faced and unfaced batt insulation?
The main difference between faced and unfaced batt insulation, however, is that faced batt insulation has a “facing,” as the name implies. This facing is a layer of material added to one side of the batt in order to improve its moisture-control properties. The most commonly used facing materials are Kraft paper, foil, ...
How is unfaced insulation installed?
In contrast, unfaced insulation batts are usually installed by friction fitting. This means that the insulation is kept in place into the cavity space between framing edges by way of pressure or friction. Unfaced insulation is commonly used over existing insulation and they are installed perpendicularly to it to improve its R-value ...
Why is faced insulation more expensive than unfaced insulation?
Generally, faced insulation is slightly more expensive than unfaced insulation because of the extra materials used that make it a moisture barrier. The upside of paying more for faced insulation is that you don’t have to spend more money to add a vapor barrier to your insulation. The cost, however, still mostly depends on the R-rating ...
What is face insulation batts?
Purpose. Faced insulation batts are the kind of insulation you would want to use if you’re looking to add insulation into a space for the first time. This type of insulation is best for walls, ceilings, floors, and attics and primarily serves to keep your drywalls, flooring, and ceilings dry. The Kraft paper, foil or plastic adhered to ...
When to use unfaced insulation?
It is typically used when you want to add new insulation over an existing faced insulation, since you don’t want moisture to be trapped in between. Unfaced insulation is most recommended to be installed in attic floors or in between floors where both the top and bottom floors are living spaces. As mentioned, unfaced insulation is non-combustible ...
Which layer of insulation should be installed with the moisture barrier facing the home's living space?
The layer of insulation closest to the interior of the home should be the one with the moisture barrier, and it should be installed with the moisture barrier facing the home’s living space. For example, if you’re installing the insulation on the floor, then the facing must face upward. If you’re using it in your attic, the facing must face downward and so on.
Faced vs. Unfaced Insulation
When to Use Faced vs. Unfaced Insulation
- Faced and unfaced insulation both have circumstances in which they’re the best option. Faced insulation is generally used in places where insulation hasn’t been installed before. If you’re building a house, for example, or insulating an attic, crawl space or garage. We have mentioned it before, but it bears repeating. When you’re using faced insula...
What Is R-Value?
- Earlier, we mentioned that insulation could help make your home more energy-efficient. Here’s where that comes in. The R-value measures how well a particular insulation prevents heat loss. High R-values mean better insulating properties. Not everyone needs insulation with a high R-value, which the U.S. Department of Energy has already taken into consideration. They have divi…
Frequently Asked Questions
- We’ve covered a lot of information so far, but you might still have unanswered questions. We’re going to address a few of the most common.