Knowledge Builders

what is r38 insulation used for

by Telly Schiller III Published 3 years ago Updated 2 years ago
image

R38 blown insulation is used to fill the air cavity of your home. This increases insulation and can reduce energy costs even more than simply installing R30 in your attic space. By filling the air cavities, heat can’t transfer so easily from your living space to your attic and vice versa.

10¼ ” thick, R-38C EcoTouch® Thermal Batt insulation prevents moisture damage and help assure long roof life by providing 1" of ventilation air space between the insulation and roof deck.

Full Answer

How many inches of fiberglass insulation is r38?

8 rows · R25 to R38: R13 to R19: 3: R30 to R60: R25 to R38: R19 to R25: 4: R38 to R60: R38: R25 to R30: 5 to 8: R49 to R60: R38 to R49: R25 to R30: Wall Insulation - Whenever exterior siding is removed on an: Uninsulated wood-frame wall: Drill holes in the sheathing and blow insulation …

What is the thickness of are - 38 insulation?

Jan 13, 2022 · Rockwool is a mineral wool substance that is inorganic and can be used as thermal insulation in attics, wall cavities, and ceiling cavities. Rock wool applied to a depth or thickness of 13.8″ will attain an R-value of R38. It is usually made of rock, furnace slag, and various …

What is your 38 attic insulation?

Nov 26, 2011 · The type of heating system used is also considered in determining the best insulation for the home. The final variable is what part of the house is being insulated. Walls and attics do not carry the same legal requirements. R38 is a measurement of the thickness and …

How many inches of fiberglass is r38?

Apr 08, 2020 · R-38C EcoTouch® Thermal Batt insulation is intended to be friction- fit between wood rafters. In applications with irregular spaced rafters, cut the batts approximately ½ " …

image

Where do you use R38 insulation?

Easy to handle and pre-fabricated batts with a thickness or depth of 11.25″ will be needed to attain an R-value of R38. It is used in floors of crawlspaces and attics, supplying water-resistant insulation with no forming of mildew, fungi, or mold.Jan 13, 2022

Is R38 good for attic?

So, for your attic insulation, we have a minimum standard of R-38, and a recommended standard of R-49. R-Value is explained as thus: “the resistance, or strength of a material to slowing down the flow (movement) of heat”. Generally speaking, cellulose attic insulation doesn't care which way the heat is moving.Jul 6, 2021

Is R-38 insulation Good for attic?

Attic Insulation: Houses in a cold climate should have a minimum of R-49 in the attic, which is equivalent to approximately 16″ of fiberglass insulation. Warmer climates only require an R-38 or higher, or about 12″ or more.

What is the thickness of R-38 insulation?

The R-38 high-performance batts are 10˝ to 10-1/4˝ thick as opposed to stan- dard R-38 fiber glass insulation batts of 12˝.

Is R38 good insulation?

The thicker the insulation, the greater/higher it's R-value and performance. As of 2016, the standard building code for attic insulation in L.A., Orange, Ventura and surrounding counties is R-38. Back in the 1970's, when many of our homes were built, the code was R-19 and in the years to follow it was R-30.

How do you get a R38 on the ceiling?

An insulation value of R-38 is at the high end and requires a minimum thickness of 12 inches. R-value does not depend on a single layer of insulation. To achieve R-38, you can use two layers of R-19 or three layers of R-13, which give slightly higher thermal resistance.

What kind of insulation is R38?

Fiberglass Insulation
R38 - Fiberglass Insulation - Insulation - The Home Depot.

How deep is R38 blown insulation?

12.75”
Fiberglass Chart
R-ValueThicknessBags / 1000 Sq Ft
R4916.25”22.6
R4414.75”20.1
R3812.75”16.8
R3010.25”13.0
1 more row

What is the difference between R38 and R49?

A ceiling with an R-value of 38 lets through only 1/38 of the amount of energy per square foot that passes through that window, or about 2.6% of the energy; a ceiling with an R-value of 49 lets through only 1/49 of the amount of energy per square foot that passes through that window, or about 2.0 % of the energy.

How thick is r38 fiberglass?

10¼ ” thick, R-38C EcoTouch® Thermal Batt insulation prevents moisture damage and help assure long roof life by providing 1" of ventilation air space between the insulation and roof deck.

How many square feet is a roll of r38 insulation?

Owens Corning R- 38 Attic 42.67-sq ft Faced Fiberglass Batt Insulation (16-in W x 48-in L) Individual Pack 1 total-Piece.

What is R 30 insulation used for?

R30 insulation is the minimum insulation recommended for an Attic from climate zone 1 to 3, while it can be used in cathedral ceilings in all climate zones across the USA. It can be used as maximum insulation in climate zones 4 – 8 of the USA for floors.Jan 13, 2022

What is fiberglass insulation?

Fiberglass insulation is the fluffy pink bats that we usually seen in home improvement stores, and people would generally relate to that as typical insulation. However, fiberglass insulation is made out of 80% recycled glass and is naturally soundproof as well. Therefore, these fiberglass bats come in various R-values to insulate different parts of homes in all climate zones across the USA and Canada.

What is the R value of foam board?

Insulating with rigid sheets of foam board will require a thickness or depth of foam board between 9.5″ to 10.5″ to attain an R-value of R38. These rigid sheets of polystyrene or polyurethane are seldom used in residential buildings but are instead used in commercial buildings. They are used in conjunction with external cladding systems where continuous insulation code is required.

What is spray foam insulation?

Spray foam insulation is a robust, easy, and accurate method whereby homes can be insulated in a much shorter time than other insulation methods. There are two types available, each one of them fulfills a unique purpose, and care must be taken to use the right kind of spray foam for the purpose it is fabricated. Each type of spray foam has different depth or thickness requirements to reach an R-value of R38.

Why is insulation important in each climate zone?

Therefore, the logical conclusion to be drawn from this information is that insulation of the correct R-value should be used in each climate zone to maximize the home’s energy efficiency. Therefore, optimal insulation will ensure minimal heat loss due to thermal conductivity. The optimized insulation will adequately insulate your home from thermal conduction from the outside, resulting in less energy used for heating and a lower energy bill.

What size batts are available for fiberglass insulation?

The fiberglass insulation is available in 16″ and 24″ width batts. This allows the bats to snugly fit into the open spaces between the framing members with a measurement a little less than that of the bats. When installing the bat’s care should be taken not to compress the bats to fit inside the framing members. Compressing the bats will lower the R-value for the compressed area because the pores inside the material are reduced.

What is the blow action of spray foam?

The blow action is attained with a water base that allows more expansion, leading to thinner membranes and more porous foam.

Is foam insulation soundproof?

The lighter and less dense foam is not insulated against moisture and air, and therefore it doesn’t support the structure, is less soundproof, and can be penetrated by air and moisture . In the presence of air and moisture, mold growth can take place, and any odors will reach the surrounding spaces.

Why use R38 insulation?

Using R38 rated insulation is common because it is effective and typically inexpensive. You can line your ceilings and attic space with it and be protected from cold and heat regardless of the region you live in.

What is the best level of insulation for a house?

R38 is probably the most commonly recommended level of insulation. When you select insulation you have to base your decision on variables. Homes in different regions need different types and thicknesses of insulation in order to be effective. If you live in the Southern warmer areas you aren't quite as worried about maintaining heat in the winter but keeping it cool throughout the long, warm months. At the same time you can apply the opposite to homes in colder areas.

Where is insulation found in a house?

Gas, oil, and electric systems are all applicable to the rating and this is insulation typically found in the ceilings and attics.

Is R38 insulation needed for a mid range home?

Mid range homes that have hot summers and also have cold, although not frigid winters (Mid-Atlantic states) with electric, gas, or oil heat are generally considered well insulated with R38. These areas can depend on this level of insulation to keep the heat in during the cold snaps and keep the cool air inside during times of record heat. This is a standard requirement for all homes and buildings. While it is certainly possible to insulate more thoroughly it is not considered to be essential.

What is the R value of insulation?

R-Value is a measure of insulation's ability to resist heat flow. The higher the R-Value, the better the thermal performance of the insulation. The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.

Which is better R19 or R30?

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. This means you could use R38 insulation, and then add another layer of R13, for a total of R51….

How does insulation help your home?

Insulation material, when properly used, can make your home more comfortable and energy-efficient, and can significantly reduce heating and cooling bills throughout the year.

Why is insulation important?

Insulation is important because of its ability to reduce the amount of heat that flows between the inside and outside of your home. The ability of insulation material to reduce heat flow is called its R-value. The greater the R-value, the more this heat flow is reduced.

Do you need insulation when building a new home?

Building a new home offers more opportunities for properly installing insulation. Doing so requires you to know the places that need insulation and their recommended R-values. The R-values are based on both a region’s

Does Oak Ridge National Laboratory offer ZIP code insulation?

Building a new home offers more opportunities for properly installing insulation. Doing so requires you to know the places that need insulation and their recommended R-values. The R-values are based on both a region’s climate and the type of heating and cooling system installed. Oak Ridge National Laboratory offers a ZIP-Code Insulation Program, listed under Further Reading, to help deter- mine your R-value and cost estimates. This program allows you to decide the types and forms of insulation that will work best for you.

What Is The Meaning Of R38 Insulation?

R38 is most likely to be the most frequently recommended amount in insulation. The other factor to consider is which portion of the home is insulated. Attics and walls do not have the same requirements as attics. R38 is a measure of thickness and efficacy that is commonly found in houses in both warmer and cold regions.

Is R30 Insulation Good For Attic?

R-Value is an indicator of insulation’s capacity to withstand heat flow. The higher the R-Value is, the more efficient the thermal performance that is provided by insulation. Insulation. According to the insulation kind, the most recommended level for attics is to insulate to R-38, which is about 10-14 inches.

What Is The Best R-Value For Attic Insulation?

A properly insulated attic is a simple way to keep your home’s temperature in check. However, selecting the best material can be a difficult problem. There are many types of materials available, and you could not know every one of them, particularly if you’re the first homeowner.

FIBERGLASS BATT ATTIC INSULATION

Many people believe that fiberglass batt is the most effective attic insulation. It’s made up of plastic which is reinforced by tiny glass fibers. The batt model is available in blankets -i.e., smaller cut sections that can be laid out wherever you’d like to.

FIBERGLASS ROLL ATTIC INSULATION

Another form of attic insulation is fiberglass roll. It is the same as the type mentioned earlier. It comprises tiny pieces of glass that are reinforced with plastic; however, the way it is rolled has a slight distinction. As you can probably tell, the rolled version comes in larger pieces that we could cut into rolls.

How Many Inches Of Insulation Is R38?

The insulation lifespan is typically 20-30 years, and the degradation can begin in the first 15 years after the installation. Like other kinds of insulation, extreme weather or interference from outside can decrease the life span.

Which is better, R19 than R30 insulation?

In your home, warmer air is at a higher pressure and is looking to move or move to lower pressure, cool air from outside. The insulation in your ceilings and walls can slow down heat transfer. Therefore, R19 is more efficient in insulation than R13, and R30 is more efficient than R19. The greater the value of R greater is insulation.

What Is R38 Blown Insulation?

R38 blown insulation is made by taking cellulose granules, combining them with water, and blowing the mixture into attics. This insulation is fluffy, lightweight, and resistant to compression. It also fights moisture buildup while allowing air to circulate in your attic.

How Thick Is R38 Blown Insulation?

Unfortunately, it’s not easy to determine how thick R38 blown insulation is. You can expect an R38 batt to be around 3 ½ inches thick based on volume measurements. However, because installation methods vary widely, it’s important to do your due diligence before you make a purchase.

Why Is R38 Blown Insulation Used?

R38 blown insulation is used to fill the air cavity of your home. This increases insulation and can reduce energy costs even more than simply installing R30 in your attic space. By filling the air cavities, heat can’t transfer so easily from your living space to your attic and vice versa.

How Much Does R38 Blown Insulation Cost?

The cost of R38 blown insulation depends on several factors, including Volume: Generally speaking, the larger the volume needed for a project, the more expensive it will be to complete that project. So, the more R38 insulation needed for your home, the higher the price per square foot.

Working with the Right Contractor

Before working with any contractor for an R38 blown insulation installation, be sure to do some research on Yelp and Angie’s List. These are two popular websites where individuals can review local businesses and their experiences with those businesses.

How Thick Is R38 Fiberglass Insulation?

How thick is R38 fiberglass insulation? The thickness of fiberglass insulation can vary depending on the manufacturer and installation. However, most R38 batt insulation is around 3 ½ inches thick.

How Is Thick R38 Insulation?

If you’re looking for the best insulation for your home, be sure to consider R38 blown insulation. Not only does it help keep your home comfortable in any season, but it can lower energy costs.

image

1.Recommended Home Insulation R–Values | ENERGY STAR

Url:https://www.energystar.gov/campaign/seal_insulate/identify_problems_you_want_fix/diy_checks_inspections/insulation_r_values

14 hours ago 8 rows · R25 to R38: R13 to R19: 3: R30 to R60: R25 to R38: R19 to R25: 4: R38 to R60: R38: R25 to R30: 5 to 8: R49 to R60: R38 to R49: R25 to R30: Wall Insulation - Whenever exterior siding is removed on an: Uninsulated wood-frame wall: Drill holes in the sheathing and blow insulation …

2.R38 Insulation Thickness For Different Insulation …

Url:https://airflowacademy.com/r38-insulation-thickness/

34 hours ago Jan 13, 2022 · Rockwool is a mineral wool substance that is inorganic and can be used as thermal insulation in attics, wall cavities, and ceiling cavities. Rock wool applied to a depth or thickness of 13.8″ will attain an R-value of R38. It is usually made of rock, furnace slag, and various …

3.What Does R38 Really Mean When it Comes to Insulation …

Url:https://activerain.com/blogsview/2620192/what-does-r38-really-mean-when-it-comes-to-insulation-and-how-does-it-benefit-me-

28 hours ago Nov 26, 2011 · The type of heating system used is also considered in determining the best insulation for the home. The final variable is what part of the house is being insulated. Walls and attics do not carry the same legal requirements. R38 is a measurement of the thickness and …

4.Videos of What Is R38 Insulation Used For

Url:/videos/search?q=what+is+r38+insulation+used+for&qpvt=what+is+r38+insulation+used+for&FORM=VDRE

3 hours ago Apr 08, 2020 · R-38C EcoTouch® Thermal Batt insulation is intended to be friction- fit between wood rafters. In applications with irregular spaced rafters, cut the batts approximately ½ " …

5.What is R 38 attic insulation? - AskingLot.com

Url:https://askinglot.com/what-is-r-38-attic-insulation

22 hours ago Mar 15, 2020 · Regarding this, how many inches of insulation is r38? An R-38 fiberglass batt should be approximately 12 inches thick, while the thickness of cellulose insulation of a …

6.Guide to Home Insulation - Energy

Url:https://www.energy.gov/sites/prod/files/guide_to_home_insulation.pdf

32 hours ago Jan 15, 2010 · R38 should be plenty. The R49 is mostly a marketing gimmick. Upgrading your windows (and any sliding glass doors) during construction gets you the most bang for your …

7.What Is The Difference Between R30 And R38 Insulation?

Url:https://muhammadardhi.com/what-is-the-difference-between-r30-and-r38-insulation/

3 hours ago • Reflective insulation: This type of insulation is most effective in reducing downward heat flow. • Radiant barrier: Especially useful in hot, sunny climates, this type helps keep homes cooler. R …

8.How Thick Is R38 Blown Insulation? - Muhammad Ardhi

Url:https://muhammadardhi.com/how-thick-is-r38-blown-insulation/

25 hours ago Feb 03, 2022 · What Is The Meaning Of R38 Insulation? R38 is most likely to be the most frequently recommended amount in insulation. The other factor to consider is which portion of …

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9