Unit A3-12 Insulating Agricultural Structures Problem Area 3 Construction Systems.

Unit A3-12Unit A3-12

Insulating Agricultural Insulating Agricultural StructuresStructures

Problem Area 3Problem Area 3

Construction SystemsConstruction Systems

Lesson 12Lesson 12

Insulating Agricultural Insulating Agricultural StructuresStructures

Interest ApproachInterest Approach

What does insulation do?What does insulation do? How does it help the How does it help the

farmer/homeowner to insulation farmer/homeowner to insulation structures?structures?

Where is insulation located?Where is insulation located?

Student Learning ObjectivesStudent Learning Objectives

Describe how to stop air leaks.Describe how to stop air leaks. Explain how to compare insulating Explain how to compare insulating

materials.materials. Explain the installation and cost of Explain the installation and cost of

insulation.insulation.

TermsTerms

BlanketsBlankets CelluloseCellulose Dead air spaceDead air space Door thresholdDoor threshold Extruded Extruded

polystyrenepolystyrene FiberglassFiberglass Foam plasticsFoam plastics

Glazing puttyGlazing putty Live air spaceLive air space Loose fill insulationLoose fill insulation Molded polystyreneMolded polystyrene PolyisocyanuratePolyisocyanurate PolyurethanePolyurethane R valueR value Rigid board Rigid board

insulationinsulation

TermsTerms

Rock woolRock wool Rope caulkRope caulk Storm doorStorm door Storm windowStorm window Thermopane Thermopane

windowswindows Triple-glazed Triple-glazed

windowswindows

Tube caulkingTube caulking WeatherizingWeatherizing WeatherstrippingWeatherstripping Weatherstripping Weatherstripping

tapetape

Stopping Air LeaksStopping Air Leaks

Stopping Air Leaks is 1st step to Stopping Air Leaks is 1st step to making a building more energy making a building more energy efficientefficient

Weatherizing a building is the Weatherizing a building is the process of stopping air leaks.process of stopping air leaks.

This begins with checking doors, This begins with checking doors, windows, and other possible leak windows, and other possible leak locationslocations

Doors and WindowsDoors and Windows

A storm window or storm door is a A storm window or storm door is a frame with glass that provides an frame with glass that provides an additional layer of protection against additional layer of protection against the cold with an air space between the cold with an air space between the original and the storm.the original and the storm.

If air in the cavity comes and goes it If air in the cavity comes and goes it is a “live air space”.is a “live air space”.


Thermopane windows have two Thermopane windows have two layers of glass with a sealed air layers of glass with a sealed air space between the two.\space between the two.\

The sealed air space, called dead The sealed air space, called dead air space, is much better at stopping air space, is much better at stopping cold from entering the building.cold from entering the building.


Triple-glazed windows are windows Triple-glazed windows are windows that have three glass panes and two that have three glass panes and two dead air spaces. dead air spaces.

These windows are very expensive, These windows are very expensive, but effective. but effective.


An alternative to buying storm An alternative to buying storm windows a sheet of plastic can be windows a sheet of plastic can be attached to the inside or outside of attached to the inside or outside of the window. the window.

This may not be attractive but it will This may not be attractive but it will pay for itself in energy savings.pay for itself in energy savings.

Caulking / WeatherstrippingCaulking / Weatherstripping

Cracks around windows and doors are Cracks around windows and doors are to be filled with caulking, larger gaps to to be filled with caulking, larger gaps to be packed with a putty knife then be packed with a putty knife then caulkedcaulked

Tube caulking is flexible sealant that is Tube caulking is flexible sealant that is normally applied by cutting the end off of normally applied by cutting the end off of the tube, inserting the tube into a the tube, inserting the tube into a caulking gun, and then squeezing the caulking gun, and then squeezing the gun handle. gun handle.


It comes in a variety of colors and It comes in a variety of colors and qualities. qualities.

Select caulking that has a long Select caulking that has a long warranty and will be remain flexible warranty and will be remain flexible rather than become brittle.rather than become brittle.


Glazing putty is the material that Glazing putty is the material that seals between the frame and the seals between the frame and the glass of a wooden window.glass of a wooden window.

Weatherstripping tape is a clear Weatherstripping tape is a clear tape like scotch tape that sticks to tape like scotch tape that sticks to window frame surfaces. window frame surfaces.

Rope caulk comes as a roll of Rope caulk comes as a roll of caulking in a rope form.caulking in a rope form.


The material used to plug these The material used to plug these leaks in loose-fitting windows and leaks in loose-fitting windows and doors is called weatherstripping. doors is called weatherstripping.

The felt and rubber types are The felt and rubber types are considered temporary, while considered temporary, while metal/rubber combination types are metal/rubber combination types are more permanent.more permanent.


Foam tape with a sticky side can be Foam tape with a sticky side can be easily installed and has become easily installed and has become very popular.very popular.

A door threshold is fastened to the A door threshold is fastened to the floor under the bottom edge of a floor under the bottom edge of a door to prevent air leaks. door to prevent air leaks. • It may be wood or a combination of It may be wood or a combination of

metal and rubber.metal and rubber.

Insulating MaterialsInsulating Materials

R value is a measure of a material’s R value is a measure of a material’s resistance to heat flow.resistance to heat flow.

The higher the R value the better The higher the R value the better

the quality of the insulation.the quality of the insulation.


Insulation is available as rigid Insulation is available as rigid boards, loose fill, blankets, and boards, loose fill, blankets, and foam plastics.foam plastics.

Rigid board insulation comes in 4’ × Rigid board insulation comes in 4’ × 8’ sheets and is used as wall 8’ sheets and is used as wall sheeting, has a R value of 2.5 to 8.0 sheeting, has a R value of 2.5 to 8.0 per inch.per inch.

Insulating MaterialInsulating Material

Molded polystyrene, commonly Molded polystyrene, commonly known as Styrofoam or “bead known as Styrofoam or “bead board”, has an R value of 3.6 per board”, has an R value of 3.6 per inch. inch.

Extruded polystyrene, commonly Extruded polystyrene, commonly called “blue board”, has an R value called “blue board”, has an R value of 5.3 per inch. of 5.3 per inch.


Polyisocyanurate, commonly sold as Polyisocyanurate, commonly sold as thermax or high-R sheeting, is a thermax or high-R sheeting, is a foam-plastic, glass-fiber reinforced foam-plastic, glass-fiber reinforced core with aluminum foil face layers. core with aluminum foil face layers.

It is sometimes called “silver board” It is sometimes called “silver board” and has a R value of 8 per inch.and has a R value of 8 per inch.


Blankets come as rolls or batts 4 Blankets come as rolls or batts 4 foot long either 3½ or 6 inches thick. foot long either 3½ or 6 inches thick.

They are made to fit between They are made to fit between building framing members placed on building framing members placed on 16 or 24 inch centers. 16 or 24 inch centers.

Blankets generally have a vapor Blankets generally have a vapor barrier of kraft paper or aluminum barrier of kraft paper or aluminum foil. foil.


Fiberglass, composed of glass Fiberglass, composed of glass fibers, is the most common roll type fibers, is the most common roll type insulating material. insulating material.

It has an R value of 3.0 to 3.2 per It has an R value of 3.0 to 3.2 per inch.inch.


Loose fill insulation is either poured Loose fill insulation is either poured in or blown in. in or blown in.

Rock wool and cellulose are the Rock wool and cellulose are the insulating materials commonly used insulating materials commonly used in this form. in this form.


Rock wool (R3 per inch) is Rock wool (R3 per inch) is composed of mineral fibers and is composed of mineral fibers and is naturally fire resistant. naturally fire resistant.

Cellulose (R3.5 per inch) is made Cellulose (R3.5 per inch) is made from paper or wood fibers that are from paper or wood fibers that are chemically treated to become fire chemically treated to become fire and insect resistance.and insect resistance.


Foam plastics are insulating Foam plastics are insulating materials that are sprayed into materials that are sprayed into place. place.

Polyurethane (R6.2 per inch) is the Polyurethane (R6.2 per inch) is the most commonly used foam and may most commonly used foam and may be sprayed in wall cavities, onto be sprayed in wall cavities, onto roofs, or against crawl space walls.roofs, or against crawl space walls.

Installation SafetyInstallation Safety

When installing insulation, wear a When installing insulation, wear a long-sleeved shirt, gloves, and long-sleeved shirt, gloves, and goggles.goggles.

Use a nose mask when blowing in Use a nose mask when blowing in cellulose.cellulose.

The amount of insulation to use The amount of insulation to use depends on the climate in area where depends on the climate in area where

you live & local utility prices.you live & local utility prices.

How is it installed?How is it installed?

When installing batts or rolls of When installing batts or rolls of fiberglass the vapor barrier should fiberglass the vapor barrier should always face the lived-in side.always face the lived-in side.

To pour in or blown in cellulose or To pour in or blown in cellulose or rock wool into a new attic area, start rock wool into a new attic area, start by positioning a plastic vapor by positioning a plastic vapor barrier. barrier.


For pour in, just open the bag and pour For pour in, just open the bag and pour it in place. it in place.

For blown in insulation one person is For blown in insulation one person is needed to open the bags and put the needed to open the bags and put the insulation into a blowing machine insulation into a blowing machine hopper. hopper.

The second person operates the hose in The second person operates the hose in the attic to add the required number of the attic to add the required number of inches of insulation. inches of insulation.


Foam insulation can be pumped into Foam insulation can be pumped into wall cavities. wall cavities.

A special machine is used to pump the A special machine is used to pump the foam onto crawl space walls, into wall foam onto crawl space walls, into wall cavities, and onto roof areas. cavities, and onto roof areas.

This type of installation is normally left to This type of installation is normally left to a professional who owns the equipment a professional who owns the equipment needed.needed.

Review/SummaryReview/Summary

What are some ways improve What are some ways improve efficiency around doors and efficiency around doors and windows?windows?

What does a R-value mean?What does a R-value mean? What are the different types of What are the different types of

insulation?insulation?

Unit A3-12 Insulating Agricultural Structures Problem Area 3 Construction Systems.

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Transcript of Unit A3-12 Insulating Agricultural Structures Problem Area 3 Construction Systems.