INSULATIONINSULATION

CHRIS JACKSON & CHRIS JACKSON & ALEXANDER GULIKALEXANDER GULIK

LESSON OBJECTIVESLESSON OBJECTIVES

Able to correctly define what Able to correctly define what thermal insulation is without the thermal insulation is without the use of reference materialuse of reference material

Match the type of insulation with Match the type of insulation with their properties with 100% their properties with 100% accuracy. accuracy.

Explain the use of insulation in Explain the use of insulation in current technology and predict the current technology and predict the uses of the further.uses of the further.

To solve the math problems to an To solve the math problems to an accuracy of 80%.accuracy of 80%.

DEFINITIONDEFINITION InsulationInsulation

Insulation is a substance that resists the transfer of Insulation is a substance that resists the transfer of heat, generally by incorporating small pockets of air. heat, generally by incorporating small pockets of air. It does not stop heat transfer, simply slows the rate It does not stop heat transfer, simply slows the rate of transfer. of transfer.

Insulation is rated in terms of thermal resistance, Insulation is rated in terms of thermal resistance, called R-value, which indicates the resistance to called R-value, which indicates the resistance to heat flow. The higher the R-value, the greater the heat flow. The higher the R-value, the greater the insulating effectiveness. The R-value of thermal insulating effectiveness. The R-value of thermal insulation depends on the type of material, its insulation depends on the type of material, its thickness and density. thickness and density.

Insulation is made from many types of materials. Insulation is made from many types of materials. Fiberglass, rock wool, urethane foam, polystyrene, Fiberglass, rock wool, urethane foam, polystyrene, cellulose, glass wool, cotton or wood fibers. cellulose, glass wool, cotton or wood fibers.

Heat FlowHeat Flow Heat flows naturally from a warmer to a cooler Heat flows naturally from a warmer to a cooler

space. space. In winter, the heat moves directly from all heated In winter, the heat moves directly from all heated

living spaces to the outdoors and to adjacent living spaces to the outdoors and to adjacent unheated attics, garages, and basements - unheated attics, garages, and basements - wherever there is a difference in temperature. wherever there is a difference in temperature.

During the summer, heat moves from outdoors to During the summer, heat moves from outdoors to the house interior. the house interior.

http://www.ornl.gov/sci/roofs+walls/insulation/ins_01.html

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To maintain comfort, the heat lost in To maintain comfort, the heat lost in winter must be replaced by your winter must be replaced by your heating system and the heat gained heating system and the heat gained in summer must be removed by your in summer must be removed by your air conditioner. air conditioner.

Insulating ceilings, walls, and floors Insulating ceilings, walls, and floors decreases the heating or cooling decreases the heating or cooling needed by providing an effective needed by providing an effective resistance to the flow of heatresistance to the flow of heat

INSULATIONINSULATION

R-VALUER-VALUE The level or performance of an insulation The level or performance of an insulation

product is measured by its Thermal Resistance product is measured by its Thermal Resistance or R – Value.or R – Value.

The R-value is the measure of resistance to heat loss through a material.

The greater the R-value, the more effective the The greater the R-value, the more effective the insulation is. Preventing heat loss through winter insulation is. Preventing heat loss through winter and preventing heat flow through summer.and preventing heat flow through summer.

Materials with the same Materials with the same R-value have R-value have the same insulation performance no matter what the same insulation performance no matter what materials are used. materials are used.

TYPES OF INSULATIONTYPES OF INSULATION

BattsBatts Rolls Rolls Loose-fillLoose-fill Rigid foam boardsRigid foam boards BlanketBlanket ReflectiveReflective

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www.rsarecycle.com/images/insulation.jpg www.hamiltonsupply.com/images/JM%20Roll

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BATTS & ROLLSBATTS & ROLLS Batts and rolls are either Batts and rolls are either

fiberglass or rock wool spun fiberglass or rock wool spun together to form a continuous together to form a continuous piece of insulation. piece of insulation.

Pre-cut pieces of insulation Pre-cut pieces of insulation designed to fit in standard walls designed to fit in standard walls and ceiling cavities. and ceiling cavities.

Framing members are 16Framing members are 16”” or or 2424””

on center. Insulation is usually on center. Insulation is usually 1515””

or 23or 23”” wide and 3 ½ or 5 ½ wide and 3 ½ or 5 ½ thick.thick.

Standard fiberglass insulation Standard fiberglass insulation has a thermal resistance or R-has a thermal resistance or R-values between R-2.9 and R-3.8 values between R-2.9 and R-3.8 per inch of thickness. per inch of thickness.

3 ½ fiberglass = R 113 ½ fiberglass = R 115 ½ fiberglass = R 19 5 ½ fiberglass = R 19

Protective equipment must be Protective equipment must be worn when installing.worn when installing.

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http://images.doityourself.com/stry/a/atticinsulationdojob.jpgClick safety guy for equipment

LOOSE-FILLLOOSE-FILL Loose-fill poured or pumped Loose-fill poured or pumped

into a wall cavity or the roof into a wall cavity or the roof space.space.

No cutting, fitting or stapling No cutting, fitting or stapling of the insulation, one of the of the insulation, one of the fastest and easiest forms of fastest and easiest forms of insulation to install. insulation to install.

Loose fill materials include Loose fill materials include mineral wool and cellulose. mineral wool and cellulose. Cellulose fiber is made from Cellulose fiber is made from recycled paper which has recycled paper which has been chemically treated to been chemically treated to resist fire, rot and vermin.resist fire, rot and vermin.

The advantage of loose fill The advantage of loose fill insulation is that it is not insulation is that it is not restricted to standard sizes restricted to standard sizes or shapes. or shapes.

Can only be professionally Can only be professionally installed.installed.

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garsideinsulation.com

IGLOOIGLOO

http://www.atanarjuat.com/art_direction/sets/

Safety EquipmentSafety Equipment

safety goggles safety goggles gloves gloves long sleeved shirt w/elastic long sleeved shirt w/elastic

sleevesleeve Long pants w/elastic legsLong pants w/elastic legs hard hat or baseball cap hard hat or baseball cap dust respiratordust respirator proper footwearproper footwear

Cover exposed skin as much as possible.

Wall sectionWall section

http://bsd.dli.mt.gov/bc/build_info3.asp