m (just touch up)
Line 13: Line 13:
Insulators
Insulators
* Choice ones that "retard the flow of heat from one object to another"
* Choice ones that "retard the flow of heat from one object to another"
* High "resistance to heat transfer
* High "resistance to [[heat transfer]]
* Porous Materials are Great Insulators
* Porous Materials are Great Insulators
- This is due to the air in the pores acts as a "Good insulator"
- This is due to the air in the pores acts as a "Good [[insulator]]"
* Choose darker objects = better emitter and absorber
* Choose darker objects = better emitter and absorber
* Darker objects > absorber/emmitter than white
* Darker objects > absorber/emitter than white
* Thermos = bottle inside a bottle
* Thermos = bottle inside a bottle
- Device to reduce heat transfer
- Device to reduce heat transfer
- 2 bottles seperated by a vaccum = > heat transfer from to inside chamber
- 2 bottles separated by a vacuum = > heat transfer from to inside chamber


==Types of Insulation==
==Types of Insulation==
Line 34: Line 34:
**Fills small cracks/crevices easier
**Fills small cracks/crevices easier
**Reduces air Leakage better
**Reduces air Leakage better
** Better sound reducer (then natt insulation)
** Better sound reducer (then batt insulation)
** R-3 to R-4 value per inch
** R-3 to R-4 value per inch
** Cellulose fiber > (by 30%) then loose-fill rock wool
** Cellulose fiber > (by 30%) then loose-fill rock wool
Line 67: Line 67:
**Sprayed on Wall, ceiling, and floor cavities
**Sprayed on Wall, ceiling, and floor cavities
**Expands to sold cellular plastic with many air cavities
**Expands to sold cellular plastic with many air cavities
**Good for irregular shaped areas and around abstructions
**Good for irregular shaped areas and around obstructions
*Negatives
*Negatives
**Require specific machinery to spray/mix
**Require specific machinery to spray/mix
'''IF YOU NEED HELP DETERMINING THE TYPE OF INSULATION, CONSULT A CONTRACTOR OR TRY THIS SITE <http://www.ornl.gov/sci/roofs+walls/insulation/ins_08.html>
'''IF YOU NEED HELP DETERMINING THE TYPE OF INSULATION, CONSULT A CONTRACTOR OR TRY THIS SITE http://www.ornl.gov/sci/roofs+walls/insulation/ins_08.html


==Proper Procedures==
==Proper Procedures==
*Monitor your energy usage form year to year
* Monitor your energy usage form year to year
*Call Local Power Company/Contractor about an energy audit
* Call Local Power Company/Contractor about an [[energy audit]]
* Meansure depth of insulation between joists in attic if unheated
* Measure depth of insulation between joists in attic if unheated
*Re-caulk windows, doors, siding, dampers, vents
* Re-caulk windows, doors, siding, dampers, vents


Insulating
Insulating
Line 92: Line 92:
! Southern Zone
! Southern Zone
|-
|-
| Attic
| '''Attic'''
| R38
| R38
| R30
| R30
| R26
| R26
|-
|-
| Temperate Zone
| '''Walls'''
| R19
| R19
| R19
| R19
| R19
| R19
|-
|-
| Southern Zone
| '''Floors'''
| R22
| R22
| R13
| R13
Line 110: Line 110:
* Install a vapor barrier of 6-mil polyethylene on the warm-in-winter side of the insulation.
* Install a vapor barrier of 6-mil polyethylene on the warm-in-winter side of the insulation.
* Insulate the rim joists at the top of the foundation walls by filling them loosely with fiberglass insulation.
* Insulate the rim joists at the top of the foundation walls by filling them loosely with fiberglass insulation.
* Insulate an attached garage with faced fiberglass insulation, with the vapor barrior facing into the garage.
* Insulate an attached garage with faced fiberglass insulation, with the vapor barrier facing into the garage.
* Don't compress insulation to fit: it needs air space to work effectively.
* Don't compress insulation to fit: it needs air space to work effectively.
'''In the Attic'''
'''In the Attic'''
Line 120: Line 120:
Estimated Costs (Energy and It's Uses in the Environment)
Estimated Costs (Energy and It's Uses in the Environment)
* Increased Insulation = save as much as 50% on heating/cooling bills
* Increased Insulation = save as much as 50% on heating/cooling bills
* Federal Minimum Property Standards could be reached nationwide is everyone saved atleast 15% of current heating demand.
* Federal Minimum Property Standards could be reached nationwide is everyone saved at least 15% of current heating demand.
--The minimum insulation recommendations are currently
--The minimum insulation recommendations are currently
*Celings have to now have a [[R value]] of 38, not the previous 19
*Ceilings have to now have a [[R value]] of 38, not the previous 19
*Wall's [[R Value]] should be 19, instead of the previous 11.
*Wall's [[R value]] should be 19, instead of the previous 11.
*Floors should have a 11 [[R-value]], instead of the previous 22.
*Floors should have a 11 [[R value]], instead of the previous 22.


Thermal Resistance = [[R value]]
Thermal Resistance = [[R value]]
Line 132: Line 132:
***Higher R-value = better insulating properties
***Higher R-value = better insulating properties
R-Values Per Inch For Common Insulating Materials*
R-Values Per Inch For Common Insulating Materials*
---For a broader table please follow this external link <http://www.coloradoenergy.org/procorner/stuff/r-values.htm>
---For a broader table please follow this external link http://www.coloradoenergy.org/procorner/stuff/r-values.htm
   {| class="wikitable"
   {| class="wikitable"
|-
|-
Line 173: Line 173:
*"If the wind velocity increases to 15mph, the R-Value of the air film is decreased by 50%.
*"If the wind velocity increases to 15mph, the R-Value of the air film is decreased by 50%.
- ANSWERS TO SOLVING SUCH PROBLEMS
- ANSWERS TO SOLVING SUCH PROBLEMS
* Plant trees and schrubs near house to reduce wind effects.
* Plant trees and shrubs near house to reduce wind effects.


==Common Mishapps When Insulating Your Own Home==
==Common Mishapps When Insulating Your Own Home==
* AIR LEAKS
* AIR LEAKS
- Unsealed gaps around: Joists, sills, windows, no weatherstipping around doors,
- Unsealed gaps around: Joists, sills, windows, no weather stipping around doors,
Exterior Vents (Water Connections, Kitchen/Bathroom Vents, Dampers/vents)
Exterior Vents (Water Connections, Kitchen/Bathroom Vents, Dampers/vents)


Line 195: Line 195:
-Hinrichs and Kleinbach. "Energy It's Use and the Environment" 3rd Edition. Thomson Learning, New York, NY 2002.
-Hinrichs and Kleinbach. "Energy It's Use and the Environment" 3rd Edition. Thomson Learning, New York, NY 2002.


- Almost any HOW TO BOOK.  I love the Black and Decker Complete Photo Guide to Home Repair.  It contains a basic backround and visual step by step procedure.
- Almost any HOW TO BOOK.  I love the Black and Decker Complete Photo Guide to Home Repair.  It contains a basic background and visual step by step procedure.


- "Energy Efficient Rehab Advisor" <http://rehabadvisor.pathnet.org/sp.asp?id=10783>
- "Energy Efficient Rehab Advisor" <http://rehabadvisor.pathnet.org/sp.asp?id=10783>


[[Category: Home Energy Conservation]]
[[Category: Energy conservation]]
[[Category: Heat-Transfer Control]]
[[Category: How tos]]
[[Category: How tos]]
[[Category: How to properly insulate you Home]]
[[Category: Energy]]
[[Category: Insulating Your Home]]
[[Category: Heating and cooling]]
[[Category: PH261]]
[[Category: PH261]]
{{PH261 Page}}
 
==Links==
==Links==
Useful Government Web Sites
Useful Government Web Sites
*US.Deparment of Energy <http://www.eere.energy.gov/>
*US Department of Energy http://www.eere.energy.gov/


Grants to Fund Your New Project
Grants to Fund Your New Project
*Energy Grants for Homeowners <http://www.elements.nb.ca/theme/building/energuide/grants.htm>
*Energy Grants for Homeowners http://www.elements.nb.ca/theme/building/energuide/grants.htm
To create a page related to Photovoltaics


==To create a page related to Home Instulation==
 
==To create a page related to Home Insulation==
First browse the articles and subcategories below for examples and possible collaborations.  
First browse the articles and subcategories below for examples and possible collaborations.  
Type a proposed name for the project, organization, thesis, how to or other Photovoltaics related resource in the following create box.  
Type a proposed name for the project, organization, thesis, how to or other related resource in the following create box.  
 
Add information. Do not worry about formatting or completeness, others will help and changes are easily made. Be BOLD.  
Add information. Do not worry about formatting or completeness, others will help and changes are easily made. Be BOLD.  
TOGETHER WE CAN ACHIEVE MORE!! LET"S ALL SHARE OUR KNOWLEGE and like my physics professor suggests, add on information so we can all unite!
TOGETHER WE CAN ACHIEVE MORE!! LET"S ALL SHARE OUR KNOWLEDGE and like my physics professor suggests, add on information so we can all unite!
Such topics could be
Such topics could be
* Caulking Procedures
* [[Caulking Procedures]]
* Windows
* Windows
* Dampers
* [[Dampers]]
* Heating Systems
* [[Heating Systems]]

Revision as of 00:23, 8 December 2007

Insulating Your House

ABSTRACT

The basic idea is to use the appropriate insulation within your home to save on heating and cooling costs. There are easy fixes and many new technology in insulation that will prevent thermal loss year round. The expenses might seem high but will be able to pay for themselves in years and create a more energy efficient environment. This article will discuss the different options and procedures available.

Physics Principles of Insulation

Building Materials

Insulators

  • Choice ones that "retard the flow of heat from one object to another"
  • High "resistance to heat transfer
  • Porous Materials are Great Insulators

- This is due to the air in the pores acts as a "Good insulator"

  • Choose darker objects = better emitter and absorber
  • Darker objects > absorber/emitter than white
  • Thermos = bottle inside a bottle

- Device to reduce heat transfer - 2 bottles separated by a vacuum = > heat transfer from to inside chamber

Types of Insulation

4 BASIC TYPES OF INSULATION

Loose-fill Insulation

  • Materials included in:
    • loose fibers or fiber pellets
    • Made of Cellulose fibers chemically treated to be moisture and fire resistent
    • Fiberglass and Rock Wool = [Blow-in Blanket System] (BIBS)
    • cost more then batt insulation
  • Benefits/Positives
    • Fills small cracks/crevices easier
    • Reduces air Leakage better
    • Better sound reducer (then batt insulation)
    • R-3 to R-4 value per inch
    • Cellulose fiber > (by 30%) then loose-fill rock wool

Batt and Blanket Insulation

  • Materials Include:
    • Made of Mineral Fibers (fiberglass or rock wool)
  • Benefits/Positives
    • Least expensive wall insulation material
    • Best for Standard joist/rafters/studs
    • Build in radiant barrier backing
    • Come in long rolls that can be cut to desired length
    • R-value of Approximately R-3 per inch thickness

Rigid Board Insulation

  • Materials Include:
    • Made from fiberglass, polystyrene, or polyurethane
  • Benefits/Positives
    • Come in variety of thicknesses
    • R-value is the HIGHEST = R-4 to R-8 per inch
  • Uses
    • Reproofing work on flat roofs
    • Basement Walls
    • Perimeter insulation at concrete slab edges
    • Cathedral Ceilings
    • Must be covered with 1/2 inch gypsum board in used inside
    • Must be covered with Weather-proof facing if used exteriorly
  • Uses
    • Insulate below floors, above ceilings, and within walls

Spray Foam Insulation

  • Materials include:
    • Two-part liquid containing polymer and foam agent
  • Uses
    • Sprayed on Wall, ceiling, and floor cavities
    • Expands to sold cellular plastic with many air cavities
    • Good for irregular shaped areas and around obstructions
  • Negatives
    • Require specific machinery to spray/mix

IF YOU NEED HELP DETERMINING THE TYPE OF INSULATION, CONSULT A CONTRACTOR OR TRY THIS SITE http://www.ornl.gov/sci/roofs+walls/insulation/ins_08.html

Proper Procedures

  • Monitor your energy usage form year to year
  • Call Local Power Company/Contractor about an energy audit
  • Measure depth of insulation between joists in attic if unheated
  • Re-caulk windows, doors, siding, dampers, vents

Insulating

  • Replace insulation with newer/more appropriate insulation for area
  • Add vapor barrier to all exterior walls
  • If insulating the floors above an unheated basement, place insulation facing toward floor
  • To insulate your basement use rigid insulation boards.

Improving Insulation

Northern Zone Temperate Zone Southern Zone
Attic R38 R30 R26
Walls R19 R19 R19
Floors R22 R13 R11

Helpful tips from Black and Decker

  • Install a vapor barrier of 6-mil polyethylene on the warm-in-winter side of the insulation.
  • Insulate the rim joists at the top of the foundation walls by filling them loosely with fiberglass insulation.
  • Insulate an attached garage with faced fiberglass insulation, with the vapor barrier facing into the garage.
  • Don't compress insulation to fit: it needs air space to work effectively.

In the Attic

  • Prevent heat loss hear by adding a second layer of insulation over the joists = Attic Blanket
  • Insulate the rim joists at hte top of your foundation walls by filling them loosely with fiberglass insulation.

Materials

Estimated Costs (Energy and It's Uses in the Environment)

  • Increased Insulation = save as much as 50% on heating/cooling bills
  • Federal Minimum Property Standards could be reached nationwide is everyone saved at least 15% of current heating demand.

--The minimum insulation recommendations are currently

  • Ceilings have to now have a R value of 38, not the previous 19
  • Wall's R value should be 19, instead of the previous 11.
  • Floors should have a 11 R value, instead of the previous 22.

Thermal Resistance = R value

  • Physics behind this can be found by clicking on the word

(This was complete for an exam review in my PH261 class)

    • Given by thickness/material's thermal conductivity (delta/k).
      • Higher R-value = better insulating properties

R-Values Per Inch For Common Insulating Materials* ---For a broader table please follow this external link http://www.coloradoenergy.org/procorner/stuff/r-values.htm

Material Thickness R-Value
Hard wood 1" 0.91
Plywood 1/2" 0.62
Wood siding 1/2" 0.81
Asphalt roofing Shingle .44
Fiberglass insulation 3 1/2" 10.9
Fiberglass insulation 6" 19.0

Example in Wall Values -Combination of various materials = greater R value = greater insulation and > energy (heat/cooling) loss

  • R for a typical wall has siding, plywood, fiberglass insulation, and plasterboard

Things that Affect R value

  • Location

-"Convective resistance depends strongly on the velocity of the air moving along the surface." All previous values are for areas with 10mph winds.

  • "If the wind velocity increases to 15mph, the R-Value of the air film is decreased by 50%.

- ANSWERS TO SOLVING SUCH PROBLEMS

  • Plant trees and shrubs near house to reduce wind effects.

Common Mishapps When Insulating Your Own Home

  • AIR LEAKS

- Unsealed gaps around: Joists, sills, windows, no weather stipping around doors, Exterior Vents (Water Connections, Kitchen/Bathroom Vents, Dampers/vents)

- Cracks in Foundation/Walls/Chimneys

- Poorly fitted Air Barriers in Walls: Attach Hatches and Wall outlets

  • Spreading Insulation Too THIN
  • Using the Wrong type of Insulation
  • NOT Insulating Your Whole House(Attic,Basement, Vents, Doors)
  • NOT Using Weatherizing Materials
  • Letting Fiberglass Irritate your skin. (WEAR PANTS/LONG SLEVE CLOTHING and change clothing proptly.)
  • REPLACE YOUR WINDOW (Large loss of heat can occur here!!)
  • Allow Your Wood to Dry completely before adding Weatherizing Material or Moisture Resistant Materials

Insulationhouse.jpg

References

-Hinrichs and Kleinbach. "Energy It's Use and the Environment" 3rd Edition. Thomson Learning, New York, NY 2002.

- Almost any HOW TO BOOK. I love the Black and Decker Complete Photo Guide to Home Repair. It contains a basic background and visual step by step procedure.

- "Energy Efficient Rehab Advisor" <http://rehabadvisor.pathnet.org/sp.asp?id=10783>

Links

Useful Government Web Sites

Grants to Fund Your New Project


To create a page related to Home Insulation

First browse the articles and subcategories below for examples and possible collaborations. Type a proposed name for the project, organization, thesis, how to or other related resource in the following create box.

Add information. Do not worry about formatting or completeness, others will help and changes are easily made. Be BOLD. TOGETHER WE CAN ACHIEVE MORE!! LET"S ALL SHARE OUR KNOWLEDGE and like my physics professor suggests, add on information so we can all unite! Such topics could be

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