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How Insulation Works

How Insulation Works

Insulation in your home provides resistance to heat flow. The more heat flow resistance your insulation provides, the lower your heating and cooling costs. Properly insulating your home not only reduces heating and cooling costs, but also improves comfort.

To understand how insulation works it helps to understand heat flow, which involves three basic mechanisms -- conduction, convection, and radiation. Conduction is the way heat moves through materials, such as when a spoon placed in a hot cup of coffee conducts heat through its handle to your hand. Convection is the way heat circulates through liquids and gases, and is why lighter, warmer air rises, and cooler, denser air sinks in your home. Radiant heat travels in a straight line and heats anything solid in its path that absorbs its energy.

Most common insulation materials work by slowing conductive heat flow and -- to a lesser extent -- convective heat flow. Radiant barriers and reflective insulation systems work by reducing radiant heat gain. To be effective, the reflective surface must face an air space.

Regardless of the mechanism, heat flows from warmer to cooler until there is no longer a temperature difference. In your home, this means that in winter, heat flows directly from all heated living spaces to adjacent unheated attics, garages, basements, and even to the outdoors. Heat flow can also move indirectly through interior ceilings, walls, and floors -- wherever there is a difference in temperature. During the cooling season, heat flows from the outdoors to the interior of a house.

To maintain comfort, the heat lost in the winter must be replaced by your heating system and the heat gained in the summer must be removed by your cooling system. Properly insulating your home will decrease this heat flow by providing an effective resistance to the flow of heat.


U.S. Department of Energy - Energy Efficiency and Renewable Energy

 
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Check out our Air Conditioning repair videos on Youtube for Sublimity OR
Read what your neighbors say about the Ductless Heat Pump repair or installation we performed near Salem OR on Yelp!
Contact Info
Contact Info
 
41713 Stayton Scio Rd. • Stayton, OR 97383
503.769.8483
503.769.8554
service@santiamheating.com
CCB# 104080
Connect With Us
 
For Ductless Heat Pump repair in Salem OR, like us on Facebook!
For Ductless Heat Pump repair in Sublimity OR, visit us on Google!
Schedule a Air Conditioning repair service in Salem OR
Looking for AC repair service in Sublimity OR? - Check out our YouTube channel.
Read what your neighbors say about the Ductless Heat Pump repair or installation we performed near Salem OR on Yelp!
 
 
Like us on facebook for more info on our Ductless Heat Pump repair service in Salem OR
For Ductless Heat Pump repair service in Salem OR, find us on Google!
Call Santiam Heating & Sheetmetal, Inc. for great Ductless Heat Pump repair service in Salem OR
Check out our Air Conditioning repair videos on Youtube for Sublimity OR
Read what your neighbors say about the Ductless Heat Pump repair or installation we performed near Salem OR on Yelp!
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