insulation home economics LC
About this set
Created by:
dunour1 on March 4, 2012
Classes:
Ms Naughton's 6th yr 2012, St Angela's college Leaving Certs, Leaving Certificate Home Economics, PDST Local Facilitators
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14 terms
Terms | Definitions |
|---|---|
 principle of insulation | insulating materials which are poor conductors of heat are used throughout the house to prevent heat loss |
| insulating materials | air, polystyrene, fibreglass, fabric |
| advantages of insulation | reduce heat loss, saves energy, less damage to environment, noise insulator, comfortable living space |
| attic and roof insulation | fibre blanket, loose fill insulation, foam insulation |
| fibre blanket | strips of insulation blanket made from fibre glass or mineral fibre are laid between the joists in the attic |
| loose fill insulation | pellets of polystyrene or vermiculite are poured between the joists in the attic |
| foam insulation | foam is sprayed between the roof rafters and solidifies. often used in attic conversions |
| cold water storage tank | insulate to prevent freezing. no insulation under the tank. also cold water pipes in the attic- split foam insulation |
| wall insulation | cavity walls- space between blocks - air polystyrene sheets inserted older houses polystyrene foam can be pumped in |
| solid walls- | 1.blanket insulation- fibreglass or rockwool inserted into a wooden frame and covered with layer of plasterboard i2.nsulation sheets are attached to the walls and then covered with plasterboard |
| Floor insulation | fill any gaps fitted carpet with thick underlay |
| window and door | welll fitted door double glazing - two sheets of glass air inside low emissivity glass reduces heat loss fit with draught excluders- flap, brush, flexible strips, adhesive strips, letterbox excluders heavy curtains block up unused fireplaces |
| hot water cylinder | modern - have permanent spray on coating of insulation older copper cylinders- use lagging jacket lag hot water pipes- split foam sleeving |
| BER Certificate | jan 2009- law building energy rating on all homes |
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