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Question:

How does insulation work?

I've been helping my dad sheet rock our basement and we needed to replace some insulationSome insulation had aluminium foil facing the living space, and others had brown paperHow does insulation help keep the heat inside our houses?

Answer:

bran, popcorn(poopcorn lol), legumes, nuts, potatoes
the best and healthiest are fruits and veggiesbananas,prunessupplements or other processed are not good for you health.
The above is fine but it sounds like you could use something moreStart eating fermented foodsYou can also start a product/powder that contains psylliumBoth will flush you out and keep at it for maintenanceI do and it's helped big timeAlso drink a lot of clean water everyday.
The insulation you are referring to is pretty simple to understandIt is thickness dependent like the blanket on your bedIt works by making it hard for heat to conduct throughIt does not trap air (cheap air filters are made from fibers of glass just like insulation)It works giving heat a lot of mass to soak intoIt basically absorbs the heat and stores it so it can not move from one side through to the other very quickly The kraft paper on one side is used as a moisture barrier and to help hold it in place when installedIt gives installers something to staple to the wall or studsThe foil facing is used again as a moisture barrier but is more useful as a radiant barrierIt works by reflecting heat much as a mirror reflects lightThis means that heat has a much harder time getting into the insulation which in turn, keeps the insulation from working so hardThe kraft paper is now considered a fire hazard in most areas and is against most fire codes now a daysIt should be installed so that it does no have direct contact with an open airspaceThe foil facing should face the airspace and is almost always rated as a class a fire ratingIn a basement wall, you probably don't have an airspace as you would in an attic so I wouldn't worry about fire ratings too muchIf the insulation will be totally enclosed after the wall is sheet rocked, then you can use either the kraft paper faced or unfaced insulationI am from the Dallas area though and don't have a lot of experience with basements in general Typically, the thicker the insulation, the higher the R-Value.

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