and how is this relates to valence electrons?
Depending on where you live, most Home Depot or Lowe's stores give classes on how to insulateAlso depending on where you live, blown insulation may be inappropriate, not acceptable to current codes, and it is expensive If you can't wait for the classHome depot use to have instruction sheets, and there are books, or you could go online to DIY, Home Depot sites and print instructions from themInsulation is not on of those things that is a throw together, one son-in-law cost a friend a couple thousand $$ when the local utility company came out to do an efficiency inspection and discovered that the insulation had been installed wrongThe foil side was positioned wrong and where that was correct the insulation t had been compressed to the point that the R value was decreased, greatlyThe kid want to to help, but didn't know how, refused to read instructions or listen to any one and used duck tapeoh by the way Insulation is not stapled or nailed.
i believe that aluminium is the more reactive of the two- as it's valency is +3, whereas copper's valency is just +the valency of an element indicate how many electrons fill it's outershell of electronsgenerally you need 8 electrons to fill a shellif it says that it's valency is +x then that means that it has more electrons in it's outer shell than 8 by x amount, it it is -X then it has less than 8 electrons in it's outer shell by X amount; this all means that it doesn't have a full shell (a full shell has no valence) so it is therefore less stable and more reactiveas you can see aluminium is 3 electrons over being completely stable, and copper is just one electron over from being completely stable, so aluminium is less stable and can react more readily.
Yes you should go perpendicular to first layer for a better seal! Or at least be sure seams do not stay directly above joistsThe styrofoam baffles would be a great benefit, but only if they run out to vented soffitYou must be sure to have proper ventilation! The underside of roof deck in the area of the flex pipe looks very black, with possible deterioration, or delamination of wood,caused by excessive moistureNails look shiny did you install new shingles? Just wondering if that area of roof was structurally sound! Flex pipe needs to be insulated! you can wrap with fibreglass then polyI would keep an eye on it for any moisture once you have insulated.In cold weather if you have any frost it will tell you that more venting is requiredIn warm weather check for mold, if attic is dry you should have no problemsAny sign of mold, spray with 50/50 water bleach solutionOnce warm weather returns I think you`ll be fine! It looks like your doing a great job!
I strongly suggest you visit the insulation manufacturer's websites for detailed instructions for your situationThey cover almost any normal type of insulation job, including how much for your area.
Blown in cellulose insulation as previously suggested is the easiest way to go for the floor of your atticYou don't insulate the walls unless you are heating your attic space.
