Antique store people told me this a few years back and I forgot what you had to the tide, baking soda or ???
Never ever block attic roof vents would i be doin' more harm than good ? and the answer is yes
You need air flow and air exchange to keep excess moister from building up to cause mold and dry rot, sounds like you could employ a dehumidifier to keep it at about 52%
You should leave the vents open summer and winter.You need the air circulation in that area to prevent moisture build up which will occur and cause problemsYou should be well insulated in the ceiling of the third floor not against the roof.If that area was to be finished and lived in then you would insulate the roof and remove the vents and use windows or fans to circulate the air thus preventing moisture build upGood thoughts wise moves.
The vents need to remain openHowever, if you are looking to save money, make sure the stair way to the attic is insulated wellMake sure the door to the attic seals, and is insulated, if possibleCheck the walls surrounding the stairsIf possible, consider laying a piece of plywood, with insulation attached, over the stair wellThe way insulation works in an attic is to create a barrier between the warm house and the cool, moving air in the atticRolls of fiberglass can do this, and so can blown cellulose insulation Good luck reducing your energy bills.
You take Tide or any powder detergent with Borax and put it in a bowl lined with aluminum foilPour boiling water over it and put the silver inThe tarnish adheres to the aluminum.
