where can i find aluminum cans and plastic + glass bottles to deposit and make money?
YesA ridge vent allows the heat to escape by means of convection - heat rises to the highest point (ridge) and exits, although not fastBy using an attic fan, it will move the heat up and out faster, thereby making the attic cooler.
Not a good idea from what I have read, and experiencedA ridge should be used with soffit ventsBecause heat rises; when air goes out the ridge vent, out side air is pulled in through the soffit ventsHot air goes out cooler air come inThe cooler fresh air is move evenly through the attic lowering the temperature and also extending the life of the roof shinglesA power fan of any type will pull air into the attic from the place of least resistanceIf placed close to the ridge vent it will pull air in from the ridge vent and exhaust it outIf placed low it will pull air in from the soffit vents and exhausts outIf placed in the middle it will disrupt the natural flow of the heat rising and exiting at the highest point of the attic Now if the jury is still out consider this: you have a ridge vent installed it should last the life of your roofNo maintenance or placement of fans, or expense of running the fans.
A whole house fan would cool your house better and also help get moisture and other things out of your house (keeping the air cleaner)But they are more expensiveAn attic fan would be better than ridge venting, but not as good as installing a whole house fan.
Ash is rightYou can then sell such items to a scrap items dealer who buys used throwaway items like used/waste paper, aluminum cans or boxes and so onThe scrap dealer may give you money in good amount only if the used plastic bottles are of good material like PET and are branded like Eureka Forbes or SBanik TypesAltogether, in return you will only be able to make pocket money as Ash has already said.
