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Question:

The structure of paper, lead and Aluminum? + why can it get through alpha, beta and gamma?

what is the structure of paper, lead and aluminum? what are the molecules like inside it? why can alpha get through paper?why can aluminum stop beta particles through?why can lead reduce the gamma particles going through ?please answer each questions if you can, thanks!

Answer:

I am contractor.As such I cannot be an expert in everything so I rely on professionals in the various trades and research for answersI was recently turned on to closed cell insulation which is a dense foam productI was advised to use a combination of a thin application of closed cell between the rafters with regular fiberglas bats over thatThe new theory is that it is better to make any attic space closed conditioned space.I would have an insulation contractor who has a variety of products to evaluate your situationTalk with more than oneYou don't want to screw this up.Proper insulation can save you in many ways.

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