the best way to know if you have sufficient loft barrier is to have a skilled business like your local correction technician furnace & cooling come to your house and measure. the performance of barrier is measured by r – value, and every region of the u.s. has a recommend level of r-value depending on that regions climate. if you have an uncovered loft floor and can your loft barrier is below the loft floor joist it is likely you do not have sufficient barrier. . . . → Read More: a/c is not the only way to stay cool
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