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5 ways to insulate a wall to lower your energy bills and block out noise – and which ones are a mistake to DIYWalls are mostly R-16 or higher, ceilings and attics are mostly R-30 or higher. Other things to be considered are sound barriers and fire rating’. Fitting fiberglass insulation is simple ...
But that’s the case with PennDOT’s Highland Park Interchange Project for which locally based, award-winning artist Brian Peters designed unique sound barrier walls. The wavy design is ...
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