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� <br />siHCLs �r►r.r.s �=� <br />1. Let-In 2Z <br />A 2x ma�aber can be inetalled in the exterior eide of the box <br />header.. This allowi 4 inohea of ineulation. <br />Draperie• can ta provided for vith plyr000d or wood insete ae the <br />ecde of the header, or bq extending the header at each ead. <br />Both typee of boz headera can be ineulated with batte. <br />4. AIR SP.ALING <br />Super Good Centa 5tandazde do uot require any exterior sealing of walls. <br />If the builder viehee to c(o so, there are some locations where it ie <br />advisable. <br />1`' A. Band Joiete <br />Sand joista can be aources of air leakage into floor apaces. They <br />can be sealed with caulk, or by applying Tyvek� or Parsec� aheet <br />on the outeide of the houae. <br />- B. Cornere <br />..: :.. <br />''.:'�; Cornere can be chilled by air bloving in through the joints. <br />;,�� Sheathiag can be caulked at cornere, or, again, Tyvek� or Pareec� <br />will atop it. <br />.. . �.....r.....�.....� <br />4-84 <br />• <br />i• <br />