Attic Insulaation Markers Must Be Applied Every

The depth markers must be installed for every three hundred square feet of attic area and must face toward the attic access.

Attic insulaation markers must be applied every.

1percentages of recycled content from usdoe eere. The recommended level for most attics. To assist an inspector and the installer in verifying the depth of the insulation the wsec requires that depth markers be placed in the attic space. Markers shall be provided for every 300 square feet of attic area attached to the trusses rafters or joists and indicate in 1 inch high numbers the installed thickness of the insulation.

In particularly cold climates you might go up to r 60. If your attic insulation covers your joists and is distributed evenly you probably have enough. Johns manville r 49 kraft faced fiberglass insulation batt 24 in. In general an attic s r value should be between r 30 and r 49.

Section r303 of the 2018 iecc all insulation vapor barrier and ventilation information must be listed at the proper location on the building plans. Set your store to see local availability add to cart. The higher the r value the better the thermal performance of the insulation. Set your store to.

Your home s r value score will guide you toward the type of insulation you need. Model k4924 897 80 897 80. View the owens corning attic insulation 483 00 pallet 483 00 pallet standard delivery.