Loose Fill With Netting/Fabric in Joisted Cavities

Verify that installation area is free of:

active water leaks, fuel leaks (i.e., gas, oil, propane), and pest intrusions

energized or undammed knob and tube wiring

uncovered electrical junctions

improperly terminated devices (ventilation fans, dryers, plumbing stacks, condensate lines, combustion appliance flues/chimneys, etc.)

unshielded high-temperature devices (non-IC rated recessed lights, chimneys, flues, vents, etc.) unless they are zero clearance devices

insulation escape openings

Verify that installation area is:

intact, able to support insulation weight, and air sealed

Select insulation and netting/fabric that has a flame spread and smoke development index of 25/450 or less when tested in accordance with ASTM E84 or UL 723

Install flags that can be seen below the floor joists at all utility junctions for future identification and ensure utility junctions remain accessible per local code requirements

Install netting/fabric using mechanical fasteners spaced according to netting/fabric manufacturer specifications

Installation must have a minimum service life of 20 years

Fill netted/fabric covered cavities to capacity with loose fill insulation in accordance with manufacturer specifications

Install insulation to prescribed R-value and in continuous contact with the air barrier

Install closure system over all access holes that prevents insulation loss and is permanent

Post a dated receipt signed by the installer that minimally includes: Installed insulation type, coverage area, installed thickness, minimum settled thickness, installed R-value, and number of bags installed