WEATHERIZATION INSTALLERTECHNICIAN FUNDAMENTALS DensePack Sidewall Insulation WEATHERIZATION ASSISTANCE
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WEATHERIZATION INSTALLER/TECHNICIAN FUNDAMENTALS Dense-Pack Sidewall Insulation WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Learning Objectives DENSE-PACK SIDEWALL INSULATION By attending this session, participants will be able to: • Explain the importance of achieving uniform density at the targeted R-value throughout the cavity. • Name typical tools for the job, including safety equipment. • Identify basic equipment maintenance protocols. • Use the proper order of operations for blowing in dense-pack sidewall insulation. 2 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
It Works DENSE-PACK SIDEWALL INSULATION “It is not unusual to reduce overall house leakage by 30% to 50% by dense-packing walls and other closed-in cavities. ” - Home Energy Magazine, Nov/Dec 1995 3 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
It Works If… DENSE-PACK SIDEWALL INSULATION Proper (cost-effective) R-value Uniform density throughout cavity Pack to 3. 5 – 4. 5 lbs/ft 3 4 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Typical Tools Used DENSE-PACK SIDEWALL INSULATION 1. Siding remover 2. Eye protection and dust mask 3. Hose cut at 45 degree angle 8 4. Drill bit 6 2 4 3 5. Plugs 6. Mister (for LSW) 5 1 7 7. Corded, 1/2” drill 8. Cellulose Photo courtesy of US Dept. of Energy 5 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Order of Operations DENSE-PACK SIDEWALL INSULATION • Maintain equipment. • Inspect walls. • Determine fill strategy (attic or wall, interior or exterior). • Remove siding (if exterior). • Drill. • Fill. • Replace/repair. 6 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Insulation Blowers and Generators DENSE-PACK SIDEWALL INSULATION Photos courtesy of NRCERT 7 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Maintain Equipment DENSE-PACK SIDEWALL INSULATION • Check belts and other moving parts. • Add graphite to the first batch of cellulose at the beginning of each day to help prevent clogging. • Check filters with every use. • Check static pressure (2. 9 psi at takeoff and end of hose). • Ensure there is enough hose for the job, no leaks. • Check seals. 8 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 Photos courtesy of the US Department of Energy eere. energy. gov
Insulation Blowing Tips DENSE-PACK SIDEWALL INSULATION • Initially adjust your blowing machine settings at “high-air” and “low-material feed. ” • Gradually increase material feed to maximize production while minimizing clogs. • Hose transitions should be gradual. • Use at least 200 feet of hose for good maneuverability while working. • Have someone on the crew continually check inside and underneath the home for spills. 9 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 Photos courtesy of WV GOEO eere. energy. gov
Insulation Machine Settings DENSE-PACK SIDEWALL INSULATION Photos courtesy of WV GOEO Open the product gate for optimal material feed. Adjust the air pressure to optimal flow. 10 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Hose Pressure Gauge DENSE-PACK SIDEWALL INSULATION Photos courtesy of the US Department of Energy 11 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Hoses DENSE-PACK SIDEWALL INSULATION Insulation Hoses and Hose Reel 3” hose Wall tube Hose reel Photos courtesy of various manufacturers 12 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Sidewall Drills and Bits DENSE-PACK SIDEWALL INSULATION Photos courtesy of various manufacturers 13 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Drill Shroud DENSE-PACK SIDEWALL INSULATION Photos courtesy of the US Department of Energy 14 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Inspect Before You Start DENSE-PACK SIDEWALL INSULATION • Holes or weaknesses in interior walls • Location of pocket doors • Wiring • Ducts and pipes • Electrical fixtures • Pre-1978 home? Lead-safe work practices 15 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Determine Fill Strategy DENSE-PACK SIDEWALL INSULATION • Blow in from attic if possible. • Interior • Exterior • Drill at top, bottom, middle? 16 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Remove Siding DENSE-PACK SIDEWALL INSULATION Aluminum Wood Vinyl Asbestos Photos courtesy of the US Department of Energy 17 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Aluminum Siding DENSE-PACK SIDEWALL INSULATION Photos courtesy of the US Department of Energy Pry and slide. You may need a metal cutter. 18 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Vinyl Siding DENSE-PACK SIDEWALL INSULATION Photo courtesy of the US Department of Energy Easier to work with than metal 19 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Wood Siding DENSE-PACK SIDEWALL INSULATION Remove clapboards and pressed board. Remove enough shingles to re-cover holes. Photos courtesy of the US Department of Energy 20 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Drill DENSE-PACK SIDEWALL INSULATION Tips for an efficient job: • Properly sized bit 2. 5” self-feed “wood hog” drill bit • Drill at angle • Get blower busy • Probe • Division of labor 21 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 Photos courtesy of the US Department of Energy eere. energy. gov
Fill DENSE-PACK SIDEWALL INSULATION • Probe cavities for blocks and request holes where needed. • If holes are drilled in the middle of the wall, fill top to bottom. • Feed hose to furthest point from hole, then pull back 12”. • Cellulose-only blower: pull hose out 1’ at a time (faster blower: pull out 2’). • Adjust air gate: 8’ cavity should fill in 2 - 4 minutes. • Assure 100% coverage with no voids. • Verify adequate coverage with IR imager or through accurate verifiable bag counts compared to wall arch at 3. 5 lbs/ft 3. 22 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Proper Density DENSE-PACK SIDEWALL INSULATION Check fill holes You should not be able to stick your finger in. Check material-to-volume ratio: One 30 -lb. bag should almost fill three 8’ cavities with 2 x 4 16” O. C. framing. Photo courtesy of the US Department of Energy 23 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Trouble-Shooting or Shooting Trouble? DENSE-PACK SIDEWALL INSULATION If you’ve blown for more than four minutes without reaching proper density, find out where cellulose is going! Photo courtesy of the US Department of Energy 24 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Replace and Repair DENSE-PACK SIDEWALL INSULATION The job isn’t done until the house is put back together. Photo courtesy of the US Department of Energy 25 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
Summary DENSE-PACK SIDEWALL INSULATION • Dense-pack sidewall insulation is effective when installed correctly. • Target = 3. 5 to 4. 5 pounds/cubic foot. • Aim for uniform density throughout the wall cavity. • Maintain equipment; inspect walls; and drill, fill, and repair. • Avoid accidents; check the house frequently. 26 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – July 2012 eere. energy. gov
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