MOBILE HOME TRAINING Mobile Home Sidewall Retrofit WEATHERIZATION
MOBILE HOME TRAINING Mobile Home Sidewall Retrofit WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 1 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Learning Objectives MOBILE HOME SIDEWALL RETROFIT By attending this session, participants will become aware of: • How mobile home walls are constructed • Why mobile home walls account for a significant amount of heat loss • A cost-effective technique for re-insulating wall cavities • Specialized tools and materials for re-insulating wall cavities 2 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Wall Insulation MOBILE HOME SIDEWALL RETROFIT Photo courtesy of PA WTC Photo courtesy of WV GOEO 3 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Wall Components MOBILE HOME SIDEWALL RETROFIT Top Plate Siding 2 x 3 Wall Studs 1 x 2 Banding Bottom Plate Ventilated wall cavities? 4 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities MOBILE HOME SIDEWALL RETROFIT Photo courtesy of Tony Gill 5 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Tools and Materials MOBILE HOME SIDEWALL RETROFIT Specialized Tools Materials • Long, straight pry bar • High-density, unfaced, 3. 5”, R-13 fiberglass batts for 16” center stud spacing • Lexan or galvanized stuffing tool • 6 -mil plastic sheeting cut into strips • Aluminum hex-head screws 6 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
A Specialized Stuffing Tool #1 MOBILE HOME SIDEWALL RETROFIT 5/16” x 1’ X 8’ Lexan stuffing tool HD R-13 fiberglass batt Photo courtesy of WV GOEO 6 -mil plastic sheeting 7 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
A Specialized Stuffing Tool #2 MOBILE HOME SIDEWALL RETROFIT Improving the stuffing tool • Using a propane torch, apply indirect heat to create a slight 5 -degree bend in the first 12 inches of the stuffing tool • The bend will allow the tool to clear obstructions when stuffing the wall cavity Photo courtesy of Tony Gill 8 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #1 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO 1. Remove old screws from the bottom of the wall panels 2. Screw the connecting panels together 9 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #2 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO 3. Remove staples with a long pry bar 4. Remove the old insulation 10 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #3 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO Note the poor condition of the original insulation 5. Look inside the wall cavity 11 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #4 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO 6. Place the unfaced batt on top of a precut strip of plastic sheeting 7. Fold the first 6 inches of plastic and insulation over the top of the stuffing tool 12 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #5 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO 8. Stuff the wall cavity all the way to the top 13 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Stuffing the Wall Cavities: Step-by-Step #6 MOBILE HOME SIDEWALL RETROFIT Photos courtesy of WV GOEO 9. Remove the stuffer. 10. Tuck the end of the insulation into the bottom of the wall cavity. 11. Repeat for all wall cavities. 12. Refasten the siding. 14 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
Summary MOBILE HOME SIDEWALL RETROFIT • • Because of their low insulation levels and ventilated wall cavities, mobile home walls lose and gain heat very quickly. Re-insulating mobile home wall cavities: – – • Is cost-effective. Reduces heating and cooling costs. Increases occupant comfort. Requires basic tools and materials. Fabricating specialized equipment such as a wall stuffing tool makes this retrofit very achievable for a well-trained weatherization crew. 15 | WEATHERIZATION ASSISTANCE PROGRAM STANDARDIZED CURRICULUM – August 2010 eere. energy. gov
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