One course of cement shingles taken off so insulation can be blown into the walls
Example project
- Home
- 1920s one-and-a-half story house in Oregon City with gray cement shingles over the original wood siding
- Original request
- Blow insulation into the empty outside walls through holes drilled behind one row of shingles
- Testing
- Shingles and the old building paper tested; the shingles come back positive
- Area
- One course of shingles around the house at each floor, about 280 sq ft
- Work
- Shingles kept wet and taken off whole after the five-day DEQ notice
- Timeline
- Five-day notice, then two working days before the insulation crew starts
- Cost
- $3,100
In this example, the owners of a 1920s house in Oregon City want insulation blown into the outside walls, which have none. The insulation crew drills from outside, and the house wears gray cement shingles over its old wood siding.
