A few years ago, the Philadelphia City Planning department wisely funded the creation of this Row House Manual.
National Fiber (a cellulose insulation manufacturer in Massachusetts!) and dug up a manual on attic insulation based on testing that was done for Philadelphia Row Houses several years ago. Our Holyoke row house attic is a typical of row house attic: it's a long narrow crawl space that's higher in the front than in the back.
Based on our research, the consensus seems to be:
- We should dense pack cellulose insulation where access for air sealing is not possible.
- We should perform air sealing and dense pack cellulose in all other areas (loose cellulose to R-60 is fine, though it has been suggested based on the heights that filling it up would not add much in terms of cost.)
- We should make sure the upstairs bathroom has an exhaust fan (none currently.)
Our municipal utility, Holyoke Gas and Electricity, offers a 0% loan program for up to $5,000 in energy efficiency improvements. We plan to use the program if our application is approved.