How to determine the cost savings of ins
I am going to be doing a small job at the end the month installing Hardiepanel on the second floor of a house. I will be removing the T-111 and may replace the fg if old and/or moisture has been a problem.
The second floor is cantilevered 20″ and we will install Hardiepanel under the cantilever. If there is no insulation in the cantilevered floor, it will be added.
I am also considering adding 1/2″ rigid foam, seams taped, to the exterior wall (R2.5) and the cantilever. i can’t put anything thicker because the house has no eaves.
Is there a site I can reference to determine the cost savings of adding the foam? The homeowner wants to know if the $400 – $500 investment is worth it.
Dave Otto — Otto Construction — Pittsburgh, PA
Edited 10/1/2007 10:38 pm ET by DOtto