Target goals for Deep Energy Retrofits
|Basements||R-20||Effective R-value (see below)|
|Walls||R-30||Effective R-value (see below)||no thermal bridges|
|Ceiling||R-60||Effective R-value (see below)||no thermal bridges|
|Windows||R-3 (U-.33)||New windows are expensive.||Consider alternatives.|
|Air Infiltration||Less than 0.1 air change per hour|
|Air Quality||Use of Air-to-Air Heat Exchanger|
All combustion appliances should have sealed combustion.
Radon testing before and after Moisture 30-50%
Reduce use of high VOC (volatile organic compound, e.g. formaldehyde) building products as possible
Here’s how the average American home uses its energy:
|Total Yearly Energy Costs:||$ 3,500||60% space heat/cool|
|20% water heating|
|Deep Energy Retrofit, 60% reduction:||$ 1,400||33% space heat/cool|
|33% water heating|
Note: Deep Energy Retrofit concepts also apply to cooling your home in the summer. But then this is COLDclimatehome.com so we will stick to heating issues. GOOD NEWS: A tight, well-insulated house stays much cooler in the summer and is much easier/cheaper to air condition if you choose.