WHAT IS A COMCheck? Commercial Energy Calculation Service Starts at Just $179
A COMCheck calculation helps designers, builders, and/or contractors to determine whether commercial buildings and alterations meet the requirements of the IECC or a number of state energy codes. 
COMCheck also simplifies energy compliance determinations for building officials, plan checkers, and inspectors by allowing them to quickly determine if a commercial building meets the code.
COMCheck works by performing a simple U-factor x Area (UA) calculation for each building assembly to determine the overall UA of a building.
The UA that would result from a building conforming to the code requirements is compared against the UA for your building.
If the total heat loss (represented as a UA) through the envelope of your building does not exceed the total heat loss from the same building conforming to the code, the software generates a report that declares your building is compliant with the code.
 
 
 
WHAT IS A MANUAL N?
Commercial Load Calculation
A Manual N calculation a is complete light commercial (15 tons or less)  calculation used to determine how much heating/cooling a building needs to stay cool and dry during the summer or warm during the winter.
The physics of heat loss in a commercial building remain the same as in residential but the use varies significantly.
The particular  activities of the business and occupancy can significantly increase the cooling loads up and decrease the heating loads.
 
WHAT IS A RESCheck? Energy Calculation Service Starts at Just $129
A RESCheck calculation helps designers, builders, and/or contractors to determine whether new homes, additions, and alterations meet the requirements of the IECC or a number of state energy codes. 
RESCheck also simplifies energy compliance determinations for building officials, plan checkers, and inspectors by allowing them to quickly determine if a low-rise residence meets the code.
REScheck is appropriate for insulation and window trade-off calculations in residential detached one- and two-family buildings and multi-family buildings three stories or less in height above grade, such as apartments, condominiums, and townhouses.
REScheck works by performing a simple U-factor x Area (UA) calculation for each building assembly to determine the overall UA of a building.
The UA that would result from a building conforming to the code requirements is compared against the UA for your building.
If the total heat loss (represented as a UA) through the envelope of your building does not exceed the total heat loss from the same building conforming to the code, the software generates a report that declares your building is compliant with the code.