New Energy Code Guidelines
On January 1, 2019 Utah builders need to meet the updated Utah Energy Code guidelines. To help you get a handle on the changes, we’ve outlined three important updates to the code that may affect your business.
Update 1: Building Thermal Envelope Options
The updated energy code allows builders two options for meeting the Building Thermal Envelope requirements.
Option 1: Builders have a strict list of 15 requirements that all have to be done in order to pass. These are outlined on IECC Table R402.4.1.1 (Click Here to see all 15 requirements listed out).
Option 2: Performance-based compliance with a blower door test. A much simpler option, all builders need to do is pass a blower door test with results that are ≤ 3.5 ACH50 (Not sure what ACH means? Read our article here).
AeroBarrier offers an automated and 100% guaranteed solution for meeting this requirement.
Update 2: Duct Sealing
Stricter guidelines go into effect for determining when you need to seal ducts, air handlers, and filter boxes.
Ducts, air handlers, and filter boxes need to be sealed when the following criteria are met:
- If your air handler unit is located outside of the thermal envelope (such as in an unconditioned garage or attic)
- OR if 25% of the ducts are located outside of the thermal envelope
Update 3: Energy Rating Index Compliance
Different Climate Zones require different HERS rating scores. Utah is comprised of three different Climate Zones; depending on where you build, the required HERS score needs to be equal to or lower than the following:
- Climate Zone 3 – 65
- Climate Zone 5 – 69
- Climate Zone 6 – 68
For a reference, here are the climate zones for Utah: