PI2: Insulate 100% of hot water pipe with >R-3

Purpose

Installing insulation on hot water lines helps keep the water warm between uses, saving energy and conserving water. Insulation also helps eliminate condensation on cold water pipes and prevents them from freezing in areas such as unconditioned crawl spaces.

Criteria

Insulate all hot water pipes to R-3 or greater using polyethylene, neoprene, fiberglass or other insulation types. Fit insulation tightly around hot water pipe, face seam down and secure insulation every 2 feet using wire, tape or clamp. Install insulation on all piping elbows to adequately insulate 90-degree bend.

Exemptions

Hydronic heating systems are not required to insulate pipes in slabs or other approved materials intended for radiating heat into home and therefore do not apply to this criterion.

Confirmation 

• The builder must present documentation demonstrating compliance of criteria to the EarthCraft Technical Advisor prior to submitting project for certification. 
• The EarthCraft Technical Advisor will visually confirm compliance of criteria at mid-construction.