See all forum discussions about NC-2009 EAp2

Subscribe to new posts about NC-2009 EAp2 Post a new question aboutNC-2009 EAp2

See LEEDuser’s guidance on NC-2009 EAp2»

FAQs about EAp2 :

Can the Passive House Planning Package (PHPP) be used to energy model for LEED?

Is it acceptable to model a split-type AC with inverter technology compressor as a heat pump, like modeling VRF?

Can the Trace 700 'LEED Energy Performance Summary Report' by uploaded to LEED Online in lieu of the Section 1.4 tables spreadsheet?

A portion of our building envelope is historic. Can we exclude it from our model?

Which baseline HVAC system do I use if my building has no heating or air conditioning?

For an existing building, do I need to rotate the model?

Our project has a diesel backup generator. Should we include it in our energy model?

Our project has a large process load—75%. Despite our efforts to make an efficient HVAC design, the cost savings are minimal. What can we do to earn this prerequisite and be eligible for LEED certification? Is there any flexibility in how we model the p

Can SHGC be higher in the proposed than in the baseline model?

Our process load is higher than 25%. Do we have to justify that?

Do I need to justify the electrical and fuel rates I am using in my model?

Our local code references ASHRAE 90.1-2010. Should I use that for my documentation, or 90.1-2007?

Can I claim exterior lighting savings for canopy lighting even though a baseline model cannot include shading elements?

The project is built on a site with existing exterior lighting installed. How should this be accounted for?

Can mezzanines open to floors below be excluded from the energy model?

How do I provide a zip code for an international location?

For a project outside the U.S., how do I determine the climate zone?

For a project outside the U.S., how do I determine the Target Finder score?

Do hotel rooms need automatic light shut-off control?

How commonly are the 90.1 mandatory compliance forms submitted as part of EAp2/EAc1?

View answers »

Forum discussion

NC-2009 EAp2:Minimum Energy Performance

Heated pool covers

Ricardo Sá

Director of Sustainability

Edifícios Saudáveis Consultores (503 910 767)

LEEDuser Basic Member

79 thumbs up

July 31, 2013

I’m currently working on a LEED certification of a public natatorium that has three swimming pool tanks. I’m aware that ASHRAE 90.1 mandatory requirement 7.4.5.2 requires that all heated pools are “equipped with a vapor retardant pool cover on or at the water surfaces”. This doesn’t seem to be a problem for this project in two of the pool tanks since they have regular rectangular shapes. However, the third pool tank – that will be used for recreational activities only – doesn’t have a regular shape. It has more like an elliptical “bean” shape type and we are having problems finding pool covers suitable for this specific shape (standardized market solutions do not exist and a special cover must be designed with very high costs that will lead to very low paybacks).Furthermore this swimming pool represents only 20% of projects' total pool area. Having said this, do you think that LEED certification of this public natatorium is possible without covering the “bean” shape swimming pool?

Post a reply

Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Wed, 07/31/2013 - 16:24

You have to meet the mandatory provisions. I can see that an automatic pool cover would be a problem. Have you looked into a manual cover stored on a deck-side reel. This should be easily doable and relatively inexpensive.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.