Hello all and a happy new year,

I am wondering if anyone knows of a thermostat that can also measure and display humidity and CO2 levels?
We are trying to find a way to cut down on the number of sensors used along with the amount of wiring needed.

Thanks!

Page 509-LEED Reference Guide 2009-SCAQMD 1168 [2005]-Table 1 shows the VOC limits for:
PVC Welding - 510 g/l
Plastic Cement Welding - 250 g/l

Most common brands/manufacturers like Oatey, Ipex, Weld-on are labeling their product name as 'PVC Plastic Pipe Cement' and product use as "solvent cement for PVC Plastic Pipe". Their product VOC is less/equal 510 g/l.
For example - http://www.weldon.com/pdf/weldon/sds/W-O795LoVoc_10-13.pdf

From the Table 1 above, shouldn't the VOC limit for these products be 250 g/l?

We have an K-6 school project which is mostly views-compliant. One issue we are having in getting above 90% views requirement is the coat area at the rear of the classroom.

The students enter the classroom from the rear (facing the windows) and immediately adjacent to the door is a 1300 mm high coat rack. This area is obviously not a teaching space, and students are not expected to spend any time there when not hanging up coats.

Does anyone have experience in sub-dividing a space such as this, where the views requirement for the occupied space is more than met, but the overall 'access to views area' is decreased by an unoccupied portion of the room?

Thanks for your input!

Does anyone know if either prereq EA - Minimum Energy Performance, or the Optimize Energy Performance credit need a third party review as it did under the CaGBC's LEED 2009? It hasn't mentioned it anywhere in the Guide?

We are installing alternative-fuel refueling stations, with preferred parking. We are also creating preferred parking for carpools.

An announcement has been made company-wide that these spots are available and must be reserved. If no one reserves them, must they remain empty to comply?

Does the ETSC prerequisite apply during construction as well?

We have a project with some floor areas designed to be ceramic and quarry tiles.
Can someone advise if the two above need to meet floorscore standrads.

your comments are appreciated

I don't believe putty can be categorized as an adhesive or a sealant, but the proposed putty in our project has a VOC of 161 g/l and is being used for filling nail holes and other defects in refurbished wood windows. It may not seem to be a large amount, but we do have eleven stories of wood windows. Does this fit anywhere or is it ignored by LEED?

It appears that this credit can not be earned if a project does not meet some water demand through nonpotable sources. Can anyone confirm if not only consideration but actual use of nonpotable water must be implemented to earn the Integrative Process credit?

In general the credit language suggests it is more about process than prescriptive solutions. Page 47 of the Reference Guide says:

"Assess and quantify how potential nonpotable supply sources can be used to o"set potable water use for the water demands calculated above. Identify at least one on-site nonpotable water source that could supply a portion of at least two demand components."

But page 51 the Reference Guide states:

"This credit also requires that at least one on-site nonpotable water supply source contribute to at least two water demands; for example, a nonpotable water supply source such as harvested rainwater used for both irrigation and toilet flushing satisfies this requirement."

To Whom It May Concern:

I'm looking for guidance on how unit heaters, radiant panels and electric heaters that are in the proposed design are modeled in the baseline building. Keeping in mind that as this is a LEED Canada building and as per the LEED Canada 2009 Supplementary Energy Modeling Guide, if the proposed building has zones with no mechanical cooling, then there is also no cooling in the baseline building.

The building I'm modeling is an indoor soccer field house with associated support spaces (locker rooms, washrooms, spectator areas, offices, underground parkade). The building falls under System 7: VAV - Chiller - Boiler (Area > 150,000 sq. ft + NG boiler). As many areas receive transfer air from the field house (e.g. locker rooms), I have only included areas that are directly conditioned in the proposed building in the System 7 Baseline. Is this approach correct?

As per G.3.1.1, there is meant to be a System 7 modeled for each floor of the building. In the basement there is a parkade and a number of mechanical/storage rooms that have hydronic unit heaters. The Parkade has a MUA unit and exhaust fan system which falls under an exception as the fan only operates a few hours per day based on CO levels and is thus modeled as System 3. It doesn't make sense to me that the mechanical/storage rooms that only have unit heaters should be modeled as a System 7. So how should they be accounted for? Similary, the third floor contains the main mechanical room which is conditioned via unit heaters in the proposed design, so again it does not make sense to me to model as a System 7.

Furthermore, there are numerous spaces that are not directly conditioned via the primary air system and have local electric heaters (stairwells) and hydronic radiant panels (locker rooms with transfer air from field house). What would be the best approach to model these areas?

My initial guess would be to model the electric heaters in the Baseline the same as the Proposed (same capacities). Similarly, for the radiant panels. However as the unit heaters have a fan component, I'm not sure about the correct approach to model these in the baseline.

Any guidance is greatly appreciated.

Don