Forum discussion
NC-2009 IEQc8.2: Daylight and Views—Views
I know that the configuration of integral blinds does not count for either IEQ8.1 or 8.2, I just wondered if anyone has had any experience in installing the venetian blinds with the concave side up, to redirect light up to the ceiling (acting like mini light shelves) while also reducing glare.
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Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
December 7, 2010 - 9:52 pm
I have venetian blinds in my office and you can sort of turn them around so that they are basically configured as you describe. It definitely produces a nice effect with the light in terms of distributing the light without glare.There are also products designed to work exactly this way, and could help with IEQc8.1 depending on the compliance path.
Renee Shirey
Stantec422 thumbs up
December 8, 2010 - 11:25 am
Hmmmmm - just realized I should clarify. They aren't venetial blinds on the project, they are just regular mini-blinds - so they are the narrow curved slats vs the venitians which would be wide and flat.
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11477 thumbs up
December 8, 2010 - 11:27 am
Okay.... I want to make sure that if you have a question, that we've done our best to answer it... where do we stand?
Renee Shirey
Stantec422 thumbs up
December 8, 2010 - 11:33 am
I was hoping someone had experience with actual calculated improvements, to help justify attempting the strategy. There is a minimal increase in price, but I don't want to do it unless we could prove the benefit. My gut says it would have some minor improvement in comfort, but I have no proof or time to get our engineers to run more analysis. Hopefully I'll get to further investigate it in a future project...
Allison Beer McKenzie
Architect, Director of SustainabilitySHP Leading Design
LEEDuser Expert
646 thumbs up
December 8, 2010 - 11:39 am
Renee- we have attempted this exact strategy. We have tried to demonstrate improvement in daylighting by using upside down mini blinds, but we did not have any luck with simulation software showing an improvement. In the end we went ahead and installed the blinds concave side up because we had anecdotal "evidence" that there would be a quality of light improvement, but we were never able to "prove" it or get credit for it in LEED. This has been a couple years, so perhaps newer daylight simulation software will do a better job, but I am not sure.