Posts Tagged ‘building science’

Who Stash Is That? Updated…

Tuesday, April 23rd, 2013

How does one celebrate the Mustaches of Building Science?

Well, we’re not really sure, so we made something up.

In preparation for ACI next week, and a late celebration of International Mustache Day (February 24th) we are pleased to present you with our timely game of “Whose Stash Is That?” Game.

The game was originally labeled, “Ew, Whose Stash Is That?” but we changed the name after our Photoshop wizard stopped grossing out after she finished defining the difference between upper lip hair and the nose hair of our various unsuspecting entries.

So, without further ado, or blather..

WHOSE STASH IS THAT?

 

stash #1

Mustache #1

Mustache #2

Mustache #2

Mustashe #3

Mustache #3

Mustache #4

Mustache #4

stash #5

Mustache #5

Mustache #6

Mustache #6

 

 

 

 

Oh, the glory of them all!

Can you match the man to the stash?

Your options are:

  • Brett Dillon
  • Neil Moyer
  • John Proctor
  • Paul Raymer
  • Dave Roberts
  • Peter Troast

Hope the anticipation doesn’t kill you.

One more note, we did not ask permission… umm. Sorry!

Update:  05/1/2013

Here are your results!

Thanks for letting us play. (And don’t be afraid to celebrate Photoshop!)

#1 - John Proctor

#1 – John Proctor

 

#2 - Dillon

#2 – Brett Dillon

#3 - Peter Troast

#3 – Peter Troast

 

 

 

 

 

 

 

#4 - Neil Moyer

#4 – Neil Moyer

bio_res_roberts_dave

#5 – Dave Roberts

 

Raymer

#6 – Paul Raymer

 

Building Science – The Oldest Profession

Thursday, March 14th, 2013

I had the pleasure of presenting with my good friend Allison Bailes at the recent RESNET conference in Orlando.  While watching Allison present, he made the statement that the Canadians or perhaps the Swedish invented Building Science.  It didn’t really hit me then, but this weekend, pondering my own house and sustainability efforts in preparation for a panel at the upcoming ACI Conference I realized that Allison is perhaps short selling our fine industry.  I think we can make a case for Building Science as the oldest profession.

We’ve been putting dwellings together for a very long time.  We’ve been building huts for at least 25,000 years.  Evidence for even cruder shelter stretches back as far as 30,000 years. It’s very likely that we’ve been crafting rough shelters to keep out of the elements considerably further back than that.  Any of us today working to survive in the wilderness would do what we can to stay  warm, dry, out of the wind and feel more safe than we would otherwise.

greatbathatdawn24

Many moons ago I visited Mohenjo-daro (awesome website Dr. Mark Kenoyer!) in Pakistan.  It’s an archaeological site, part of ancient Harappan civilization. It’s somewhere around 5000 years old and had toilets, street drainage systems and a variety of other mod-cons.  You need only look at the archaeological record to see that we’ve been doing building science as long as we’ve been building.  And of course, as we’re human, we’ve been improving as we go, forgetting much of what came before, making mistakes, discovering

Nez-perce-couple-teepee-1900

new (and old) techniques and materials.  We continually blend the best (and worst – Amish miracle heater anyone?) of what we have today with the knowledge of our forbearers to advance the state of building science.  That is my point really – not only is Building Science the oldest profession – but that we are all building scientists in the applied fashion.  We tweak and adjust our structures, we do stupid stuff, but we also do brilliant stuff.  We orient our tents to face the opening away from the prevailing wind, we orient our homes to take advantage of the sun (except when we do a stupid thing like bring a design from England and plunk it down in New Zealand facing the same direction it did in England – Ooops – the Sun is the other direction down there! – Thanks to Ben Adams for telling me about that).

Vernacular architecture is the fancy term for recognizing that we build our dwellings to take advantage of what’s locally available to us and address the local conditions we face.  We generally make mistakes when we don’t at least understand the vernacular and ensure that whatever design we are proposing takes the same care to address the environment.  We’ve gotten lazy with our vernacular in no small part because of our current (and temporary) abundance of cheap fossil fuel.

450px-Case_à_la_chefferie_de_BanaHigh ceilings in hot regions, steep roofs in snowy regions, openings positioned to catch ocean breezes; that’s us evolving, that’s vernacular and that’s building sciencekejia1 – we’ve been at it a long time.  So thanks Canada (and Sweden) for “modern” building science, but building science is old, perhaps even the oldest profession.

Steve Byers.epic.0021Steve Byers
CEO
EnergyLogic, Inc.

One Big Use of the HERS Index

Thursday, November 1st, 2012

One of the best (and perhaps obvious?) uses of the HERS index is to enable homebuilders to draw a very clear distinction between the homes they build and existing homes that are on the market.  Much of the focus for builders right now is to distinguish their homes from the glut of existing homes on the market, many of which are priced significantly lower than new homes.  While most buyers certainly know that a new home will be more efficient than an existing home, few have any idea of just how much better any given home is.

Enter the HERS Index, which provides a buyer with a concrete means of seeing just how much more efficient new homes are than existing homes.   For example, a typical home that EnergyLogic performs an energy rating on in Colorado has a HERS Score around 70.  A typical existing home will have a score well above 100, most commonly around 130.  It’s a relative index, with low scores being better scores.  So, a home that is a 70 is nearly twice as efficient as a home at 130.  The HERS Index is the foundation for most efficiency and green programs.  The excellent blog “Nice House, But Is It Legal?”, from the Rocky Mountain Institute has a fantastic graphic showing where various programs and codes fall on the Index.

The HERS Index is a powerful tool for builders to demonstrate the superiority of their product versus the existing home competition.  Builders across the nation are adopting the HERS Index as part of their marketing programs both to compete with existing homes but also to compete with other new homes.  In many areas, builders, working with energy rating firms, are developing marketing plans that have the HERS Index at the core of their message to potential buyers.  The simplicity and multiple value add aspects of performing a HERS Rating; quality assurance, code compliance, process improvement (just to name a few) are making energy ratings ever more sensible for builders today.

Steve Byers
CEO of EnergyLogic

The Pretty Good House High Plains Style

Monday, May 14th, 2012

In keeping with a theme… We were inspired to add a regional perspective to the Pretty Good House idea, written up in the Green Building Advisor by Michael Maines and continued by  Allison Bailes at Energy Vanguard, here is Part 2 of his effort.   I asked our exceptional staff of HERS Raters and Auditors for their thoughts.  Here is Steve Eagleburger with  his thoughts.  Steve is also a PHIUS+ person and quite passionate about PassiveHaus among other things.

(Steve Byers)

So what does that mean? Is current code pretty good? Is Energy Star version 3 pretty good? I would say yes they are. When you compare houses built to code today to houses built say, 20 years ago there have been major improvements. The codification of air barriers is one example. The introduction of house tightness and energy modeling is another. Energy Star version 3 is bringing in thermal bridging issues, duct leakage, quality installation and HVAC system commissioning, all of which leads to a better performing house. So where to go from there? Semantics are everything when selling a product or an idea, so I would say rather than shooting for “pretty good” let’s go for “a little bit better”. How can we get there without major cost and retraining of trades?

First thing to do in our high desert/plains climate is let the Sun in! We have an abundance of free solar energy and it’s a simple proposition to face a house within 15 degrees of South. It may take some educating of developers and planners to swing new suburbs towards the sun but it can be done. We must also control summer sun with overhangs and minimize west facing windows. Here comes the cost issue- builders must start using low u-value/high solar heat gain coefficient windows on the south side. This cost could be recouped by installing fewer windows on the north and west side.

Now that we’ve pointed our house in the right direction we need to insulate and air seal properly. Energy Star and the IECC are heading in the right direction but there are too many loopholes. Houses need to be wrapped head to toe with at least R-5 of rigid foam above grade. Period. Advanced framing does little to reduce energy use. Foundations should be R-20, R-10 under slab, 2×6 R-23(+5) walls and R-60 in the attic. Mechanical rooms need to be treated as exterior spaces and sealed tightly or all appliances need to be sealed combustion. Houses we test are already coming in at around 2 ACH50 or better, so let’s get them down to 1 ACH50.

We can build this way without major retraining or cost adjustments but will the homeowners understand how the home operates? It’s been said that there are no zero energy homes, just zero energy homeowners. As an energy auditor I’ve been in homes built 50 years ago and no one has ever been in the attic. Countless times I’ve seen window shades drawn on a bright winter day. We all know we’re supposed to change the oil in our cars on a regular basis so why shouldn’t we understand that putting a bag over the combustion air inlet to stop that cold air from coming in the basement is dangerous, or that when the Sun shines in it warms up the house, or that 2” of ratty old fiberglass in the attic just isn’t acceptable. So let’s spend some time and resources educating homeowners.

-Steve Eagleburger

 

 

Building Science Funnnies – Duck Blasting

Friday, February 24th, 2012

Funny BS – Building Science

Thursday, February 23rd, 2012