Understanding and Improving Indoor Air Quality Webinar

We, as a society, spend 90 percent of our time indoors. It is extremely important that the air inside our buildings, both residential and commercial, is providing the healthiest environment possible.

I will be hosting a webinar on Tuesday, April 8 from 3:00 – 4:00 pm EST on the topic of Understanding and Improving Air Quality.

This is a newly accredited program for us taking a deeper dive into the topic which is touched upon in other webinars that we have offer.  It is a more focused discussion on how to improve indoor air quality. 

We have talked about this topic and provided education on what indoor air quality is but this program will identify actual steps that can be taken to improve the quality of indoor air.

Let’s get together – inside – and explore the ways to improve our indoor air.  You can sign up right here for the webinar Understanding and Improving Indoor Air Quality (IAQ) – (GBCI Approved).

Come with questions and try to stump the presenter!

The Art of Building Science – Soup to Nuts Webinar Series

We are trying something new that we hope is helpful for those of you who would like to take a deeper dive into Building Science but can’t take time out of a nutty work day to do so.

Because I live Building Science every day, I occasionally lose sight of the fact that not everyone sees how all of this information works and fits together.  Sadly we live in a bullet point world so let’s give the big picture the opportunity to talk. Let’s give the silent masses the opportunity to ask questions and engage with folks who work with this knowledge on a daily basis in real world scenarios.

The early evening timeframe for this series may have particular value for younger architects and building professionals who do not get to take time out of billable hours but could jump online at the end of the day.

We are offering the opportunity to see the Big Picture of Building Science through a series of three webinars starting at 5:30 pm EST over the next three months that will take you through topics such as Heat Flow, Moisture Flow, Air Flow, Indoor Air Quality, Evaluating HVAC or Mechanical Systems in the Building Envelop and Sound Control Problems.

Be forewarned, each webinar is a half hour longer than the last.  It is like a three course meal that will leave you both full and wanting more.

The first session will be held on Wednesday, March 12 from 5:30 – 6:30 pm EST.  If you are looking to expand your knowledge of Building Science, this accredited course is for you!

Register and join me for The Art of Building Science Part I.

Transparency and Green Labels for The Home

Product Life CycleWhile I was waiting for my coffee to brew this morning in the office, I started reading the ingredients on the back of the sweetener I planned to use. There was one ingredient that I didn’t recognize. Being a scientist, I am naturally curious so I looked it up. I was shocked to find out that the sweetener contained an ingredient that emits formaldehyde above 92 degrees Fahrenheit. So I chose a different sweetener.

How fortunate am I that I caught that and had the resources to understand what it was telling me. But how many people have no idea what some of this means? It made me think about the benefit and value of the emerging forms of transparency about the products that we buy and use in our homes. This information is very insightful and when we make it available in a form that people can digest and employ it has real value to customers and consumers.  An informed consumer is a better consumer and manufacturers are beginning to embrace the concept of transparency through Life Cycle Assessments, Environmental Product Declarations and Health Product Declarations. If you are interested in learning more about transparency in the building materials industry, I addressed this issue in a blog post.

For a more in depth and current discussion of the topic, please consider attending the webinar I am conducting on Tuesday, February 18 from 12:00 – 1:00 pm EST titled Publications for Product Life Cycle Assessment.  This course is accredited with the American Institute of Architects (AIA) and the Green Building Certification Institute (GBCI).

 

IBS Insights: Water Damage Woes

NormAbramNorm Abram from This Old House made a special visit to the CertainTeed booth today and answered questions from IBS attendees, which included the question:

What is the number one downfall that destroys homes?

Water. And it’s not just homes that are built with wood. There are buildings that I have seen over the years that were made out of metal and because of moisture they are destroyed. In some ways, you really need to treat a house like a human being. It’s similar to the clothes we wear that keep us warm or the athletic wear that wicks water away. Why not learn from that?

We agree wholeheartedly with Norm, which is why CertainTeed had a dedicated building science team to tackle moisture management issues. And, there’s a host of resources at www.certainteed.com/buildingscience to help builders address the mayhem caused by unwanted moisture.

Freeze and Thaw of Winter Can Cause Problems for Your Roof

It’s been a crazy winter!  And we still have two months to go. Have you noticed all the potholes on the roads? Well, obviously, the potholes are the result of the freeze/thaw we have been going through.  The rapid swings in temperature can wreak havoc on the asphalt roads and cause them to fail.

imagesCA630XEYWhat’s the next biggest asphalt thing in your life?  It’s your roof.  Every time you see or don’t see and hit a pothole, think about your roof.  It might be worth the preventive maintenance to have a professional get up there and take a close look.  The continual heating/cooling can cause ice dams which occur when accumulated snow on a sloping roof melts and flows down the roof until it reaches an area cold enough and then refreezes, typically at the eaves. The ice formed in such a way often grows and “backs-up” the roof pushing its way under the shingles and damaging everything in its path. This is a situation that you want to identify early.

If you have a professional look at your roof and need to make repairs or replace your roof choose your installer very carefully.  A roof that is installed improperly will not be covered by a manufacturer’s warranty. Make sure you choose an installer who not only is very experienced but is also credentialed by the manufacturer whose product they install. Very often you can find credentialed contractors at the manufacturer’s website. While there, why not also look for contractors who participate in “take-back” programs to divert your old roof from going into a landfill.

Remember, whether you dodge or ford those potholes, they might actually be doing you a favor by reminding you to think about your roof.

Wall Assemblies for Maximum Efficiency: How Many Layers is Too Many?

SimplexOPTIMABuilding professionals spend a lot of time dealing with production construction which has dialed in efficiencies and productivity to provide the maximum assembly for the cost per square foot.  The reality is in standard construction you build things in five or six layers. This is the standard in terms of building a wall system more efficiently and we have gotten it down to a science.  Generally a six layer home will give you a solid, energy efficient, comfortable home.

Occasionally, I work with builders on projects that remind me of possibilities beyond what is the status quo.  I recently had an opportunity to work with a builder who was building a custom home whose wall systems had 13 layers.  This wall had so much redundancy and robustness built into it that I just had to ask for a chance to visit the project and see this masterpiece being built.

This was the homeowner’s instruction: They wanted a thick wall, they wanted a silent wall, they wanted a highly efficient wall for them to own.  That’s one of the key’s to this discussion- the owner is focused on what comes afterwards- not what happened before. To achieve this goal the builder is employing a combination of traditional masonry materials and cutting edge products and systems.   

In a similar fashion, a project that CertainTeed has been involved with at the Navy Yard in Philadelphia with Penn State achieves a similar goal but in a lighter and perhaps less massive assembly – to create a highly efficient wall system that can provide comfort, improve indoor air quality, better acoustics but, and here’s the rub- to still be affordable by more typical consumers.  This was done by using a 2 x 8 construction – providing a deeper wall cavity – A Blown-in-Blanket Insulation System, Weather Resistant Barrier, a Smart Vapor Retarder and Air Barrier System, a Wallboard Solution, Rigid Insulation on exterior and Insulated Vinyl Siding. This created an R30.5 exterior wall.

In both homes, products were used to address acoustics, indoor air quality and moisture control.  Do you need 13 layers?  Probably not but the pressure is certainly going to be on what layers remain to do more than they have in the past.

Thoughts?

 

Opening the Door to Better Classroom Acoustics

Slatington Elementary ClassroomLast year, I was presented with a unique opportunity to apply our building science research into a real-life application — the renovation of an elementary school in northeastern Pennsylvania. Originally built in 1973, the school was transformed from an open concept interior space into individual state-of-the-art classrooms. Superior acoustical comfort, which can contribute to improved student performance and teacher retention, was a top priority in this field study as well as an analysis of the overall indoor environment that included air quality, thermal comfort and visual comfort measurements.

Our goal was to investigate the impact of installing different, high-performing interior acoustical ceiling and gypsum wallboard system solutions in six new classrooms constructed in the third grade student wing. Acoustical tests were conducted in each classroom to determine sound absorption and interior partition sound transmission levels, as well as major sound flanking paths.

As a leading manufacturer of ceilings and wall products, our team is well versed in the myriad of product specifications and configurations for our products. However, during the testing, I had an a-ha moment of sorts regarding the doorways to the classrooms.

Specifically, I realized that even though it is well known that acoustically isolated, airtight door assemblies improve classroom acoustics when used in conjunction with high-performance gypsum board and ceiling products, these elements are often specified independently rather than a comprehensive acoustical system. This is a challenge that I have always been aware of, but seeing it so clearly in this study led us to ask: what could we do about it?

Our curiosity led us to ASSA ABLOY, the global leader in door opening solutions. Through our alliance, we’ve uncovered easily accessible solutions found in door and frame systems, to address acoustical challenges and reduce the sound reverberation that further complicates noise issues in classrooms.

We look forward to sharing more detailed findings during Greenbuild 2013 through a dedicated education session at the Saint-Gobain Learning Lab. Please join us at the session or leave us a comment below to continue the discussion.

An Unsettling Modular Construction Myth Is Put To Rest

SimplexOPTIMARecently, I had the opportunity to debunk an industry myth that blown-in fiberglass loose-fill insulation is not a viable option for new modular home construction, as it might settle and lose R-value while in transit between the modular home production facility and the jobsite. This was one of the reasons modular home builder Simplex Homes had avoided using blown-in insulation on their projects for years. This year, however, they found themselves working with our OPTIMA® blown-in fiberglass insulation while building a Net Zero Energy demonstration structure at The Navy Yard in Philadelphia as part of Penn State’s GridSTAR Experience Center.

The plan was to build, insulate and roof the shell of the structure, using modular construction techniques, at the Simplex Homes production facility in Scranton, Pa., and ship it by truck to Philadelphia. Having never used OPTIMA in a modular construction application and concerned about the settling rumor, the builder consulted me for assistance in the design and assembly of the high-performance wall assemblies. I designed for them a high-performance 2×8 wood-framed wall assembly, which offered a total insulation R-value of 35.4. A key component of this assembly is a Blow-in-Blanket® System (BIBS) for the wall cavity featuring a 7-1/4-inch-thick layer of OPTIMA insulation.

With on-site assistance from one of our product engineers, the Simplex Homes crew was able to easily build and insulate the wall assemblies. The building’s shell was trucked to The Navy Yard this past spring, where the remainder of the interior finishes were added. An inspection after its arrival confirmed that the insulation had not moved an inch. Simplex Homes was impressed by their first experience installing OPTIMA and is now looking forward to working with the product in future modular construction projects.

The bottom line is that fiberglass loose-fill insulation is naturally inert and therefore will not settle or lose R-Value over the years, as long as it is installed properly at its full designed thickness. Blown-in fiberglass loose-fill insulation is an asset to any modular construction project, offering unwavering superior R-value, fire resistance and acoustic control for the life of a structure.

Now that we’ve put this myth to rest, what topic should we tackle next?

Can We Pick Our Future Rather Than Repeating Our Past?

The U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) Version 4 (V4) has been approved and will be become official at the Greenbuild International Conference and Expo in November 2013.  But even after the new version comes out in November, you can register and begin LEED 2009 projects up until the summer of 2015.  This means that for the next two years we will have LEED 2009 projects coexisting beside LEED V4 projects.

These programs are very different especially with regard to transparency issues.  For example, Health Product Declarations (HPD’s), Environmental Product Declarations (EPD’s) and Life Cycle Assessments (LCA’s) are moved in V4 from where they were in LEED 2009. In LEED 2009 they are classified as pilot libraries but now have been moved to materials and resources, credits two, three, and four. This represents a significant change to the materials and resources credits.

The co-existence of two different programs could, potentially, cloud the issues for the end users.  But making incremental steps can help to keep people focused on a sustainable future without feeling that they have to start all over. But does the potential exist for the momentum of LEED to stall because we are not looking far enough into the future?

Consider the Living Building Challenge which is the gold standard for what some advocates envision for the sustainable future. Have they thrown the target so far down the field that it doesn’t need to be continually updated because the goals are not highly achievable today? It sets the bar very high but it does give us a long range goal for future development.

If you want to change the future you can’t do it based upon the past.  Psychologists tell us that our default reaction to a challenge is based on our experience and history. When presented with a situation we tend to lean on the past.  This causes us to repeat the past and impedes our ability to get to a desired better future.

If you want to get to a future that is different than the past, you have to imagine a future not based on the past.  You have to set your target not based on incremental changes because that just builds on the past.  Let’s start by saying “in 10 years, I want to be over there”- now work back from there until now and NOT forward from now until then. I think you’ll find that you end up much closer to where you want to be this new way than you did with the old way.

I, for one, would not want to see our efforts to move toward energy efficient, sustainable buildings stalled or worse, abandoned, because we failed to see a clear path to that future. If we get too caught up in the process, we could lose sight of the purpose.

Beware How You Finish Your Moisture and Mold Resistant Drywall

CTG_FibaTape_Mold-X10_Details_ImageWhy are you spending all your effort and resources on moisture and mold resistant drywall and then finishing it with a standard, drywall paper tape? 

That is what often happens. In high moisture areas such as bathrooms and kitchens you need to make sure that you do not erode the added value of the drywall by finishing with standard tapes. There are fiberglass mesh drywall tapes that provide the best defense against mold and moisture when used with mold-resistant treated paper and paperless drywall. 

As I have pointed out before, you want to remove the presence of food which is one the four legs needed for mold to grow:  right temperature, oxygen, moisture and food – in this case – the paper drywall tape.

Always keep in mind that everything is a system and you need to consider all aspects of the wall assembly and how you want it to perform or you may not get the outcome you were striving for.