UAS FH Construction Update for 4/18/2014
Top Job (April 18)
Get to the top of the Job Ladder by becoming a Roofer. The roofing sub-contractor came on site early this week bringing a work crew of 5 Roofers. Every day these roofers have climbed to the top of the ladder as the Top Job workers on the UAS Freshman Residential Housing project. The sunny warm weather early this week made me wish for my younger days when I also use to be a Roofer. However, today’s rainy weather reminds me in-door jobs are also good.
Roofers Working on Sunny April Day
I use to install standard Asphalt Shingles. Today on the UAS Freshman Residential Housing project, the Roofers are installing Legacy, Styrene-Butadiene-Styrene Rubber-modified asphalt-laminated shingles as manufactured by Malarkey. The standard Asphalt Shingles that I use to install would last about 10 years. One house that we installed new shingles on had five layers of old shingles. (Note: this was before I went to engineering school and found out that houses were not designed to carry the weight of 6 layers of shingles). Design of Asphalt Shingles has come a long way since then and these new Legacy shingles have a 110 mph / 50-year warranty. I hope that you will be around in 50 years to see the replacement of these shingles. However, I think that my warranty will have run out by then. Check out the manufactures website for more information on current roofing products. http://www.malarkeyroofing.com/
The Contractor is making good progress with most of the plumbing, electrical and ventilation pipe works installed in Hall I and Hall II. Hall II has been insulated and the Contractor has brought on a new subcontractor crew that is making the residential rooms look like a real living space. But that will have to wait until next week.
Installing Metal Roof Trim
Notice the Three Layers of Protection here in the Valley Gutter
Stacks of Legacy Styrene-Butadiene-Styrene Rubber-modified asphalt-laminated shingles, ready for Installation.
UAS FH Construction Update for 4/11/2014
Green – Green Insulation (April 11)
There are some small gaps between the metal studs, silver ceiling board insulation and the exterior pink board insulation. This week the Contractor filled in these small gaps with some Green spray foam insulation. If you have ever used spray foam insulation, you know it is great stuff for filling in the gaps around pipes, window jams and other tight spaces. You just spray the stuff in the crack and it foams up, expanding to fill all the small cracks and voids, making a very good insulation barrier. If you have used the traditional spray foam, you will also know that it stinks like crazy.
On Monday when I got on site, I noticed that the spray foam subcontractor had his tailor set up and ready to go. I figured he had not started work yet, because I could not smell the spray foam insulation. I was taken by surprise when I got inside the building and found out that he had completed one whole floor and you could not smell the spray foam insulation. This new spray foam insulation not only Green in Color, but it is Green environmentally.
The Contractor us using HEATLOK SOY® 200 PLUS. This is two component, closed cell, spray applied, rigid polyurethane foam system. This product uses recycled plastic materials, rapidly renewable soy oils, and the blowing agent has zero ozone depleting potential. So it truly is a Green – Green Insulation.
Green Green Insulation
Green Green Insulation has an R vaule of 7.4 (per inch)
The Contractor got all of the windows installed this week.
Watch for the roofing contractor to show up this week. They will be installing a safety railing around the exterior of the roof. He feels that this is more economical than having to work with a harness and line.
UAS FH Construction Update for 4/04/2014
Window Wonders (April 4)
On a cold winder morning when I was a little kid, a beautiful display of frost would cover the outside edges of our kitchen window. It would make an intricate white picture frame of the weeping willow tree in our back yard. Mom put an end to the frost on our windows when she had double pain windows installed. These windows had aluminum frames, so we still got a little frost built up on the aluminum, but nothing that someone would think was pretty enough to make a post card from.
This week the Contractor installed the windows in the UAS Freshman Residence Hall and let me tell you, these are not your mother’s windows. These windows are Low E Coated, Triple Pane, Argon Filled Gap with steel reinforced uPVC Vinyl Frames by EuroLine. There will be no frost build up on these windows.
One common way of measuring the insulating value is by an R-value. The larger the R value the better it is at keeping heat inside the building on a cold frosty morning. For example here are some R-values for some common items.
· R=1.0 - Single glass pane window
· R = 1.2 - Cotton T- Shirt
· R = 1.5 - Wool Shirt
· R = 1.7 - Thinsulate Shirt
· R = 2.8 – Single Sheet of Ply Wood
· R = 3.0 - Double Pane Glass Window
· R = 5.5 - UAS Freshman Residence Window
· R = 5.5 – Two inches of EcoBatt Glasswool Batt Insulation
· R = 20.0 – Six Inches of EcoBatt Glasswool Batt Insulation
Note: For those thermodynamic engineers, the R-values above include layering effects, air film, and good dose of rounding for simplification.
The windows used for the UAS Freshman Residence Housing project has the same insulation value as a layer of Fiber Glass Batt Insulation of the same thickness. So as next year’s UAS Freshmen enjoy the fabulous views from the large windows in the Residence Hall, their parents will be glad to know their kids will remain toasty warm behind a glass window that is Low E Coated, Triple Pane, Argon Filled Gap with steel reinforced uPVC Vinyl Frames. Find out more about our UAS Freshman Residential Housing windows at http://www.euroline-windows.com
Cross Section of Window Frame
Another Great View from Room 251
UAS FH Construction Update for 3/28/2014
Dress in Layers (March 28)
I came to Alaska almost 30 years ago and the idea of dressing in layers is one of the first things I learned. The hard way. Growing up in the Rocky Mountains in the 80’s, the preferred method of staying warm was to bundle up in a nice fluffy down parka. The A-Number-One of cold weather gear was a snowmobile full body suit that could keep you toasty warm at 10 below and 40 mph. After graduating from college I landed a job at the Red Dog mine outside of Kotzebue Alaska. Before hopping on the airplane I purchase myself a brand new winter body suit and being an engineer who always tries to be practical, by new suit was duck flats camouflage. When I walked onto the job site, everyone knew who the green-horn was. A goose in a candy shop stuck out less than I did that day on an artic construction site. I have since gotten rid of my insulated body suit and now have a closet full of under-armor and polar fleece.
The Freshman Residence Hall is dressing in layers. The contractor has finished the pink ridged foam layer on the exterior and has started a new layer of Knauf EcoBatt Glasswool Insulation. EcoBatt is manufactured from sand and recycled glass with fewer chemicals and uses 70% less energy consumption than other Glasswool Insulation. This more sustainable and environmentally manufacturing process produces an insulation that is naturally brown. If you are interested in this building layer of the Freshman Residence Hall, check out the manufacture’s website at http://www.knaufinsulation.us/
EcoBatt Glasswool Insulation
Owens Corning Fomular Extruded Polystyrene Insulation
UAS FH Construction Update for 3/21/2014
It’s What’s Inside that Counts (March 21)
My Dear Ol’ Mom use to tell me “ It’s what’s inside that counts”. She was typically referring to the character of an individual. My coach would use the same saying during our half time pep-talk when we were getting beat by the other team.
Today at the construction site they were covering up all of the wonderful structural steel and I could not help but think of the same saying “ It’s what’s inside that counts.”
Red Iron Cross bracing framed with CFS / Now covered with Plywood
As a Civil Engineer, I take a preference to all of the civil/structural engineering items that have gone into the UAS Freshman Resident Housing project. I have eagerly watched foundation soils compacted, concrete foundations poured, Cold Formed Steel (CFS) framed into earthquake resistant shear walls, trusses span wide distances and red iron steel raised skyward over 5 floors. Then, each of these items have all been hidden from view by plywood, water barrier and insulation.
Today was a little sad for me as the contractor covered up the last of the red iron, never to be seen again. Now I can only take solstice in knowing It’s what’s inside that counts.
UAS FH Construction Update for 3/14/2014
Happy Pi Day (March 14)
Pi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159.
π is a very important mathamatical constant and deserves a day of celebration.
Here is how some folks celebrate π Day
The Contractor has installed a seismic joint in the fire sprinkler system. To prevent waterlines from breaking during an earthquake, the Mechanical Engineer has called for the installation of seismic pipe joints placed at strategic locations in the building. These joints are designed to flex, bend and move during an earthquake. To celebrate π Day this Engineer has calculated the volume of water that will be required to fill this seismic pipe joint.
Volume = π D2 (L)
V = (3.14159)(4=inch diameter pipe)2 (117 inches long)( / (4) = 1470 cubic inches
V = 1470 in3 / (231 in3/gallon) = 6.4 gallons for each seismic pipe joint.
Seismic Pipe Joint
Architects see the Greek letter “π” as an aesthetically pleasing symbol with calming curves and assortment of line widths. This makes it desirable to use in the design of buildings, sculptures and the design of appropriate apparel for Pi Day.
Appropriate π Day Apparel
Thank You, Pua Maunu, one our Architects here at UAS
π is an irrational number, - a number that it cannot be expressed as a simple fraction of a/b.
π is also a transcendental number, – a number that is not the root of any nonzero polynomial having rational coefficients.
The computation of π will continue infinitely without repetition or pattern. Pi’s infinite nature makes it a fun challenge to memorize, and to computationally calculate more and more digits. I have a friend who has memorized pi out to 12 digits. He will have to improve to 20 digits to make it on the www.pi-world-ranking-list.com for North America.
Write a story in the π format 3.14159.
The story starts out with the first word containing 3 letters, then the second word has 1 letter, third word as 4 letters and on and on as long as you want to go. Pi has been calculated out further than you have paper for your story.
We all love another reason to have a slice of Pie.
Apple π Pie
The Contractor continues to make good progress inside the building framing interior walls, roughing in electrical and mechanical equipment. You will notice that we are getting a building of another different color this week as the contractor installs insulation on the exterior. Look for the first window to be installed today.
Building of a Different Color 2 - Pink Exterior Insulation
UAS FH Construction Update for 3/7/2014
Building of a Different Color
The UAS Freshman Residence hall changed color this week as the Contractor installed a black waterproof membrane over the top of the plywood sheathing. If you are into aesthetics, the plywood sheathing had a warm and earth friendly feel. Many would not mind that warm wood look as a final building exterior. Now us Engineering types would be happy to leave the final building exterior this great black waterproof membrane.
Installing Black Waterproof Membrane
The black membrane is composed of two waterproofing materials—an aggressive rubberized asphalt adhesive backed by a layer of high density cross laminated polyethylene. This black membrane is 40 mills thick, has an adhesion force of 3.0 lbs/sq-in and a Permeance of only 0.05 Perms (2.9 ng/m2s Pa). There are not many materials available that when tested in accordance with ASTM E96 that can meet this requirement. This black waterproof membrane is great stuff and provides all the protection that this building will ever need. I wonder if the Architect will let me leave the building this way?
UAS Freshman Residence Hall Black Waterproof Membrane
If not, the building will change color three more times in the coming weeks until we get to the final colors selected by the Architects. To see those colors take a look at the UAS Freshman Housing website at http://www.uas.alaska.edu/juneau/freshman-housing.html
South Side of Building
Two for One.
We hit Two milestones in One week.
The first milestone is that we added two additional subcontractors to the project site. The fire sprinkler subcontractor and the fire alarm subcontractor. The second milestone is that the last concrete floor is being poured today.
Fire Sprinkler Pipe
Fire sprinkler pipe is made from high strength steel and comes to the job site in long 21- foot lengths. The Contractor cuts the pipe to the correct length and then uses a tool to bend a groove in at the end of the pipe. Two pipes are connected together with a pipe coupling. The pipe coupling sets down into this groove and holds the two pieces of pipe together.
Fire Sprinkler Pipe Grooved End
Fire Sprinkler Pipe Coupling
Concrete is delivered to the project site in that standard round barreled cement truck. The concrete is then poured into the hopper of the Concrete pumper truck and then it is pumped up to the third floor of UAS Freshman Residence Hall I.
Although, the concrete pump truck saves tons of work, hauling around a 4” diameter hose filled with concrete is still a lot of hard work.
Still Hard Work
We are glad to have all of the concrete floors poured. This further reduces the delays of bad weather and also gives more area for the contractor to work and to bring in the subcontractors for electrical, mechanical, fire sprinkler, fire alarm, and soon sheet rock.
Fast Concrete? Feb 21
Tuesday evening I stopped by the UAS Freshman Housing project site on my way home from the office. The Contractor poured the third floor concrete deck early that morning and the concrete finishers were still there working putting the final finish on the surface.
The concrete foreman was grumbling “this accelerated concrete is difficult to finish.”
Accelerated Concrete? (Fast Concrete) Contractors have been using cement concrete for thousands of years. In the past 50 years, the developers of Portland Cement Concrete have invented many new products that make concrete stronger, lighter, and faster. They use what are called accelerators to make the concrete set up faster and achieve design strength sooner. Normal concrete will reach design strength in about 7 days and full strength in 21 days. Fast Concrete (Accelerated Concrete) will reach design strength in 3 days. The main advantage of Fast Concrete is that the contractor can remove concrete forms and start building much sooner. In cold weather the Contractor does not have to keep it heated as long.
I must be getting old, because I don’t always think faster is better and often wish that we could all slow down and enjoy life a little more, stop and smell the roses, watch a sunset, read a book, or even sleep in the day after a long hard day of pouring concrete.
This week the Contractor poured the second and third floors of Hall II. This completes the concrete pours in Hall II and has opened up more room for the electrician’s and mechanics to complete their work. The Contractor is pouring the fifth floor of Hall I today and is hoping for good weather to pour the remaining two floors next week.
This weekend there is an Opera at JDHS, gospel choir at the JACK, Olympics on the TV, clear blue skies overhead and the northern lights forecast is a level 4! I can hardly wait. Wish we had an accelerator for Fridays.
Pumping Concrete onto Floor 2 – Hall II.
Framing interior walls on Fast Concrete floor that is just 20 hours old.
UAS FH Construction Update for 2/14/2014
A Room with a View
Want a Room with a View? Enroll for 2014 Fall Semester here at UAS and live in the new UAS Freshman Residence Housing. The past couple of weeks have given us some spectacular sunrises and sunsets over the Mendenhall Glacier. Below is a View from each of the 32 rooms that you could enjoy while attending your first year of classes. Click on the small views to see the full size Room with a View.
Last week here at the construction site and at Eagle Crest we were praying for snow.
This morning we got our wish.
Construction wants the warmer weather that comes with snow so we can pour the concrete floors in the Residence Halls. Eagle Crest wants snow to play in.
With the warmer weather, the contractor has scheduled to pour the concrete floors in Resident Hall II. The concrete pours are on the critical path, so every day of delay in a concrete pour is a day that the construction crews will have to work overtime to make up the lost day. So keep an eye out for the Big Blue Truck that lets us know the Contractor is pouring concrete.
Happy Valentine’s Day from the Construction Site.
Room with a View
Click on a room to see a larger view.
Hall II - Floor 1
Hall II Floor 2
Hall I Floor 2
Hall II Floor 3
Hall I Floor 3
Hall II Floor 4
Hall I Floor 4
Hall I Floor 5