July 31, 2009
Setting Attic Trusses at the Diamond Building
The trusses have arrived at the Diamond Building in Bergen Park. Most of the upper roof was designed using long span attic trusses.
After several design studies and preliminary pricing, we determined that for this building, the attic trusses would provide the square footage that we needed for the best price.
Value Engineering like this can often affect the design of the building and the interior spaces, but in this case, we were able to anticipate the structural decisions early on because of our ability to design structure in-house. The roof will begin sheathing next week.
July 31, 2009
Tired of all the holdown straps?
You can eliminate many of the metal holdown straps from the upper floor wall to the main floor wall by modifying your OSB wall sheathing layout. When the OSB wall sheathing is continuous over the floor framing section or lapped with the rim board uplift loads can be transferred.
If you are utilizing prefabricated wall panels you can still have the OSB extend to the middle of the rim board. Just have the OSB extend below/above the plates as build in the shop. The only caution is, extra care is needed to prevent the overhanging OSB sheathing from being damaged during shipping.
This concept can also be utilized at the foundation sill plate to help reduce uplift loads that would otherwise require embedded straps such as STHD10RJs. In that situation, cross grain bending is not desired on the sill plate as the load transfers to the anchor bolts. The cross grain bending can be removed from the equation using mud sill anchors (MAS) attached to the exterior face of the OSB sheathing in lieu of anchor bolts. A great solution when utilizing prefabricated walls.
Typically, when building with wood you want many smaller fasteners that distribute the load out evenly rather than a few large fasteners concentrating the load.
EVstudio | Architecture and Engineering | Denver and Evergreen
July 30, 2009
Are you trying to sell your home and the inspector found a few ‘concerns’? Or maybe, you’ve been wondering about those cracks in the foundation wall and what you should do about it? EVstudio can help you determine the best course of action. Our experienced team can identify any situation and provide you realistic options to correct the structural deficiency, if needed.
The fact is concrete is going to crack. It is typically due to shrinkage during the curing process or from the expected design loads. Residential foundations typically have just enough reinforcement to support the design loads and soil pressure, not to prevent minor cracks.
Another issue lately has been elevated structural floors that have buckled from lateral pressure or have been damaged by moisture. With the addition of vapor barriers below the structural floor, moisture is hindered from entering the crawlspace and stays in the soil. That has improved the crawlspace condition but appears to cause other issues. One issue is when the vapor barrier is wrapped around the steel column. Water condenses on the steel column and damage from rust occurs. I’ve been finding more and more columns that need replacing. To prevent any structural components from being damaged by moisture, the vapor barrier should always be below any structural components.
EVstudio worked with QCI Structural Solutions to repair this home and other residential and commercial projects. They are a great team to work with and has done an excellent job.
Replaced Damaged Steel Column by QCI Structural Solutions
EVstudio | Architecture and Engineering | Denver | Evergreen
July 29, 2009
The City of Boulder is close to passing the “Compatible Development in Single Family Neighborhoods” changes to their zoning code. It looks like the second reading will be August 18, 2009.
The big impact is that certain single family zone lots will change from a .8 FAR (floor area ratio) to a .45 FAR. This will reduce the size of a home that can be built on certain lots by 44%. The code may have as little as a 60 day window before it goes into effect on these properties, severely limiting options for those property owners.
The language is complex (like all Boulder zoning) but if you have a single family lot in Boulder it is highly advisable to get involved now. In my opinion this change is very heavy handed and generally FAR is a clumsy way to dictate design.
If you need more information read their website or let us know.
July 28, 2009
We submitted for an AIA Colorado award and one of our great clients, Ethan Dulsky, wrote us a letter of recommendation. Timberwood Development’s recent project really turned out well.
July 28, 2009
The Copperas Cove, Texas office of EVstudio has recently received notification from the City of Temple, Texas that we have been added to their pre-approved list for architectural services.
The letter we received was from the Director of Purchasing for the City of Temple and indicated that after a review of our firm’s qualifications, we have been placed on the City of Temple’s pre-approved list for architectural services. By qualifying for placement on this “short list”, EVstudio will now be able to eliminate the need for routine RFP’s and RFQ’s for projects with the City of Temple over the next two years. As departments within the City need architectural services they may now contact our firm directly for services related to those projects.
July 27, 2009
Denver has added new rules for 2009 requiring verification of setback conformance for any one or two family dwelling.
Where it is designed to be built within 1′-0″ of the setback, the building department requires a site plan indicating dimensions of the outside face of the foundation and the projection of the wall and any eaves into the setback space. The wall section also must show the relationship to the setback. While we have always shown this information, we’ll now take additional care in calling it out.
What may be more interesting is that the City of Denver now also requires a Professional Land Surveyor (PLS) to verify the formwork for the foundation walls prior to pouring the foundation. They have to certify that it is within the setback on the form.