One of the main objectives of Hansen Pole Buildings is to educate our customers on pole building construction. Over the past couple of years we've kept track of the "most asked" questions and grouped them together under general categories. If you have a question you can't find the answer for here, please call us: 1-866-200-9657
Or go to the Contact Us page for quickest response to your questions.
Click on a general category below to "open" that section.
BUILDING CODES
Will I need a building permit for my building?
Usually. In some areas no permit is required to erect agricultural or detached accessory buildings. We have no way of knowing for sure and you will have to research the answer to this question yourself. We always recommend you check with your local building inspector before ordering a building from any supplier or builder.
We cannot emphasize this area enough! Before you ever contact anyone for a price on a building, CALL YOUR LOCAL PLANNING DEPARTMENT! They are the ones who will have the final say about whether you can build, or not.
What do I ask the planning department?
- Give them the physical address or parcel number of your property.
- Tell them what you would like to build and where on your property you would like to locate the building (being mindful also you can’t build too close or on top of drainfields or septic systems).
- The planner can tell you if you will be able to construct the building you want, where you want it. In most cases these issues can be handled by a telephone call.
- On occasion you will need to draw a scaled drawing showing your property lines, existing structures, proposed building, etc., and visit the planning department in person.
When I spoke with your office, I was given loading specifications. Can I assume they are correct?
No! There are literally thousands of county, city and township building departments across the country. While we make every effort to have the most current loading information on hand, it is impossible for us, or anyone, to always have all of the information 100% correct. Building departments can and do change their requirements. There are also many jurisdictions with different requirements for different areas. We cannot guarantee you will be able to get a permit based upon the code requirements we use. You MUST check with your local building department to confirm all loading requirements before buying a building.
Why do I need to verify my loading conditions? Shouldn’t the engineer do that?
The confusion here is “codes” and loads. Codes are the books which provide the requirements for design. Loads are the actual climactic conditions applied to a building, based upon its individual location (wind, snow, seismic, etc.). Every site has its own unique characteristics. Engineers must know the building code. The code book does NOT provide specific wind and snow loadings for a given location. There is not a printed “load” book as it would require daily updating, as conditions change due to neighborhoods being developed or forests are logged.
My building does not require a permit. How do I know what snow load it should have?
While we have climactic data from many regions, snow loads are generally determined from a value which will only be exceeded once in 50 years. If you receive less than 22 inches of snow, you generally have a snow load of 20 pounds per square foot. For greater snowfalls, multiply the snow depth by 2.36 and subtract 31.9. (Example: 48-inch depth, 48 X 2.36 – 31.9 = 92.9 psf) This is a “ground” snow load. Roof snow loads are determined by multiplying the ground snow load by several factors to account for wind blow off and slope of roof (among other factors).
What is the difference between B and C and D wind exposure?
From the 2006 IBC Code book:
BACK TO TOPExposure B. “Urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions having the size of single-family dwellings or larger”. These obstructions must prevail in the upwind direction for 1,500 feet for buildings with a mean roof height less than or equal to 30 feet.
Exposure C. “Open terrain with scattered obstructions having heights generally less than 30 feet. This category includes flat open country, grasslands and all water surfaces in hurricane-prone regions.” “Exposure C shall apply for all cases where Exposures B or D do not apply.”
Exposure D. “Flat, unobstructed areas and water surfaces outside hurricane-prone regions. This category includes smooth mud flats, salt flats and unbroken ice.” Exposure D shall apply when these conditions, “prevail in the upwind direction for a distance of at least 5,000 feet or 20 times the height off the building, whichever is greater. Exposure D shall extend inland from the shoreline for a distance of 600 feet or 20 times the height of the building, whichever is greater.
When I call my building department, what should I ask?
CHECK OUT THE FOLLOWING 14 ITEMS WITH YOUR BUILDING CODE DEPARTMENT:
1 .What Building Code does your department use (typically 2000, 2003 or 2006 IBC or IRC)?
2. What are the required setbacks from streets, property lines, existing structures, septic systems, etc?
3. What is the design GROUND snow load? If you are in a location that has snowfall, what is your snow exposure factor (called Ce)? Or, more simply, is your roof fully exposed to the wind from all directions, partially exposed to the wind, or sheltered by being located tight in among conifer trees which qualify as obstructions?
4. Flat Roof Snow Load? (if not calculated from GROUND snow)
5. Design "three second gust" wind speed - in miles per hour? (minimum of 85mph)
6. What is the Wind Exposure? (B,C or D)
7. Are "Wind Rated" overhead doors required?
8. Allowable Soil Bearing Capacity? (1000, 1500, 2000, 4000 psf or similar)
9. Is an engineer soils test required? (If yes, this is something you will need to have done by a local soils engineer.)
10. Seismic Category? (A, B, C, D-1, D-2)
11. Are wet-stamped engineer signed structural plans required? Or, do only the roof truss drawings need to be sealed? Are complete calculations required with plans? Are the exterior finished (showing roofing and siding) elevation drawings required? Will more than two sets of plans need to be submitted?
12. Verify your occupancy category. Most buildings which are not frequently occupied by the public (not a home, business or municipal building) represent a low hazard to human life in the even of a failure and are ASCE Category I. This information can be found in IBC/IRC Table 1604.5 and is not to be confused with the use and Occupancy classifications from Chapter 3 of the code.
13. In areas with cold winters, is the frost depth greater than 40"?
14. Does your department have any unusual code interpretations, amendments or prescriptive requirements for non-engineered buildings which could effect this building? If yes, get a copy.
With this information in hand, you can provide it to us, or anyone else you are getting a quote from. This will make sure you are getting an accurate price for your actual, site specific, loading conditions.
What is the difference between an agriculturally exempt and a permitted building?
In our book . . . nothing. We treat both of them the same. Every Premier building kit we sell is engineering reviewed. Like you, we have seen some tremendously low prices on “agricultural” buildings and wonder what is being left out to make them so much cheaper than the same company’s “permit ready” buildings.
Can you make changes to your construction in order to meet local building codes?
We could. However, because our buildings are designed to meet the most current nationally recognized building codes, it is rarely an issue.
What if I need permit drawings?
For a portion of the value of your building (with a minimum of $795) we will provide two sets of engineered plans and calculations for your building (in states where available). This price also includes our construction manual. Or, when you actually order your building, we will prepare and send you two sets of 24” x 36” blueprints by Priority Mail, normally within two weeks.
Can I get elevation drawings of my building?
Yes. For a nominal charge, we can produce them for you at any time. Some Building Departments (usually in California) require them in order to obtain a building permit.
Is there anything excluded from your plans or calculations?
Electrical, plumbing, HVAC, insulation, drywall, non-structural interior walls or partitions, provision for flooding, energy/heat loss calculations or materials not provided by Hansen Pole Buildings, unless specifically indicated otherwise.
What about foundation plans?
All steel buildings require you to find and hire your own engineer to design the foundation. Hansen Pole Buildings’ plans include a typical pole building foundation design, specific for your building size and design loadings. In this design, the post foundation is classified as an isolated, shallow foundation. In the event any other foundation type be desired, or required, you will need to hire an appropriate engineer. If an engineered soils test is required by your building department, you will need to hire a local soils engineer to prepare a report prior to our engineer doing the foundation design.
What if I can’t obtain a building permit from your drawings?
Provided you have furnished us with the correct code and loading information, and purchased our Platinum engineering package, we guarantee you will not be denied a permit for any structural reason. In the unlikely event you are denied a building permit, for structural reasons only, we will promptly refund your money.
What if I need fire separations or other fire protection?
Provisions for firewalls, sprinklers or other fire separations or protections are normally beyond the scope of our plans and designs. Only if specifically indicated on our quotation, would they be included.
How much will my building permit cost?
Truthfully, we have no idea. In some jurisdictions the cost is as low as five dollars. These, however, tend to be the exception. The costs of permits vary greatly from one location to another. Generally, the permit cost is based upon an assumed building valuation determined by your building department. A phone call to your building department can usually give you a very close estimate of the actual permit cost. You will note this assumed building cost could be much greater than what you will be paying for your building. We do know of instances where customers have successfully argued their case of having paid much less for the building and gotten the permit fees reduced.
What if my inspector requires my drawings to be stamped or sealed by an engineer?
Let’s put it this way, if an engineer didn’t design your building, then who did? For your own protection and peace of mind, we recommend to
NEVER BUY A BUILDING WITHOUT PLANS STAMPED OR
REVIEWED BY A REGISTERED PROFESSIONAL ENGINEER OR ARCHITECT!!
We have engineers registered in practically every state. Your blueprints can be stamped by our engineer and sent to you by Priority Mail. Some building departments also request engineered design calculations, which our engineers can provide.
Our Value-Line buildings come standard with non-engineer sealed plans. Value-Line buildings with jobsite built roof trusses are not designed to be used as permitted buildings. Engineer sealed plans for Value-Line buildings with pre-fabricated roof trusses are available at a nominal fee.
Besides your engineered plans will I need anything else to obtain a building permit?
Normally only a “plot” plan. Your plot plan is an important piece of the permit process. While it does not have to be architecturally beautiful (or usually drawn exactly to scale), it is important to give accurate dimensions between your new building and all other structures, property lines, permanent easements and septic systems. It will show the planning and zoning staff the location of your home and any other permanent structures on your property.
Label which direction is north and include your name, street address, legal description and/or tax parcel number on it. Most jurisdictions now have preprinted forms to assist you in drawing up your plot plan. Some building departments require a “floor plan” detailing locations of interior rooms, etc. These are outside of our scope of work, and if required, will need to be provided by you. With your plans-only or complete building order, we will provide structural drawings for you to obtain your permit.