The unbelievable speed in erecting prefabricated buildings is in the news again. A Chinese construction company was able to build a 30-story hotel structure in 15 days and this is not the first time this kind of amazing fete was achieved. Unlike traditional construction, prefabricated steel buildings are designed and engineered through the use of the latest computer software and manufactured in state-of-the-art facilities under controlled conditions.
As a result, they have unmatched durability, providing longer years of reliable performance in any type of weather in spite of their fast and easy construction. The design of steel building incorporates the final purpose of the structures with the prevailing building codes and loadings factored in, as well.
Modern prefabricated steel buildings can be customized based on the specific needs and preferences of customers. Today, most suppliers offer free, no-obligation quotes online. Usually, customers secure quotes or bids from different suppliers and make comparisons before doing the purchase.
Comparing steel buildings should be done carefully and meticulously. Don’t just look at the bottom line. Make sure that you are comparing one and the same set of specifications before you compare the price.
First, make sure that the bids have the same building dimensions – length, width and eave height. Eave height is the height of the outside wall and not the interior clearance. Next, check the roof pitch or roof slope. This number is the ratio of rise over run in inches, which tells you how steep the angle of the roof will be. The most common roof pitch for steel buildings is 3:12, meaning that the roof would rise 3” for every 12” of width.
What about the number of bays or the bay spacing? The space or interval between two support columns is called a bay and bay spacing greatly affects the costs of steel buildings.
Next, check the building code specifications. Are they the same? Building codes are a set of rules, which indicates the minimum levels of safety for new buildings. Although some states have their own sets of rules, the most common code used in steel buildings in IBC 2006 or 2009.