Options for Building the Best Roof for Pre-Engineered Steel Buildings

Roof Options for Pre-Engineered Steel Buildings

Pre-Engineered Steel Buildings are an excellent option for businesses looking for a good investment with lower costs and quicker time tables for construction.

Pre-engineered steel buildings are popular and used in Mini-Storage, Boat & RV Storage, Commercial Steel Buildings, Agricultural Buildings, Industrial Buildings, Manufacturing facilities, Government and Office Buildings, Churches and much more.

With a simple and affordable change in the steel building’s roof pitch, you can improve its exterior appearance, taking it from a drab-industrial look to a modernized Horse Arena or an upscale-aesthetically-pleasing medical center.

Add to this, with changing a building’s roof pitch, you can;

  • expand interior space
  • adds clearance above the eaves
  • dissipates heat in non-air-conditioned structures
  • help the building shed snow and rain easily

Offering Classic Boxed Designs and Pitched Roof Options for Steel Pre-Engineered Buildings

For a practical approach, a steel building can be built with a classic box with a pitch ratio of 1:12. Additional roof pitches create flair and personality with other pitched roof options, to give the structure a more upscale, aesthetically pleasing look, often vital for fitting in with nearby businesses or attracting customers.

Common Roof Pitches for Metal Buildings

Standard pre-engineered steel buildings typically come with low roof pitch roofs ranging from 1:12 to 4:12. These roof pitches save on construction costs and reduce heating and cooling expenses. However, you can add valuable extra space, at not much cost, by installing a higher-pitched roof, like a sloped gable or hip roof.

Types of Pre-engineered Steel Building Rooflines

Gable vs. Hip Rooflines

Two common roof lines used on steel buildings include the more economical choice, gable, and the more aesthetically pleasing, durable option, hip roof line.

Gable Roof lines

Gable (also known as pitched or peaked) roofs slope downward on two sides towards the walls. The walls extend from the eaves to the ridge’s peak on the other two sides, toward the walls.

Hip Roof lines

All four roof sides of a hip (hipped) roof slope downward towards the walls so that the building sits under the eaves of each roofs’ side to create a strong, long-lasting roof. The equal length sides come together at the top forming a ridge.

Metal Buildings with Pitched Roofs

Pitched roofs for metal buildings refer to any roof that slopes downwards in one or more parts, at an angle from the highest point or peak of a sloping roof. The slope of a pitched roof generally ranges between 45°- 60°, improving drainage over a flat roof.

Pitched roofs come in several styles to match the needs and aesthetics of the building project:

  • Single slope, lean – to easily accommodate steel building add-ons or small sheds
  • Gable slopes create the classic triangle shape with two panels, commonly used for churches because they create a steep pitch leading to a cross
  • Hipped pitch gives the building a squared-off profile, allowing for runoff in four directions to reduce soil erosion in any one spot
Commercial Steel Building | Gabled Roof

The Pros of Pitched Roofs

Pitched roofs provide many advantages for pre-engineered steel buildings:

  • More stability than gable roofs
  • Slopes of 4/12-6/12 protect against high winds
  • Quickly shed rain and snow to prevent any standing water
  • Can add extra living space, especially with the addition of a dormer’s
  • Increases the total cubic footage and inside clearance
  • Extra volume lessens heat buildup in non-air-conditioned buildings
  • Higher pitched roofs offer more visibility than low pitched roofs

The Cons of Pitched Roofs

Pitched roofs can cost more than flat roofs for a steel building:

  • Visibility requires more aesthetically pleasing and expensive roofing panels
  • Needs more building materials, which costs more than flat roofs
  • Dormers in a hip roof increase the chances of rainwater leaks

Steel Buildings and Flat Roofs

Flat roofs are an economical and energy-efficient alternative to pitched roofs. The simple roof design gives it an industrial look, which is fitting for storage units, warehouses, etc. However, the slope of a flat roof is less than 10°, which may impede drainage, making them only suitable for low to moderate rainfall regions.

Pre-Engineered Buildings | Flat Roof Options

The Pros of Flat Roofs for Pre-Engineered Steel Buildings

Flat roofs are a less costly option than pitched roofs:

  • Easier to build and cheaper than more complex designs
  • Flat roofs lower energy costs
  • Quick to install flat roofs shorten construction times
  • Can increase usable outdoor space for a garden, solar panels, or gather space
  • Allow safe and easy access to clean gutters, inspect, etc.

The Cons of Flat Roofs for Pre-Engineered Steel Buildings

They are less expensive than a pitched roof, but flat roofs can present with long-term problems depending on weather:

  • May collapse in high wind areas if not properly constructed with adequate supports
  • Winds can create an uplift underneath the overhang, causing a flat roof to detach from the walls
  • Water and snow can accumulate and pool on flat roofs, leading to damaging ice dams
  • Requires additional mechanisms to ensure proper drainage
  • Requires replacement much sooner than pitched roofs
  • Does not allow for lofts or attic space

Austin Building Systems Meets A Variety of Roofing Requirements for Steel Buildings

Austin Building Systems can help adapt your steel building design to your specific roofing requirements by modifying the roof pitch, adding canopies and overhangs, and choosing the right roof for your metal building.

Our FREE quoting process includes a careful assessment of structural integrity and include consideration for your local weather conditions to create a roof that will resist storm and wind conditions while ensuring your building can mitigate easily the effects of ice and snow.

Our design process will add an attractive finished appearance to your building and redirect the water and snow falling from the roof away from the walls and foundation. Austin Building Systems offers multiple, durable roofing panels, in a variety of colors and styles.

To learn more about roofing pitch options for steel buildings, call Austin Building Systems today.

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