Roof Pitch

The angle of a steel building's roof is determined by roof pitch. Roof pitch indicates the rise vertically for every 12 inches of travel horizontally. Our online system allows you to choose up to a 6:12 pitch. There are many considerations with both higher and lower roof pitches. Higher pitched roofs may add to the cost of the building, but can add performance to a building in a heavy snow region. Additionally, you can take advantage of extra space above. High-pitched roofs are less likely to leak and can add style to your building.

Low-pitched roofs require less material and therefore cost less. Also it is easier to heat and cool a building with a low-pitched roof. One major advantage of a low-pitched roof is expandability. If you ever add-on to your building you will be able to add more space while keeping the loss of headroom to a minimum.

Facings as Vapor Barriers

The main function of facings is to act as a vapor barrier. While a vapor barrier may not necessarily be able to stop the flow of water vapor, it does an excellent job of minimizing the rate and volume of the flow. This prevents moisture from accumulating within the insulation blanket and the structure, which translates into consistent thermal values and lower heating and cooling costs.

Facings intended to serve as vapor barriers should be installed on the inner, heated surface of the insulation, where vapor pressure is the highest. This helps in preventing vapor from reaching the cooler air and condensing.

VAPOR BARRIERS PREVENT VAPOR FROM REACHING COOLER AIR AND CONDENSING.

Other Metal Building Details

Fasteners: Self-drilling fasteners are designed for rapid drilling without slipping of the drill point, thus reducing walking and surface marring. The neoprene washer keeps your building watertight as well as providing vibration dampening.

Structural Bolts: We provide all the nuts and bolts to assemble your building through pre-punched holes.

Closure Strips: Our Steel Buildings come with closure strips which when installed provide weather tightness. The closure strips are pre-formed to match the profile of the panels.

Ridge Cap: The ridge cap is designed to match the slope and contour of the roof providing a tight seal along the ridge of the building.

Trim, Flashing, Gutters & Downspouts: All our buildings come with standard trim to give the building a finished clean look. Optional Gutters and Downspouts provide additional protection from the elements.

Plans and Drawings: We provide a full set of anchor bolt plans for the placement of anchor bolts in the foundation. We also provide engineered stamped and certified construction prints. In addition we provide an in depth erection manual to walk you through the erection of your building.

Recommended Installation Methods of Insulation

Roof insulation rolls are cut to lengths that will cover the distance from eave to eave, leaving a one-foot overhang on each side of the building.

1) Start at the end of the building and temporarily secure one end of the roll by attaching the insulation to the eave strut with double-faced tape.

2) Pull the insulation across the purlins with the vapor barrier toward the building interior. Double-faced tape attached to the opposite end of the insulation will keep tension on the roof roll while the metal panels are being attached over the insulation.

3) Install the next roll in the same manner, making sure the rolls are stretched tight, aligned properly and closely butted.

4) Fasten tabs using one of the methods described on the following page. Any rips or tears must be covered with matching facing tape to ensure a tight vapor seal.

5) Trim excess insulation flush to prevent it from acting as a wick and moving water into the building.

Engineered Buildings

Don't be reluctant to purchase an engineered building because you think that it will limit your options. There are unlimited building styles and configurations to choose from. A person needing a metal church building will most likely want a different construction style than someone looking to erect a steel building horse barn. For this reason, engineered buildings are as diverse as the purposes they are used. If you require assistance in addressing your particular needs and specifications many steel building manufacturers offer design services to walk you through the process, some even offer online design programs.

Most pre engineered metal building manufacturers will have a common design that suits your needs, but never hesitate to ask for custom designed plans. A qualified manufacturer should make no hesitation in designing the exact building you desire.