Austin Building Systems, Inc. offers correctly engineered deflections on commercial steel / metal buildings to accommodate alternate finished materials on the outside walls.
The standard outside wall material is PBR sheeting. The building must be stiffened with 240 deflection when adding alternate materials to the outside of a steel building.
This deflection is engineered to keep the metal building from “shifting” so the alternate outside material will not crack.
It is an important engineering feature that some manufacturers will not provide and will result in problems with cracking surfaces in the long term.
Base Conditions
Many steel / metal building suppliers will not offer details of base conditions and applications for different uses. They also do not show which application is on the metal building quotes.
All Austin Building Systems, Inc. commercial steel / metal building quotes clearly state the type of base condition. This eliminates confusion upon pricing and ordering. Below are the all types of base conditions that are available for standard 26 gauge fully sheeted commercial metal buildings.
Standard Base Angle:
Standard base angle options require a 1 1/2″ x 1 1/2″ notch outside the building dimensions in the concrete slab. For example, with a 50′ x 100′ commercial steel building, the overall slab would be 50’3″ x 100’3″.
This is standard on all steel buildings, and the most cost efficient on building materials. The disadvantage of the notch is that the concrete contractor will have more time and materials in building the notched slab.
Base Trim Option:
The base trim option does not require the 1 1/2″ x 1 1/2″ notch in the concrete, and the trim itself will match the wall color. The advantage of this option is that the concrete supplier does not have to notch the slab, and the slab is the same size as the building. For example, a 50′ x 100′ steel building will have a slab measuring 50′ x 100′.
Deluxe Base Trim:
Deluxe base trim is a one-piece trim, easier to install than standard base trim, and does not require a notch in the concrete slab.
The advantage of the deluxe base trim is that the concrete slab does not have to be notched. The concrete slab is the same size as the building. The disadvantage of the deluxe base trim is that the trim only comes in a burnished slate finish.
Deluxe Base Trim:
Deluxe base trim is a one-piece trim, easier to install than standard base trim, and does not require a notch in the concrete slab. The advantage of the deluxe base trim is that the concrete slab does not have to be notched. The concrete slab is the same size as the building.
The disadvantage of the deluxe base trim is that the trim only comes in a burnished slate finish.
Base Channel with Base Trim:
The base channel with base trim option supports interior liner panels, and improves the overall aesthetics of the building. It does not need a notch in the concrete slab. The disadvantage is that the building materials cost would be more.
Base Girt Option:
The base girt option is primarily used for buildings that will have gravel or dirt floors, typically in agricultural, farming, riding arenas, or basic storage buildings.
The base girt option does require a 1 1/2″ x 1 1/2″ notched concrete slab, notched pier frame support at the frame lines or perimeter footer.