Frequently Asked Questions

Superior Walls feature patented, insulated, precast concrete wall panels that are formed in a factory-controlled setting and delivered to the new construction site, where the panels are lifted into position with a crane and carefully bolted together and sealed. The walls are custom-designed and built to fit virtually any building type and architectural style, complete with window and door openings. 

Superior Walls foundations are dry, using a special low water/cement ratio concrete that requires no additional damp proofing (US Markets; see ESR-1662). They are warm, with full-length insulation built in for energy savings. Superior Walls high strength 5000+ psi concrete is reinforced with steel rebar and polypropylene fibers for added strength and performance. The wall panels also feature convenient features like built-in accesses for wiring and stud facings for easy drywall installation with screws. Another important feature for builders is the speed of installation. A typical home foundation can be installed in less than one day. The walls can then be built upon or a modular home may be set on the walls immediately after installation 

 Superior Walls uses a footing of crushed stone, along with a steel reinforced footer beam. The purpose of any wall footing is to distribute the wall’s load over a sufficiently large area of soil so that the soil bearing capacity is not exceeded. Superior Walls utilizes a crushed stone footing to accomplish this. This properly prepared layer of clean crushed stone transfers the load from our wall system to the soil. See the SWA Builder Guideline Booklet (MAN 42-9000) for more information. 

 Superior Walls panels are bolted together at the top and the bottom of each panel and a one-part polyurethane sealant is used to seal the panel joints of the foundation system. This one-part polyurethane sealant is specifically manufactured for use with precast concrete products. 

 The original R-5 wall system was delivered with 1″ of DOW insulation with an R-value of 5. The Xi wall system has 2-1/2″ of DOW insulation which has an R-value of 12.5. The Xi Plus wall system is available with an R-value of 21.3 (US markets) and 23 (Canada). 

Superior Walls brand products are manufactured and installed by independently owned and operated factories licensed by Superior Walls of America, Ltd.. Each of these independently operated factories (Licensees) provides a limited warranty on their Superior Walls products. The warranty covers defects in workmanship and materials as well as sidewall water penetration. Warranty terms may vary because of state and local regulations and the market strategies of individual licensees. Service under the warranty is solely the responsibility of the licensee. 

The depth of the crushed stone footing is determined by considering the allowable soil bearing capacity on the building site and cross-referencing that with the combined footing load per lineal foot, using a table in the SWA Builder Guideline Booklet (MAN 42-9000 BGB – US Version or MAN 42-9027 BGB – Canadian Edition).

Because Superior Walls are custom made for specific home designs, wall lengths vary. Maximum wall length is determined by panel weight, allowable crane reach and foundation geometry. The standard wall heights are 4′-0″, 4′-8″, 8′-2″, 9′-0″, and 10′-0″. Not all wall heights are available in all areas 

To comply with building code requirements, the wall must be supported at both the top and bottom of the wall prior to the placement of backfill. This means that the framing/decking connection at the top of the wall must be completed and the floor slab at the bottom of the wall must be installed prior to backfilling. 

Superior Walls panels are produced with a brushed finish that may simply be left as is, or that readily accepts multiple exterior finishes like paint, stucco, cultured/manufactured stone, or stone or brick veneer through the use of ledges that are cast onto the walls during the manufacturing process. Major paint manufacturers typically recommend the use of elastomeric acrylic paints and other similar masonry paint or stain products with precast concrete products. Stucco and cultured/manufactured stone should be applied per the manufacturer’s recommendations, which could involve first cleaning the wall panels with a pressure washer, then prepping the wall surface by etching the surface with a wire brush or a masonry acid wash solution.  Wire lath could be used to span the panel joints, but must be attached with masonry screws. 

After the corner studs and all blocking are in place, the Superior Walls panels are ready for drywall.  A minimum ½” drywall is recommended to span the stud spacing.  It is best to leave a ½” gap between the concrete floor and the bottom of the drywall to prevent moisture absorption into the drywall.  This moisture can cause drywall deterioration and paint finish problems.  Attach the drywall using 1” drywall screws (fine thread / sharp point).  A solid bead of construction adhesive should be applied to the top bond beam and the face of the stud. 

Yes. Following an evaluation of issues like point loads, bearing walls, and frost protection, a window or door can be added to an existing Superior Walls foundation. See your Superior Walls rep for guidance when considering adding a door or window. As with other procedures that involve revising the existing foundation wall, an engineer or other person competent in applying the structural design principals involved should be consulted. 

Yes. Superior Walls has a variety of insulated foundation systems that can be used for various home designs. Our AG (Above Grade) Wall Systems can be used in conjunction with foundation panels to create a complete wall system with multiple stories. Check out our product offerings for more information on the different wall foundation systems we offer and their applications.