Keystone Custom Builders, Inc.

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Standard Features  

Our Standard features include superior grade materials, including the finest quality coatings over extra heavy metal skins and super strong structures

Our knowledgeable team of professionals is ready to provide effective, cost-efficient and aesthetically pleasing solutions to your building needs 

 
 
 

Primary Framing  

Main Frames 

Minimum 50KSI yield strength material. (MBMA guidelines require only 36KSI yield strength material). By using extra-high yield strength material, a smaller web can be utilized which means increased usable space

Main frames are continuous bead submerged-arc welded by automated welding machines. Automated welding of this kind minimizes the possibility for human error for uncompromised integrity. 

All base plates, connection plates, flange brace tabs and clips are factory welded in place resulting in erection time and labor savings. 

End Wall Frames 

Corner and Wind Columns are either cold formed, mill-rolled or built-up "I" sections depending on design requirements. 

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Secondary Framing 

Girts 

Girts (at sidewalls and end walls) are minimum 8" depth. Members are cold formed Z-sections, minimum 16 gauge, up to 13 gauge 55KSI material for superior strength (MBMA guidelines require only 36KSI yield strength material). Girts and Purlins are typically "by-pass" with laps at main frames for extra strength and ease of assembly. 

 

Purlins 

Purlins (at the roof) are minimum 8" depth. 10” and 12” are also available depending on design requirements. Members are cold formed Z-sections, minimum 16 gauge, 55KSI yield material for superior strength (MBMA guidelines require only 36KSI yield strength material). Purlins are lapped at main frames for up to 6' for added strength and labor savings during the erection process. Maximum spacing is 5'-0” on center. 

Eave Strut 

Eave Struts are cold-formed un-equal flange C-Sections. The top flange is built to match the roof pitch, to help to ensure weather tightness at the eave. 

Sheeting Angle 

A continuous 14 gauge Sheeting Angle is supplied for use at the gable ends (rake). The Sheeting Angle provides a place to secure end wall sheets and gable trim. 

Base Angle 

A continuous 14 gauge Base Angle is provided for attachment wall sheeting at the base. The Base Angle is secured to the concrete with powder actuated anchors. 

Primer 

All steel arrives at the factory “black” (unprimed). Following the fabrication process, once all welding drilling and punching of holes is complete, a coat of factory primer is applied to help protect members during shipment and erection. 

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Bracing 

X-Bracing 

Diagonal rod or cable bracing is supplied where required at the roof and walls to absorb and redirect longitudinal loads imposed by wind and seismic forces. 

Flange Bracing 

Angle Flange Bracing is provided for connection at the inner flange of the rigid frame and returns to the purlins and/or girts. These Flange Braces ensure that main frame column and rafter stability under heavy loads. 

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Roof and Wall Panels 

Super strong 26 gauge min., 80KSI yield strength material for both roof and wall panels. (MBMA guidelines require only 50KSI yield strength material). Panels produced from such superior steel offer greater resistance to damage from impact including hail. Only Galvalume® Plus steel with a standard 25-Year warranty is used for superior resistance to the elements 

 

Commercial PBR-Panel (Roof and Wall Applications) 

PBR-Panel has a deeper, 1 ¼” high rib, and 12” on center for extra strength. Stiffening ribs are roll-formed into every panel between the high ribs to reduce “oil canning”. 

Architectural Panel (Semi-Concealed Fastener) (Wall Applications) 

Member fasteners are secured and hidden in the recesses (“flutes”) of this panel. Configuration includes a shallow “V” for a clean aesthetically appealing look. 

Standing Seam Panels 

Minimum 24 gauge steel is used to manufacture standing seam panels in a variety of profiles. Industrial and architectural standing seam panel are available in a number of profiles

Ridge Cap 

We include a die-formed ridge cap, built to match both the slope of your roof and the profile of the panel to ensure weather-tightness. 

Trim and Flashing 

Standard Architectural Commercial trim package includes complete sculptured trim at the rake, eave, corners, framedopenings (including full cover trim at framed openings),walk doors and base for a finished look. 

Color Selections 

A wide variety of colors and finishes for roof, wall and trim are available. All with a comprehensive 25 year warranty. 

                            View Color Selections→

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Bolts and Fasteners 

Structural Bolts 

A-325 bolts are included for all primary member-to-member connections. A-307 bolts are included for all secondary-to-primary and secondary-to-secondary connections. 

Fasteners 

Self Drilling and Self-Tapping Fasteners are supplied for both roof and wall panels. Fasteners come pre-assembled with steel protector caps and neoprene washers. 

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Weather-tightness Package 

Closures 

Closed-cell Neoprene Strips, pre-formed to match the profile of your panel with self-adhesive backing are included with every building to ensure a weather-tight seal against the elements. Closures are provided for the roofline, eave and base. 

Sealant 

3/8”wide, 1/8” thick Mastic Sealant for roof side laps, end laps, and ridge cap is included for a cohesive, weather-tight roof. 

Sheeting Notch 

Designed into every building system is a 1 1/2” X 1 1/2" Sheeting Notch at base. This Sheeting Notch provides added insurance against rodents, pests and the elements. 

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Drawings and Submittals 

Anchor Bolt Setting Plan 

Anchor Bolt Setting Plans include precise building reactions for an efficient foundation design, easy to read columns placement information and clear base plate details including anchor bolt diameter. 

Engineer Certified Erection Drawings 

Sealed by a registered Professional Engineer licensed to practice where your building is to be placed, erection drawings include wall and roof framing diagrams, frame cross sections, sheeting and flashing details. Erections drawings clearly illustrate how to properly assemble your building. 

Letter of Certification 

A Letter of Certification, sealed and signed by a Registered Professional Engineer, specifying the building code and designs load for which your building has been designed will be provided. 

Factory Labeled Parts 

Building System Components are clearly labeled at the factory with easy to read part numbers. These same part numbers are used for your delivery parts list and your erection drawings to speed and simplify inventory and erection of your building. 

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