Resources
Kynar vs Siliconized Polyester Colors
KYNAR: When it comes to building with metal, there are 2 main paint systems to be considered. Kynar colors, also known as Hynar or PVDF is considered the premium of the two colors. Fading, as measured in hunter units, is the smallest amount of color change that can be noticed with the eyes. Kynar fades less than the other system (SMP) by about 2 units and is a softer paint system. Kynar is typically recommended for architectural roof and wall panels and especially when specifying bright colors as opposed to more earth tone colors.
SMP: Siliconized modified polyester is a high performing paint system often found on commercial, industrial, residential and agricultural metal projects. It is a harder paint than kynar, therefore, less prone to scratches during installation. SMP systems do have greater fade and chalking as compared to Kynar by about 2 hunter units, however, consistency in fading across a building section (typically roofing) is often the more important consideration when it comes to overall aesthetics. SMP color selections are less expensive than Kynar colors so the choice will depend upon the variables that have the highest importance for a project. Both systems high performance characteristics and will be effective for metal roof and wall system choices.
Horizontal Run Wall Panels
Wall panels can be run horizontal. While there are many choices available in standard profiles, common choices for exposed fastener wall panels ran in this configuration, are reverse run PBU and 7.2 panel profiles. There will be additional framing cost associated with this option although it is not typically very significant given the entire project scope. Horizontal run metal wall panels add a very nice aesthetic when designing steel buildings in this fashion.
Trim & Metal Roof / Wall System Details
Waldroop Steel offers exposed fastener and architectural metal roof and wall panels as stand alone systems and with Waldroop pre-engineered steel buildings. While there are shared aspects with all cladding systems there are also many and significant differences which will impact how systems should be assembled for long term weathertightness and performance. Some building designs may use different materials that will transition and tie together and so these situations require specific details. The length of panels and dimensions of buildings will also impact system details and may require special expansion and contraction conditions. Waldroop Steel believes in the performance and integrity of metal building products. We look forward to assisting architectural professionals, steel erectors, all industry professionals and end users in determining what systems will work best for your design and providing details that function well and look great!