Royal® Building Products is a leading manufacturer and distributor of building materials.  They are unique in their vertical integration from raw materials from their parent company Westlake Chemical Corporation through to manufacturing and onto distribution. Royal®Building Products believes the home a person chooses is not just the dwelling, but the neighborhood the home comes to symbolize. Whether through pipes that feed the neighborhood fresh water underground to or through the most visible design details on a private residence, Royal® designs products that enhance the life of a neighborhood. Products that provide low maintenance, save energy, are sustainable and provide a beauty that lasts over the long term.  Royal® Building Products offers traditional vinyl siding under its Exterior Portfolio® brand.  


Exterior Portfolio® is a Royal® Building Products brand.  The Exterior Portfolio® history, culture and success have been built on three attributes:  Listen. Share. Innovate. Listening to the market, sharing what's learned and challenging the norm. Their mission, always, has been to bridge the gap between homeowners and the pros to help them communicate better with each other. The end result: exterior designs they created together.   Exterior Portfolio® is a complete collection of cladding products that will give the face of your home an image you will love. The unlimited design options of Exterior Portfolio have been used to create some of America’s most beautiful homes. Now you can enjoy this same impact with the added value of long-lasting, maintenance-free performance.



If you demand big presence and low maintenance from the same siding, you’ll truly appreciate Elm Grove. Its raised grain finish evokes the timeless curb appeal of real wood, while its durable engineering ensures it will stay that way for many years to come.  Elm Grove provides an array of looks with its available Double 4˝, Double 4˝ Dutchlap and Double 5˝ Dutchlap profiles.

Performance Features

  • Raised grain finish features the texture of real wood
  • No painting. No scraping. Virtually no maintenance.
  • Partial rollover nailing hem provides up to 155 mph wind load performance
  • SlipStop Lock® system is engineered for great-looking installation every time
  • 1/2˝ profile edge enhances the beauty and rigidity of each panel
  • .040˝ nominal thickness
  • Lifetime Limited Warranty




 Protect your home with siding that’s sure to look amazing for years to come with Market Square.® Its remarkably engineered features elevate your home’s beauty while guarding it from the elements – no matter what Mother Nature dishes out. Available in Double 4”, Double 4.5” Dutchlap and Double 5” profiles, Market Square gives your home a strikingly attractive, affordable, natural, lasting look.

Performance Features

  • Beautiful textured grain of forest-grown cedar
  • Special rolled-over nailing hem provides 180 mph wind load performance
  • Integri-Lock® locking system snaps panels securely together for sound installation
  • Extra wide 5/8" profile edge with square bottom edge maximizes rigidity and performance
  • .044" nominal thickness
  • Lifetime Limited Warranty




Founded in 1956, Nichiha Japan first began operations as a hardboard manufacturer, supplying dashboard and other components for the automobile industry. The company’s immediate success was due in part by superior manufacturing technology and a constant drive for innovation.

Although fiber cement was in its infancy, Nichiha’s leadership was energized by its seemingly limitless potential. That drive led to the eventual development of fiber cement cladding; a category that would expand to include over 800 commercial and residential variations produced in 12 manufacturing facilities worldwide including a 300,000 square foot, state-of-the-art manufacturing plant in Macon, GA.

Although they already delivered a high performance fiber cement product in more styles and textures than anybody else, they are constantly developing new products and tweaking the products we already have.  Nichiha is applying its brand of manufacturing excellence and innovation in every corner of the U.S. construction market and inspiring building professionals everywhere to open their eyes to the power of possibilities with Nichiha.



Nichiha’s residential siding products are engineered to give you jaw-dropping curb appeal without back-breaking maintenance issues. Strong construction ensures you won’t worry about rotting, warping or pests.


As versatile and attractive as it is durable, fiber cement cladding has been earning its stripes for decades. Nichiha has taken all that’s great about fiber cement and engineered it into a rainscreen system that stands alone in the commercial construction universe. With the addition of their timesaving clip installation and an ever-expanding offering of finishes and textures, Nichiha gives you the ability to unleash the power of possibilities with fiber cement cladding. 


Nichiha has entered the residential market after finding success in the commercial setting for years.   Fiber cement is a versatile, sustainable, high-performance product that makes as much sense for a home as it does for commercial building. You’ll be impressed with the many and varied looks of Nichiha products, but the performance will amaze you.   Traditional, Modern and even Interior Styles to choose from in finishes including stacked stone, wood, block, shake, stucco, smooth and brick.




With a concern for the environment and  the installers of their products Nichiha formulates their fiber cement products  by reducing the amount of silica  and increasing the amount fly ash. By using fly ash, Nichiha improves the performance of their products and prevents a substantial amount of post-industrial waste from sitting in a landfill. 


Nichiha uses a proprietary stamping procedure to create the vast array of textures they offer. It enables them to create more pressure and have more control than the commonly used rollers of other manufacturers. More pressure means deeper grooves, more shadows and more visual drama. 


Every product they make comes off the line with three protective coatings; 2 coats of primer and an anti-efflorescence coating that prevents chalky residue from appearing. The result is a product that holds paint better and looks better longer.