317-859-1422 winproindy@gmail.com

  Cellular Composite Siding

                                                         Celect® vs. Fiber Cement

When you compare Celect® Cellular Composite Siding by Royal® with fiber cement siding, our superiority is apparent on every level—from ease of installation, to lack of maintenance and degradation, to weatherability and superior energy efficiency.

Fiber Cement



  • Follows dips and contours of wall
  • Unsightly seams with caulk lines
  • Visible nail heads
  • Patented interlocking joints** create seamless appearance and help to keep walls smooth and straight
  • Eliminates unsightly caulking
  • No gaps, buckling or wavy lines


  • Typically requires diamond blades for cutting
  • Heavy—200 pounds per 100 square feet
  • Produces crystalline silica dust
  • Due to moisture absorption, requires 6”-8” minimum ground clearance
  • Panel width can vary course by course
  • Requires flashing joints or treating end-cuts
  • May require initial painting or comes in a limited color palette
  • No need for special equipment: boards and trim can be easily machined with standard woodworking tools
  • Superior strength-to-weight ratio means easy loading onto scaffolding
  • Low-VOC product emits no harmful particles or workplace hazards
  • Can be installed to grade
  • Interlocking joints make Celect® easier and faster to install
  • Requires no caulking
  • Gravity lock feature keeps individual courses straight and helps reduce installation time



  • Depending on climate or location, may require repainting (typically carries a 15-year warranty)
  • Wood trim requires maintenance
  • Chips and scratches must be filled
  • Requires ongoing caulking
  • May require mold and mildew treatment
  • Estimated $14,000* in maintenance costs over 30-year home ownership period




* Based on a typical estimated cost of $7,000 every 15 years for repainting 3,000 equare feet of siding



  • 25-year warranty on coating, and any nicks or scratches can be easily touched up with paint
  • Kynar Aquatec® coating staves off rain, dust, heat, wind and even pollution
  • Celect® highly impact-resistant finish can handle heat, cold and errant baseballs better than anything
  • Instead of butting against itself, Celect® siding locks together perfectly, so there’s no need to fill in the gaps
  • Any dirt, mold or mildew can be readily cleaned away with a quick spray of a garden hose
  • Provides substantially lower expected maintenance cost over the life of the home


** Patent No: US 8,402,707 B2 (2013)
Patent No: US 8,596,000 (2013)

Window Pro is proud to use Royal® Building products for Celect® Cellular Composite siding installations. hundreds of Central Indiana residents have chosen Window Pro and Celect®Cellular Composite for their new siding needs.


What is Cellular Composite Siding?

Made to astound and built to last.

Premium siding from Celect® Cellular Composite Siding by Royal® is made from recyclable, state-of-the-art cellular materials. Which means it faithfully reproduces the deep grain texture and solid heft of real wood. And every style is equally unaffected by mold, mildew, weather and the effects of time.


Cellular Composite Siding Benefits



Built to quietly astound.

The Celect® Products don’t brag, or boast. It just sits back and amazes. It looks as handsome as natural wood, but that’s where the similarities end. Its interlocking joints keep moisture out and almost completely eliminate seams, which means it not only looks authentic, it’ll never warp, buckle or shift like wood…would.



Sorry fiber cement, this isn’t going to be pretty.

With Celect®, you can forget about mold, fading, deterioration, scrubbing and messy maintenance crews. You can also forget about painting, repainting, caulking, re-caulking and delaminating like fiber cement is famous for.   Celect®  is all about virtually maintenance-free great looks that never quit. Year after year, decade after decade.



Great value. And R-value.

The Celect® Cellular Composite Siding by Royal® is warmer in the winter, cooler in the summer and greener all year long. In addition to being completely re-usable and 100% recyclable, it provides an R-value that’s twice the thermal value of any other comparable material in the market. In other words, it’s as much of a renewable investment as it is a renewable material.

Highest Remodel Resale Value  Many studies, including recently Remodeling magazine, indicate that of all of the different ways you can invest in upgrading your home, Cellular Composite siding adds the most value to your home should you ever sell.



Celect®  Premium Siding won’t rot, split, crack, warp, twist, cup, box, blister, flake, peel, delaminate or suffer loss of structural properties due to termites, microbiological growth or other decay.



Call today to find out why hundreds of Central Indiana homeowners have chosen Window Pro as their contractor of choice for all of their siding installation and repair needs                      

 Best of Houzz 2016    Pro Remodeler