TRANSFORMING WOOD TO STONE DECKS ACROSS AMERICA

Silca System® Frequently Asked Questions

What is Silca System®?

Silca System® is a deck inlay sub flooring grid that spans the space between floor joists to provide a super strong substructure for deck flooring. For more detailed information, check out our Home Page and About Us.

What kind of deck flooring material can be installed with Silca System®?

Your deck flooring options are almost limitless: natural stone pavers, travertine, blue stone, brick pavers, slate, marble, granite—in a variety of shapes, colors, and sizes. (NOTE: Silca System® does not include finished deck flooring at this time. All finished flooring is supplied by the customer.)

What are some of the advantages of using Silca System®?

Silca System® is an American-made, UV stable product.  The durable Silca Grate™ grids are designed to withstand freezing temperatures and the harsh effects of the sun.  Unlike deck boards which are known to warp, crack, distort, split, fade, and promote mold/mildew, natural stone and brick pavers are easily maintained and durable.  Silca System® enables you to install these heavy-duty materials on your deck, eliminating the need for the time-consuming labor and expense of sealing and staining a wooden deck.

What tools are required for installation?

Drill or impact driver, Circular or reciprocating saw, Goggles, Measuring tape, Hammer.
Visit our How It Works page for recommendations and tips on installing Silca Grate™.

How do you connect Silca Grates™ to the floor joists?

Center the Silca Grate™ on the floor joist and fasten  down with six #9 three-inch deck screws coated for pressure treated lumber. Make sure the screws are placed into the holes at the edge of the grate. Click here to see a video tutorial that will walk you through the process.

Is it easy to cut Silca Grates™?

Yes. For customized cuts around posts or dryer vents, use a circular saw, table saw, or sawzall.

Can Silca Grates™ be installed over an existing deck floor?

No.  Wood and composite flooring trap water and moisture, creating an environment for mold and mildew.  Wood and composite deck boards also warp and distort over a period of time, making an unacceptable surface for proper Silca Grate™ installation.

Weight and Dimensions of the Silca grate?

The Dimensions  of our Silca grate are as  16 wide , 18 long  and 1 ½ thick and weighs approximately 4 lbs.

How do I apply stone to my steps?

When Applying stone to steps we recommend using sure bond 190 to adhere them

How do you adhere pavers to Silca Grate™?

Pavers are naturally designed to fit together without moving. Their rough edges, when placed side-by-side, create tension, locking the pavers in place.  With that built-in design and the finished edge of your deck, your pavers will remain permanently placed.  If you are using polymeric sand between pavers, the sand will harden like concrete, giving you extra insurance that your deck flooring won’t go anywhere.  For places where you can’t edge and want to insure that your pavers won’t move, use Surebond 190.

How do you finish the outside edge of the deck?

You can glue  the pavers you used for the deck flooring around the edge, or you can use pressure treated lumber, cedar, or redwood as edging.

What makes Silca Grates™ structural?

Silca Grates™ are based on the hexagonally structure of beehives and manufactured from engineered polymers into grids that are 1 ½” thick.

Can Silca System® be installed on roof tops?

Yes. Silca Grates™ can be installed in conjunction with roof pedestals, providing a structural surface for stone, brick pavers, or astro-turf.

Can I purchase Silca System® locally?

To locate a Dealer near you go to our Dealer Locator page or call our Customer Representative at (330) 821-1585.

How do I place an order for Silca System®?

You can call us at 330-821-1585, send us a message via our Order page, or visit our on-line store at http://order.silcasystem.com

How is Silca System® shipped?

Depending on the size of the order, we will either package Silca System® in cartons and ship it via UPS or, for larger orders, stack it on a pallet and ship it by LTL common carrier.

Is Silca System® ICC (International Code Council) certified? YES

ICC-ES_Mark_FinalSilca Grate™, manufactured by Silca System’s ® recently received an evaluation report ESR# 3748 from ICC Evaluation Service (ICC-ES), providing evidence that the Silca Grate™ meets code requirements. Read the Press Release here…

Deck Preparation

  1. Verify the deck structure is sound
  2. Check for wood rot and solid mechanical joints
  3. Make sure joist are 16” on center
  4. Make sure joist are level and more importantly level to each other
  5. Make sure joist are the correct size to support weight of selected decking product, use Silca design® tables located on the web site
  6. Recommended installation of porcelain pavers
  7. We recommend that you use a geotextile fabric on top of the Silca grate™
  8. We recommend you use spacers glued to the corners of the paver and then glued to the geotextile / spacers can be cut or modified to fit as needed for desired stone pattern
  9. We recommend using polymeric sand
  10. We do not recommend using exterior mortar to fill your joints or adhere your stones

Recommendation for natural stone application

  1. Natural stone can be adhered directly to the Silca grate™ we recommend Surebond 190 this can be done as a perimeter glue where the interior stones will remain in place by virtue of weight and friction or each stone can be glued down (Stone must be evenly cut) Natural stone can be installed the same as standard pavers
  2. We recommend using polymeric sand
  3. We do not recommend using exterior mortar to fill your joints or adhere your stones

Recommended installation of non- gaged flag stone

  1. Non gaged flag stone installation is possible with Silca grate™, however in this instance two layers of geotextile fabric and base of bedding sand needs to be used and all sides of the deck need to contain the sand and stone. As you lay each stone down it must be seated in the sand and then and leveled to the stone adjacent to it. Try to keep the joint lines between stoned to a minimum width This process needs to be repeated through the entire installation. The stone will not by its nature be completely level, their will me high and low spots

Recommended installation of gaged flag stone

  1. Gaged flag stone can be adhered directly to the Silca grate™ we recommend Surebond 190 this can be done as a perimeter glue where the interior stones will remain in place by virtue of weight and friction or each stone can be glued down (Stone must be evenly cut) Natural stone can be installed the same as standard pavers
  2. We recommend using polymeric sand
  3. We do not recommend using exterior mortar to fill your joints or adhere Gaged flag stone can be installed in the same manner as natural stone or standard pavers depending on how even the sides are cut
  4. We do not recommend using exterior mortar to fill your joints or adhere your stones Recommended methods of finishing the outer edge of deck (Rim Joist, Fascia), Wood or Composite decking material can be used, Pavers or natural stone can be used to finish they can be adhered with recommended glue and use of either a temporary or permanent ledger board

Silca System® Wood to Stone Decks

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Deck framing is complete and Silca Grates™ are fastened down with deck screws in preparation for the deck overlay.
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2 layers of 3 oz. non-woven geotextile is installed on top of Silca Grate™ providing a sand bed for stone pavers.
Decking project complete! Silca System® provides a structural surface for natural stone and manufactured pavers. New and creative deck designs with Silca System®.
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Silca Grate™ can be easily cut and installed on angles for a more customized elevated deck.
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Silca Grate™ ensure a durable structural surface for a wide variety of pavers eliminating expensive maintenance. Especially at your weekend getaway.
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Eliminate the need for high maintenance products with Silca System®. Spend more time boating and fishing with your family! Outdoor living at it’s best.
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Silca Grates™ are designed for ¾” to 3” pavers.
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Another Silca deck project complete at your favorite lakeside destination!
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Stone deck overlay with Silca System®.
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Silca System® offers the ability to be creative with an almost unlimited variety of stone pavers!
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Silca deck and steps ready for pavers.
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Silca System® on massive deck and roof project.

Available at the following locations

Silca System Dealers

silca system stone tile deck testimonial

Silca grates allowed me to do "the impossible". I didn't have to worry about future problems and costs because of termites, rotting, or the effects over time of north Texas summer heat and winter freezes. "Grateful" is the appropriate word for how I feel about Silca grates! You made the impossible possible.
Your fan -- Shelly Moore 
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