Identify All Drain Locations and Types
Before laying out any Garapa deck tiles, thoroughly survey your project area to identify all roof drains. These might include standard floor drains, scuppers, or trench drains. Note their exact locations, dimensions, and the type of cover or grate currently in place.
Consider the surrounding area: is there a slight depression or slope towards the drain? This is intentional for water collection. Your deck tile system needs to respect this existing drainage pattern. Documenting these details early will inform your tile layout and any necessary modifications.
Understanding Garapa Deck Tile Dimensions
Garapa deck tiles are available in standard sizes. Lumber Plus offers Garapa deck tiles in 12 x 12 inch and 24 x 24 inch formats.
The 12 x 12 inch tile provides 1 square foot of coverage per tile and is suitable for smaller areas or layouts with more intricate edges or transitions. The 24 x 24 inch tile offers 4 square feet of coverage per tile and is often chosen for larger, open surfaces where fewer tile seams are desired.
Knowing these dimensions is essential for planning cuts and ensuring that the tile system does not obstruct drain functionality. The choice of tile size can influence how easily you can create removable sections around drains.
Designing for Drain Access
The primary goal is to create a section of deck tiles around each drain that can be easily removed without disrupting the entire installation. This allows for routine maintenance, clearing debris, and inspecting the drain system.
One common approach is to center a drain within a single deck tile or a cluster of tiles that can be lifted as a unit. This often requires cutting tiles to create a snug but removable fit. For larger drains or those with unusual shapes, a custom frame might be needed to support the cut tile sections.
Avoid permanently fixing tiles directly over drains. Even if the drain is rarely accessed, unexpected issues can arise, making easy removal a valuable feature.
Maintaining Water Flow
Beyond access, ensuring proper water flow to the drain is critical. Garapa deck tiles, especially when installed on a pedestal system, naturally create a gap beneath the walking surface, allowing water to flow to the drains. However, the placement of pedestals or support joists around drains needs careful consideration.
Do not place pedestals or supports directly in the path of water flow to the drain. Ensure there is an unobstructed channel for water to reach the drain opening. If the roof surface has a slight slope towards the drain, confirm that your deck tile installation maintains or enhances this slope beneath the tiles, preventing water from pooling.
Worked Example: Planning for a 6-inch Square Drain
Consider a rooftop terrace where a 6-inch by 6-inch square roof drain is located 18 inches from one edge of the terrace and 24 inches from an adjacent edge. We will use 24 x 24 inch Garapa deck tiles.
1. **Layout Planning:** Start your tile layout from the edges, working inwards. If a 24 x 24 inch tile is placed with its edge 12 inches from the terrace edge, its center would be 24 inches from the edge. This means the drain falls within the area of a single 24 x 24 inch tile.
2. **Creating the Access Panel:** To create access, you would need to cut a 6-inch by 6-inch opening in the center of a 24 x 24 inch Garapa deck tile. This leaves a 9-inch wide border on all four sides of the opening. This central piece can be lifted for drain access. The remaining tile section would then be supported by pedestals around its perimeter, ensuring the cut edges are stable.
Additional pedestals might be needed along the edges of the cut tile to provide adequate support for the remaining frame.
4. **Quantity Calculation:** For this specific drain, you would need one 24 x 24 inch Garapa deck tile for the drain access panel. If the drain was located such that it crossed the seam of four tiles, you would need four tiles, each with a quarter-section cut out, to form the removable access panel. This would require more precise cuts and careful support underneath each quadrant.
Complementary Products for Your Project
While Garapa deck tiles form the surface, consider other elements for a complete and functional outdoor space.
Explore other deck tile options like Ipe deck tiles or Cumaru deck tiles for different aesthetics and characteristics. Pedestal systems are often used to elevate deck tiles, providing a level surface over sloped roofs and allowing for excellent drainage and utility routing underneath.
Finally, don't forget the importance of edge finishing. Various trim pieces and fascias can be used to create a clean, finished look for the perimeter of your deck tile installation.
Before you order
- Have you identified all drain locations, types, and dimensions?
- Do you know the required clearance or access space for each drain?
- Which Garapa deck tile size (12x12 or 24x24) best accommodates your drain layout?
- How will you cut tiles to create removable access panels around drains?
- What support system (e.g., pedestals) will you use, and how will it avoid obstructing water flow to drains?
- Have you considered how to finish the edges of your deck tile installation around the drains?
- Will your plan allow for easy future maintenance and inspection of the drains?
Confirm installation details, approved uses and warranty terms in the current instructions for the exact product and profile. Your installer should verify the substrate, structure and applicable project requirements.
Questions to help you decide
Can I use Garapa deck tiles directly on a sloped roof surface?
Garapa deck tiles are typically installed on a level sub-structure, often using a pedestal system. This system allows the tiles to be laid flat while the pedestals accommodate the underlying slope of the roof, ensuring proper drainage beneath the tiles without creating an uneven walking surface. Direct placement on a sloped surface is generally not recommended as it could lead to an unstable or uneven deck surface.
How do I ensure the cut edges of Garapa deck tiles around a drain are stable?
When cutting Garapa deck tiles to fit around a drain, ensure that the remaining tile sections are adequately supported. This usually involves placing pedestals or other support structures close to the cut edges. The goal is to prevent any movement or sagging of the cut pieces, maintaining a stable and safe surface. Consulting the manufacturer's installation guidelines for your specific pedestal system is recommended.
What if my roof drain is not a standard square or round shape?
For irregularly shaped drains, a custom approach may be necessary. You might need to create a template of the drain's shape to guide your cuts on the Garapa deck tiles. This could involve using multiple tiles to form the access panel, each carefully cut to fit. In some cases, a custom-fabricated frame or grate might be integrated with the deck tiles to provide both support and access. Always prioritize maintaining an unobstructed path for water to reach the drain.
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