Plastic lattice can be installed using various fastening methods, including staples, but proper techniques are crucial to ensure durability and accommodate the material’s expansion and contraction. According to installation guidelines, it’s recommended to pre-drill oversized holes and use screws or nails, allowing for movement, rather than stapling directly.
Using U-Channels for Stability
U-channels provide a stable and professional-looking installation method for plastic lattice. These channels frame the lattice sheet before installation, offering better support and a cleaner appearance. To use U-channels:
- Install the U-channel on the lattice prior to mounting for easier placement
- Place the framed lattice in the desired location
- Secure by screwing through the bottom of the U-channel into the support structure
- Alternatively, screw through both the channel and lattice into the support
- Use H-channels to connect multiple lattice sheets seamlessly
This method allows the lattice to float within the frame, accommodating expansion and contraction while providing a polished finish. It’s particularly useful when installing lattice within confined spaces or between existing structures.
Pre-Drilling Oversized Holes
When installing plastic lattice, pre-drilling oversized holes is crucial to accommodate the material’s expansion and contraction. This process involves drilling holes slightly larger than the fastener size to allow for movement. Here are key points to remember:
- Drill the largest hole that the screw head will allow without fitting through
- For a 3/16″ screw, drill a hole 1/8″ larger (approximately 5/16″)
- Center each screw in the oversized holes and avoid overtightening
- Space fasteners approximately 24 inches apart along the top of the lattice
- For plastic or HDPE lattice, expect an expansion/contraction rate of 1/16″ per foot
Pre-drilling oversized holes prevents warping, cracking, or damage to the lattice due to temperature fluctuations. This technique ensures a long-lasting and visually appealing installation while maintaining the lattice’s structural integrity.
Avoiding Over-Tightening Screws
When installing plastic lattice, it’s crucial to avoid over-tightening screws to prevent damage and allow for proper expansion and contraction. Here are key points to remember:
- Leave a small gap (about 1/2 millimeter) between the screw head and the lattice surface
- Use stainless steel pan head or washer head screws for outdoor applications
- Tighten screws just enough to hold the lattice in place, allowing slight movement
- For plastic or HDPE lattice, this technique is especially important due to its higher expansion rate
By avoiding over-tightening, you ensure the lattice can move slightly with temperature changes, preventing warping, cracking, or buckling over time. This approach maintains the lattice’s appearance and structural integrity for years to come.