You cannot drill or nail nailer board to rooftops, balconies and mezzanines surfaces. This will damage the surface and may cause the surface to leak below.
When securing the nailer board to these types of surfaces, I recommend placing Superseam Adhesives between the surface you are adhering. Superseam adhesives are the strongest in the industry and will bond to most surfaces including concrete and asphalt. Make sure the surface is clean of all dirt and debris. *Remember the system will not be completely secure until infill placement is completed, and make sure to respect wind lift in all areas.
6. When securing nailer boards flat on concrete or asphalt I recommend drilling and securing with a tapered head concrete anchor. Using Superseam Adhesives along with anchors will ensure a strong bond which will assist in thermal expansion.
7. When the nailer boards are secure and in place, it is the start of the Airdrain placement.
Please read my Ask JW Airdrain Column for installation information: https://syntheticgrasswarehouse.com/askjw/what-drains-better-than-air-airdrain-does/
8. When the nailer board and Airdrain installation are complete, place the synthetic turf over the Airdrain.
9. Cut off any excess over the nailer board and leave approximately 3” inches.
10. Overlap and tuck the turf to the outside 1” inch of the nailer board and staple every 2” inches on center. Make sure you keep the turf stretched tightly.
11. Placing infill at areas that are susceptible to “Wind-Lift” is very crucial. When synthetic turf is placed on rooftops and balconies high winds may rip them right off. I have witnessed turf resting upon vehicles from high rise installations that were improperly filled with turf infill – the weight is crucial. Don’t choose a high ounce turf either. The higher the ounce, the less infill will be placed. Less infill means the wind will remove it from its position within seconds.