Layout and Installation Guide


PLEASE NOTE: THESE ARE GENERAL LAYOUT GUIDES BASED ON 12" CTC
SNOW LOAD MUST BE TAKEN INTO ACCOUNT TO ENSURE THAT YOUR SNOW RETENTION SYSTEM PERFORMS PROPERLY. PLEASE CALL OR EMAIL FOR A CUSTOMIZED LAYOUT.
Universal Guard & Minor Rib Mechanically Fastened
Slope Row Pattern Vertical Spacing between rows
0/12-2/12 2 Line Staggered 50'
03/12-5/12 2 Line Staggered 20'
06/12+ Straight Line 12'
Panel Width Horizontal Spacing  
8" - 12" 1 Per Panel
14" + 2 Per Panel
 
The layout pattern for adhesive mounting is the same outside the vertical spacing which must be determined using your actual snow load.  
DIRECTIONS FOR MECHANICAL INSTALLATION
  1. Determine the location of the Polar Blox per Manufacturer’s recommendation (see above).
  2. Clean the roof surface where the Blox will be placed with xylene or isopropyl alcohol. Allow to dry completely.
  3. Apply a even coating of transparent silicone adhesive to the Blox base.  Our SB-190 Sealant Adhesive is an excellent choice for this application as it is neutral cure and the adhesive properties will only enhance your mechanical fasteners.  If you choose to provide your own, please use a non-acetic silicone on Galvalume® or galvanized roofs.
  4. Each Polar Blox should be positioned with the holes against the roof and the face of the Blox toward the roof ridge.
  5. Use two self-tapping screws with neoprene washers under the heads. Screw through the Polar Blox and roofing material, into the purlin or structural support. 
  6. Tighten the screws to ensure an adequate squeeze-out around the entire edge of the Blox. Do not over-tighten. Run a bead of silicone along any voids along the perimeter.
  7. To ensure a weather-tight seal, use a gloved finger to smooth the sealant along the edge of the Blox.

DIRECTIONS FOR ADHESIVE MOUNTING

  1. Determine the location of the Polar Blox per Manufacturer’s recommendation.
  2. Clean the roof surface where the Blox will be placed with xylene or isopropyl alcohol. Allow to dry completely.
  3. Generously apply an even coating of adhesive to the Blox base, covering the entire area to be mounted.
  4. Each Polar Blox should be positioned with the holes against the roof and the face of the Blox toward the roof ridge.
  5. Press each Polar Blox firmly against the roof surface. Make sure there is no air trapped under the Blox and that there is an adequate squeeze-out along the entire perimeter.
  6. To ensure a weather-tight seal, use a gloved finger to smooth the sealant along the edge of the Blox.

 

Definitions:

Vertical Distance -  Distance from your Eve to your Ridge, perpendicular to the ground surface.   

Horizontal Distance - Distance side to side,  parallel to the ground surface.

Slope - Slope is calculated by taking the rise of the roof / run of the roof.  If your roof slopes up 4" for every foot of roof then your Slope would be 4/12.  

Staggered Pattern - Each row should consist of alternating blocks 12" to 15" vertically apart at the appropriate horizontal spacing.