Starting the First Ring

Using the floor as your level base, start the first ring for the roof. When adding the next sheet, always overlap the sheets in a clockwise direction. Add a piece of strip caulking down the entire right hand side of the sheet. It should be placed between the bolt holes and the edge of the bin sheet. When attaching sheets, place bolts in the top, middle, and bottom. Then go back and fill the seam. Use the strip caulking between every sheet.

If building a odd number ring (5 or 7 ring) bin, choose the sheet that will be centred over the door. Be sure to line up one of the triangles of the bird stop so it is as close to the centre of the sheet as possible.

If building an even numbered bin, choose the seam that will be centred over the door. Be sure to line up one of the triangles of the bid stop so it is as close to being directly over the seam as possible.

Continue to bolt on the bird stops around the bin. Add the pieces in a clockwise direction. Be sure the seams of the bird stop are offset from the seams of the wall sheets. Bolts should run from in to out as this makes it easier to tighten the roof sheets later.

If building an odd number ring bin, you need to add the short stiffeners now. The four holes on the outside edge of the stiffener should always be facing down as this is where you will bolt on the splicer plate. Do not fill the bottom 2 holes down the centre of the stiffener as you will bolt on the splicer plate here.

If you are building an even number bin, you will add the first set of stiffeners after the roof is finished.




Name Sheet & Winch Bar

**Please note if you are building an even number bin, the name sheet and winch bar will be put in place after the roof is finished. Drill out the top four bolt holes (using a ½ inch drill bit) in the stiffener on either side of where the door will be centred.

Bolt on the winch bar for the aeration (see picture).




Swing Air (if applicable)

Installing the cable tubes...
Using a long 3/16” bit line up where the cable tubes will pass through the wall sheet (see picture). Once, you have marked where the centre of the hole is, use a ¾” hole saw to drill from the outside in. Feed the cable tubes through the hole and caulk around the tube on the inside and outside of the bin sheet. Bolt the cable tubes to the winch bar. Feed cables through the tubes.




Attach Name Sheet

Attach the name sheet to the top of the stiffeners (one either side of where your door will be centred) by using the self tapping screws. Be sure to feed the cables so they come out under the name sheet.




Installing Roof Sheets

*The next few steps are critical in ensuring that your lid will line up with your door and all your bins look uniform.


Using your lifting device, hang your peak ring over the centre of the bin floor. Space your roof sheets around the bin. Starting with the roof sheet that will hang directly over the door, place the ‘peak’ of the roof sheet over the triangle on the birdstop that we centred over the door. Now spin the peak ring until you match up the hole on the bottom of the peak ring and the hole at the top of the peak ring best lines up with the ‘peak’ of the first roof sheet (see picture). This is the hole that you will bolt the front of the lid to, so you want it to line up with the center of the door as closely as possible.

Bolt on four roof sheets at equal intervals around the bin. Then starting at one of these sheets continue around the bin in a clockwise direction. When getting to a sheet already mounted, be sure to slide the forward peak under the next sheet so they are all mounted clockwise.

As you attach roof sheets, you may want to bolt on the expansion ring brackets at the same time (you can also add them after all the roof sheets are mounted). Be sure to use a rubber O-ring/rubber washer between the bracket and the roof sheet.

The roof sheet with the inspection hatch should be mounted to the left of the sheet over the door (you may skip one roof sheet and then place the inspection hatch). Next to the inspection hatch you should mount your roof ladder. Be sure the inspection hatch and roof ladder are side by side wherever you choose to mount them on the roof (**note in the picture the hatch and the roof ladder are switched for left handed access). Notice that there is no ladder rung for where the expansion ring will mount around the bin. Tighten up all the bolts on the roof at this point.




Expansion Ring

Step 1: The next step in the roof is mounting the expansion ring. Start by taking the small pieces of the expansion ring and tread a bolt and nut through them. This helps keep the connector pieces in place.

Step 2: Next, take the treaded pieces and thread on four nuts with one washer at each end. Be sure these are spaced evenly across from each other on the ring.

Step 3: Once the ring is in place you will see that the final ring piece will need to be cut to fit.

Step 4: Connect the final pieces with a smooth connector piece. Now, using a 1½ inch wrench, spread the nuts on the treaded connecters to spread the expansion ring. Be sure to tighten both sides of the roof equally. Once the ring is tight you should be able to see a slight bow in the roof panels.





Step 1: Lay out the template for the SAF-TI-FIL on your roof sheet. Be sure the SAF-TI-FIL is mounted as close to the eave as possible.

Step 2: Drill one hole with a 3/8” bit and the second hole with a 7/8” hole saw or drill bit.

Step 3: Thread the SAF-TI-FIL from under the roof sheet so the float is on the underside.

Step 4: Attach the collars and fasteners

Step 5: Check that the indicator can move freely.




Mounting & Sealing

The last step in building the roof is to mount the lid. First you need to put the peak ring seals around the outside of the peak ring. Hold them in place as you swing the lid over the bin and lower it into place. The lid goes outside the peak ring seals. Line up the bolt hole at the front of the lid with the hold on the peak ring that we started our roof sheets with. This should centre your lid so it is square with the door.

It is important to carefully caulk around the peak ring seal. This step is important to keep water from infiltrating your bin. Take your time and be sure to check for any holes or gaps that you may have missed.




Roof Assembly Tips

Always be sure the channel on the roof ladder is facing down so it doesn’t fill up with snow in the winter. It also makes it easier on the hands to grab when climbing up.

Remember to put a cord guide (u-bolt) on the back of the roof. This guide prevents your cords from blowing all over the bin when windy. Using a pair of pliers, bend under the edge of the roof sheet where you mount the cord guide. The rough edge of the roof sheet may cause your cord to wear and fray prematurely.

Bend the triangles on the bird stop out prior to placing the roof sheets on. This will create a guide for the sheets to slide on. After the roof is complete, go around on the inside and press the bird stops out so they best fill the space under the roof sheets.

You will want to add the first ladder section before lifting the roof any higher. Attach the ladder brackets to the first ladder section. Hold the ladder section up to the bin wall, directly under the roof ladder (should be even spaced between the stiffeners). Using a paint marker, mark the bin wall where you will need to mount the ladder. Drill two holes using a 11/32” drill bit. Attach the ladder brackets to the bin wall and tighten all bolts.




Even Number Bin 
(6 or 8 rings)

If you are building a bin with an even number of ring, this is when you will add your first stiffeners. Using your lifting device, raise the roof approximately 4 feet in the air. This will allow you to place the long stiffeners in place. Run the stiffener bolts from the inside to outside with the bolts on the outside of the bin. Once the stiffeners are tightened up you can lower the bin and stand it on the stiffeners (similar to the picture).

Now is the time to attach the winch bar and name sheet. The procedure is the same as previously described.

Be sure the name sheet and winch bar are placed on the first ring, close to the eave.


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