GSI PNEG-1092 User Manual
PNEG-1092
30° Bin Roof Construction
Installation Manual
PNEG-1092
Date: 08-14-12
2 PNEG-1092 30° Bin Roof Construction
Table of Contents
Contents
Chapter 1 Safety .....................................................................................................................................................5
Safety Guidelines .................................................................................................................................. 5
General Safety Statement ..................................................................................................................... 6
Safety Instructions ..................... ... .... .......................................... ... ........................................................ 7
Safety Sign-Off Sheet ........................................................................................................................... 9
Proper Storage of Grain Bin/Silo Materials Prior to Construction ....................................................... 10
Chapter 2 Decals ..................................................................................................................................................11
Overfill Warning ...................... ... ... .......................................... .... ......................................................... 14
Proper Decal Sheet Placement ........................................................................................................... 15
Chapter 3 Bolt and Nut Usage ............................................................................................................................16
Bolt Usage ........................................................................................................................................... 16
Nut Usage .......... .... .......................................... ... .......................................... ... ................................... 17
Chapter 4 Instructions .........................................................................................................................................18
Instructions for Stirring Devices ....................... ... ... ... .... ... ... ... .......................................... ... ................ 18
Auto-Vent Assembly and Installation Instructions ............................................................................... 19
Wire Grill Guard Roof Vent Assembly and Installation Instructions .................................................... 21
Chapter 5 Manway Cover Assembly ..................................................................................................................23
72'-135' Obround Manway Cover ........................................................................................................ 23
Round Manway Cover ......................................................................................................................... 24
Chapter 6 Center Collar Details ..........................................................................................................................25
Chapter 7 Farm Roof Assembly .........................................................................................................................26
Roof Assembly for 12' through 24' Bins .............................................................................................. 28
Roof Assembly for 27' through 30' Bins .............................................................................................. 30
Roof Assembly for 33' through 48' Roofs with Standard Peak Cap .................................................... 33
Chapter 8 Support Ring Instructions .................................................................................................................36
Ring Instructions ................................................................................................................................. 36
Roof Support Ring Instructions 30° Roof ............................................................................................ 37
48' Farm Roof Support Instructions ..................................................................................................... 40
39', 42', 45' and 48' Commercial Roof Instructions ............................................................................. 42
Chapter 9 Roof Stiffener Location and Detail ............................... ... ... .... ... ... ... ... .... ... ... ... .................................43
Three (3) Stiffeners per Sidewall Sheet Commercial Stiffener Starting Location -
39' Diameter to 105' Diameter 2.66" Corrugation Inside Stiffener Only .............................................. 43
Three (3) Stiffeners per Sidewall Sheet Commercial Stiffener Starting Location -
39' Diameter to 105' Diameter 2.66" Reverse Corrugation Outside Stiffener Only ............................. 44
39' through 48' Standard Roof Stiffener Detail 2.66" Corrugation Inside Stiffener Only ..................... 45
39' through 48' Standard Roof Stiffener Detail 2.66" Corrugation Outside Stiffener Only ................... 46
39' Diameter Standard Roof Standard Roof Stiffener Detail 4" Corrugation - Outside Stiffened ..... ... 47
42' through 105' Diameter Standard Commercial Roof Standard Roof Stiffener Detail
4" Corrugation - Outside Stiffened 10000 Lbs. Peak Load Roof ......................................................... 48
72' through 105' Diameter Standard Roof Standard Roof Stiffener Detail 4" Corrugation -
Outside Stiffened 20000 Lbs. Peak Load Roof .......................................... ... ... ................................... 49
PNEG-1092 30° Bin Roof Construction 3
Table of Contents
Chapter 10 Roof Assembly Instructions ......................................... ................................ ...................................50
39', 42', 45' and 48' Commercial Roof Assembly Instructions ........................................................... 50
39', 42', 45' and 48' Roof Truss Assembly ......................................................................................... 51
33'-48' Flat Top Instructions ............................................................................................................... 53
54'-60' Commercial Roof Instructions .................... ............................................................. ............... 54
54'-60' Diameter Roof Stiffener Detail 2.66'' Corrugation Inside Stiffener Only ................................. 56
54'-60' Diameter Roof Stiffener Detail 2.66'' Corrugation Outside Stiffener Only ... ... ... ... ... .... ... ... ... .. 57
54'-60' Roof Beam Stiffener Detail for Unstiffened 2.66" and 4.00" Bins ........................................... 58
54' and 60' Commercial Roof Assembly Instructions ......................................................................... 59
54'-60' Roof Truss Assembly ............................................................................................................. 61
54'-60' Lower Roof Truss Assembly .................................................................................................. 62
54'-60' Upper Roof Truss Assembly .................................................................................................. 63
54'-60' Flat Top Instructions ............................................................................................................... 64
Temperature Cable Support Package ............................................................................................... 65
Chapter 11 Roof Truss Details ............................................................................................................................66
27'-30' Roof Truss Details .................................................................................................................. 66
33'-36' Roof Truss Details .................................................................................................................. 66
27' and 30' Rafter to Center Collar Connection ................................................................................. 67
For Eave Height Greater than 40'-5'' - 33' and 36' Temperature Cable Support
Packages to Center Roof Rafter Collar Attachment Instruction ................................. ... ... ... .... ... ... ... .. 68
CRP-5286 (39'-48' (11.89 m-14.63 m) Support System)
CRP-5421 (54'-60' (16.46 m-18.29 m) Support System) ................................................................... 69
39'-60' Roof Truss Details .................................................................................................................. 70
42' and 48' Rafter/Splice/Support Intersection Detail ........................................................................ 72
Temperature Cable Support Packages for Eave Heights of 40'-5'' or Less (12.32 m) Installation .... 73
27'-42' Roof Truss Details .................................................................................................................. 74
Chapter 12 48' Farm Roof Support System .......................................................................................................76
CRP-6263 (48' (14.63 m) Support System) Eave Height Less than 40'-5" ....................................... 76
Field Fabricated Temperature Cable Support Attachment Recommendation ................................. .. 78
Field Fabricated Temperature Cable Support Attachment Recommendation ................................. .. 79
Field Fabricated Temperature Cable Support Attachment ........................... ... ... .... ... ... ... .................. 80
Field Fabricated Temperature Cable Support Recommendations for
Cables above the “Z” Collar ............................................................................................................... 81
Field Fabricated Temperature Cable Support Recommendations for
Cables below the “Z” Collar ............................................................................................................... 82
Field Fabricated Temperature Cable Support Recommendations for
Cables below the “Z” Collar in an “X” Braced Bay ............................................................................. 82
Field Fabricated Temperature Cable Support Recommendations for
Cables above the “Z” Collar Alternate Method .................................................................................. 83
Optional Grain Bin Eave Seal Installation .... .... .......................................... ... ... ... .... ... ... ... ... .... ... ... ..... 84
Chapter 13 30° Roof Panel Information .............................................................................................................85
Chapter 14 Warranty ............................................................................................................................................87
4 PNEG-1092 30° Bin Roof Construction
1. Safety
DANGER
WARNING
CAUTION
NOTICE
This is the safety alert symbol. It is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible
injury or death.
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol, indicates a
hazardous situation which, if not avoided, could result in
minor or moderate injury.
NOTICE is used to address practices not related to
personal injury.
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Safety Guidelines
This manual contains information that is important for you, the owner/operator, to know and understand.
This information relates to protecting personal safety and preventing equipment problems. It is the
responsibility of the owner/operator to inform anyone operating or working in the area of this equipment
of these safety guidelines. To help you recognize this information, we use the symbols that are defined
below. Please read the manual and pay attention to these sections. Failure to read this manual and its
safety instructions is a misuse of the equipment and may lead to serious injury or death.
PNEG-1092 30° Bin Roof Construction 5
1. Safety
This product has sharp edges, which may cause serious injury. To avoid injury, handle
sharp edges with caution and always use proper protective clothing and equipment.
General Safety Statement
Our foremost concern is your safety and the safety of others associated with grain handling equipment.
This manual is to help you understand safe operating procedures and some problems that may be
encountered by the operator and other personnel.
As owner and/or operator, you are responsible to know what requirements, hazards and precautions exist
and inform all personnel associated with the equipment or in the area. Safety precautions may be required
from the personnel. Avoid any alterations to the equipment, which may produce a very dangerous
situation, where SERIOUS INJURY or DEATH may occur.
You should consider the location of the bin site relative to power line locations or electrical transmission
equipment. Contact your local power company to review your installation plan or for information
concerning required equipment clearance. Clearance of portable equipment that may be taken to the bin
site should also be reviewed and considered. Any electrical control equipment in contact with the bin
should be properly grounded and installed in accordance with National Electric Code provisions and other
local or national codes.
This product is intended for the use of grain storage only. Any other use is a misuse of the product.
Sidewall bundles or sheets must be stored in a safe manner. The safest method of storing sidewall
bundles is laying horizontally with the arch of the sheet upward, like a dome. Sidewall sheets stored on
edge must be secured so that they cannot fall over and cause injury. Use care when handling and moving
sidewall bundles.
Personnel operating or working around equipment should read this manual. This manual must be
delivered with equipment to its owner. Failure to read this manual and its safety instructions is a misuse
of the equipment.
6 PNEG-1092 30° Bin Roof Construction
1. Safety
Follow Safety Instructions
Carefully read all safety messages in this manual and
safety signs on your machine. Keep signs in good
condition. Replace missing or damaged safety signs. Be
sure new equipment components and repair parts include
the current safety signs. Replacement safety signs are
available from the manufacturer.
Learn how to operate the machine and how to use controls
properly. Do not let anyone operate without instruction.
Keep your machinery in proper working condition.
Unauthorized modifications to the machine may impair
the function and/or safety and affect machine life.
If you do not understand any part of this manual or need
assistance, contact your dealer.
Read and Understand Manual
Practice Safe Maintenance
Understand service procedures before doing work. Keep area
clean and dry.
Never lubricate, service, or adjust machine while it is in operation.
Keep hands, feet, and clothing away from rotating parts.
Keep all parts in good condition and properly installed. Fix
damage immediately . Replace worn or broken p arts. Remove any
built-up grease, oil, and debris.
Maintain Equipment
and Work Area
Safety Instructions
Our foremost concern is your safety and the safety of others associated with this equipment. We want to
keep you as a customer. This manual is to help you understand safe operating procedures and some
problems that may be encountered by the operator and other personnel.
As owner and/or operator, it is your responsibility to know what requirements, hazards, and precautions
exist, and to inform all personnel associated with the equipment or in the area. Safety precautions may be
required from the personnel. Avoid any alterations to the equipment. Such alterations may produce a very
dangerous situation where SERIOUS INJURY or DEATH may occur.
This equipment shall be installed in accordance with the current installation codes and applicable
regulations, which should be carefully followed in all cases. Authorities having jurisdiction should be
consulted before installations are made.
PNEG-1092 30° Bin Roof Construction 7
1. Safety
Prepare for Emergencies
Be prepared if fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,
hospital, and fire department near your telephone.
Keep Emergency Equipment
Quickly Accessible
Wear Protective Clothing
Wear close-fitting clothing and safety equipment appropriate
to the job.
Remove all jewelry.
Tie long hair up and back.
Wear safety glasses at all times to protect eyes from debris.
Wear gloves to protect your hands from sharp edges on plastic
or steel parts.
Wear steel-toed boots to help protect your feet from falling
debris. Tuck in any loose or dangling shoestrings.
A respirator may be needed to prevent breathing potentially
toxic fumes and dust.
Wear a hard hat to help protect your head.
Wear appropriate fall protection equipment when working at
elevations greater than six feet (6').
Eye Protection
Gloves
Steel-Toed Boots
Respirator
Hard Hat
Fall Protection
8 PNEG-1092 30° Bin Roof Construction
1. Safety
Safety Sign-Off Sheet
As a requirement of O.S.H.A., it is necessary for the employer to train the employee in the safe operating
and safety procedures for this auger. This sign-off sheet is provided for your convenience and personal
record keeping. All unqualified persons are to stay out of the work area at all times. It is strongly
recommended that another qualified person who knows the shut down procedure be in the area in the
event of an emergency.
Date Employee Name Supervisor Name
PNEG-1092 30° Bin Roof Construction 9
1. Safety
Proper Storage of Grain Bin/Silo Materials Prior to Construction
Wet storage stain (rust) will develop when closely packed bundles of galvanized material, such as sidewall
and roof sheets, have moisture present. Inspect roof and sidewall bundles on arrival for any moisture. If
moisture is present, it must not be allowed to remain between the she ets. Separate the sheets or panels
immediately and wipe them down. Spray with a light oil or diesel fuel.
If possible, sidewall bundles, roof sheets and other closely packed galvanized materials should be stored
in a dry, climate controlled building. If outdoor storage is unavoidable, the materials should be stored so
that they are raised above the ground and vegetation. Any stacking an d spacing mat erials sho uld not be
corrosive or wet. Be sure to protect materials from the weather, but permit air movement around the
bundles if possible.
Storing roof bundles and sidewall sheets at a slight incline can also help minimize the presence of
moisture. Storing the bundles with the center of the dome up (like an arch) is one option for minimizing
moisture during storage. Sidewall bundles can also be stored on edge but must be secured so that they
do not fall over and cause injury.
If “white rust” or “wet storage stain” occurs, contact the manufacturer immediately about ways to minimize
the adverse effect upon the galvanized coating.
10 PNEG-1092 30° Bin Roof Construction
2. Decals
The manufacturer does not warrant any roof damage caused by excessive vacuum or internal
pressure from fans or other air moving systems. Adequate ventilation and/or “makeup air” devices
should be provided for all powered air handling systems. The manufacturer does n ot recommend
the use of downward flow systems (suction). Severe roof damage can result fro m any blockage of
air passages. Running fans during high humidity/cold weather conditions can cause air exhaust
or intake ports to freeze.
CAUTION!
Excessive vacuum (or pressure) may
damage roof. Use positive aeration
system. Make sure all roof vents are
open and unobstructed. Start roof
fans when supply fans are started.
Do not operate when conditions exist
that may cause roof vent icing.
DC-969
PNEG-1092 30° Bin Roof Construction 11
2. Decals
Rotating flighting will
kill or dismember.
Flowing material will
trap and suffocate.
Crusted material will
collapse and suffocate.
Keep clear of all augers.
DO NOT ENTER this bin!
Failure to heed these
warnings will result in
serious injury or death.
If you must enter the bin:
1. Shut off and lock out all power.
2. Use a safety harness and safety line.
3. Station another person outside the bin.
4. Avoid the center of the bin.
5. Wear proper breathing equipment or respirator.
DC-GBC-1A
ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and roof manway cover. If a decal has been damaged or is missing in any of these
locations, contact the manufacturer for a free replacement decal.
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: 1-217-226-4421
12 PNEG-1092 30° Bin Roof Construction
2. Decals
ATTENTION: The decal shown below should be present on the outside of the door cover of the 2 ring,
24" porthole door cover and roof manway cover. If a decal has been damaged or is missing in any of these
locations, contact the manufacturer for a free replacement decal.
GSI Decals
1004 E. Illinois St.
Assumption, IL. 62510
Phone: 1-217-226-4421
WARNIN
DON’T
DO
UNLOADING INSTRUCTIONS:
1. Use CENTER FLOOR OUTLET ONLY until NO grain
remains above this outlet.
2. Side floor outlets to be used ONLY when above
condition is satisfied.
3. Lock all side floor outlets to avoid accidental
premature use.
4. See manufacturers instructions for proper use of
factory supplied sidedraw (wall) discharge systems.
Failure to heed these warnings
could result in serious injury, death,
structural damage or collapse of tank.
DC-GBC-2A
PNEG-1092 30° Bin Roof Construction 13
2. Decals
WARNING
DO NOT OVERFILL BIN. Stored grain, although heaped in the center, should
be no higher than the roof eaves at the outer edge. (See Figure 2A.) Filling the bin
above this point creates excessive internal pressure and may cause swelling and
eventual roof failure. The overfilling of a bin may also cause the blockage of roof
vents and eaves, which will lead to a build-up of air pressure causing roof damage.
(Based on grain with an angle of repose of 27°.)
Overfill Warning
Figure 2A Maximum Bin Capacity
14 PNEG-1092 30° Bin Roof Construction
2. Decals
Proper Decal Sheet Placement
Prior to beginning roof construction, it is necessary to build at least 1 ring of the bin.
Refer to the Bin/Silo construction manual you received with the bin. This manual will be packaged in the
sidewall hardware box.
Note for several of the lines (WS, FC and NS), the sidewall sheet has a “top” and “bottom”. It is imp ortant
to refer to these details.
Figure 2B
PNEG-1092 30° Bin Roof Construction 15
3. Bolt and Nut Usage
This bolt is used in attaching roof panels to the top sidewall sheet and attaching roof panels and flashing to the
center collar.
S
-
2
7
5
This bolt is primarily used to connect roof panels together where they overlap.
S
-
2
7
7
0.375" x 1.000" Hex flanged head without a plastic sealing washer. This bolt is used on the roof rafter splices for
commercial roof systems.
S
-
7
9
2
7
Bolt Usage
16 PNEG-1092 30° Bin Roof Construction
Nut Usage
This nut is used in attaching roof panels to the roof channels and to the sidewall sheets, as well as attaching roof panels
and flashing to the center collar.
S
-
3
6
11
0.3125 Serrated flange nut
This nut is primarily used in sidewall sheet connections.
0.3125 Hex nut
S
-
3
9
6
3. Bolt and Nut Usage
PNEG-1092 30° Bin Roof Construction 17
4. Instructions
Stirring devices may create additional loads on grain bin sidewalls, roofs and
floors. If high-moisture grain is loaded too deep and too fast, unstiffened bin
walls can become overloaded. Observe the following installation and operation
procedures if the bin is to be equipped with the stirring device.
WARNING
Instructions for Stirring Devices
Bins are offered in more than one structural series for specific uses. To maintain the warranty, the
appropriate “series” grain bin must be used. Consult the sales catalog or contact the Engineering
Department for current recommendations. Note that the use of any stirring device with three (3) or more
vertical screws may require a heavier than “standard” series bin. Any re-circulating device or system
should be used in the “re-circulating” series bins. NOTE: For GSI bins larger than 33' diameter an
alternate method of mounting is to attach suspension chain to intermediate center collar.
1. Read owner’s manual for the stirring device and follow all instructions se t fort h by th e manufa cture r.
IMPORTANT: Install the switch for the stirring device near the roof manway opening so that the
unit can be observed while stirring.
2. Make sure there are no obstructions, such as protruding ladders.
3. After loading approximately 3' of grain, run the unit one complete revolution to determine if it is
working properly.
4. If the unit is functioning properly, operate the stirring device continuously while filling and drying to
avoid compacted grain around the vertical screws.
5. If it becomes necessary to stop a stirring device using laterally moving screws, try to stop it with the
vertical screws nearest to the center of the bin, away from the sidewall. Should a device stop or stall
for any reason and remain inoperable for any length of time, the auger carriage should be supported
to the grain surface before restarting. The vertical auger should be turned by hand, with a pipe
wrench, before power is applied.
6. For best results, fill the bin to one-half of the final intended depth. Dry grain to 16% and continue
filling. Use filling rates specified by stirring device manufacturer. If necessary to fill to the top wit hout
stopping, reduce the filling rate and drying air temperature so that th e stirrin g rate ca n keep up with
the drying rate.
7. Do not overfill bin. Filling should be stopped at bottom of top ring or 30" below the track.
8. The preceding steps are only general instructions which apply to the majority of stirring devices.
Since there are different manufacturers of these devices, it is importan t to read the operator’s manual
thoroughly for specific instructions applicable to the machine.
18 PNEG-1092 30° Bin Roof Construction
4. Instructions
Auto-Vent Assembly and Installation Instructions
The following instructions are for assembling and installing the Auto-Vent. First, check the packing list to
ensure all components have been shipped. The unit is easiest assembled in the upside down position
as shown in the instructions.
Assembly
1. Take all parts out of the shipping box and check if all parts are present.
2. Turn one roof vent housing (MIS-6778) upside down. (See Figure 4A.)
3. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through hole in the side of roof vent. Place
jamb nut onto the bolt and tighten. (See Figure 4A.)
4. Slide flap assembly (MIS-6777) on to bolt. The bolt should slide through hole in the flap assembly
bracket. Install with curvature cupped upward and the brackets in the position as shown in
5. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the other side of the roof vent, through
jamb nut and other flap assembly bracket. Tighten nut against vent housing side.
6. Apply a bead of tube caulking around three (3) housing sides of the roof vent where it meets the
hold-down angle.
Figure 4A
.
7. Place hold-down angle (MIS-4404) on the assembled roof vent. The wide end o f the hold-down angle
must face vent discharge. Once aligned, screw nine (9) #10 self-drilling (S-280) screws through the
roof housing and into the hold-down angle. (See Figure 4B.)
Figure 4A
PNEG-1092 30° Bin Roof Construction 19
Figure 4B
4. Instructions
Installation
8. If the roof sheet does not have a pre-punched hole for t he roof vent, a hole must be cut. The cut hole
should match the roof vent. The hole’s inside edge should be approximately 15" from the eave.
(See Figure 4E.)
9. Place the three (3) foam strips on roof sheet, as shown in Figure 4D. Position roof vent over foam
strips and bolt down using 5/16" x 3/4" bin bolts and nuts. NOTE: See Figure 4E below for lower
two (2) bolts of vent.
Figure 4C
Figure 4D
Figure 4E
20 PNEG-1092 30° Bin Roof Construction
4. Instructions
Wire Grill Guard Roof Vent Assembly and Installation Instructions
The following instructions are for assembling and installing the wire grill guard roof vent. Before beginning
assembly, check the packing list to ensure all components have been received. The unit is easiest
assembled in the upside down position as shown in Figure 4F. Locate the roof vent as shown in
Figure 4J on Page 22.
Assembly
1. Turn one roof vent housing (MIS-6778) upside down. (See Figure 4F.)
2. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the hole in the side of the roof vent. Place
jamb nut onto the bolt and tighten. (See Figure 4F.)
3. Slide one eyelet of grill guard onto the 5/16" bin bolt.
4. Insert 5/16" x 1-1/4" bin bolt with neoprene washer through the other side of the roof vent, through
jamb nut and other eyelet of grill guard. Tighten nut against vent housing side.
5. Apply a bead of tube caulking around the three (3) housing sides of the roof vent where it meets the
hold-down angle.
6. Place hold-down angle (MIS-4404) on the assembled roof vent. The wide end o f the hold-down angle
must face the vent discharge. Once aligned, screw nine (9) #10 self-drilling (S-280) screws through
the roof housing and into the hold-down angle. (See Figure 4G.)
Figure 4F Figure 4G
PNEG-1092 30° Bin Roof Construction 21
4. Instructions
Installation
7. If the roof sheet does not have a pre-punched hole for the roof vent, a hole must be cut. Cut the hole
to match the roof vent. The inside edge of the hole should be approximately 15" from the eave.
(See Figure 4J.)
8. Place the three (3) foam strips on roof sheet, as shown in Figure 4I. Position roof vent over foam
strips and bolt down using 5/16" x 3/4" bin bolts and nuts. NOTE: See Figure 4J for lower two (2)
bolts of vent.
Figure 4H Figure 4I
Figure 4J
22 PNEG-1092 30° Bin Roof Construction
72'-135' Obround Manway Cover
Lower hinges (MW-291)
Hinge plates (MW-272)
Manway cover with
decals (MW-008D)
Latch bar (MW-271)
Latch bracket
(MW-1439)
5. Manway Cover Assembly
Bolt hinge plates and latch bar to manway first. Then bolt lower hinges and latch bracket to roof panel.
Place center cover over port and insert pivot bolts into hinges. (See Figure 5A.)
PNEG-1092 30° Bin Roof Construction 23
Figure 5A Manway Cover Assembly
5. Manway Cover Assembly
Round Manway Cover
Round manway cover detail for bins 60' and smaller.
Figure 5B
Apply caulking to underneath side of moisture diverter to seal between the corrugated roof sheet and
diverter. Attach the moisture diverter and hinge base to manway roof sheet with 5/16" x 3/4" bolts and nuts.
Place hinge leaf on manway cover and bolt both hinge parts together with 3/8" x 1" bolts and lock nuts.
Attach the handle with two (2) #10-24 x 5/8" long bolts and #10-24 lock nuts. Slip a 5/16" nut in the latch
bar, thread on the shaft of handle and adjust latch bar so it will catch the bottom side of the manway sheet.
Snap the manway seal strip to the manway seal. (See Figure 5B.)
24 PNEG-1092 30° Bin Roof Construction
6. Center Collar Details
The standard roof with a dome cap lid will have a center collar assembled from three (3) pieces. The
dome cap will mount onto it as well as the flashing. The dome cap is standard on all 12'-48' bins and
54'-60' FCDL, WSL and NSL series bins. A flat top is standard on all 39'-60' NCL and WCL commercial
series bins.
For the 33'-48' dome cap bins, this will be the upper or “top” center collar. The lower or “Z” center collar
details are given on the later pages.
54'-60' dome cap bins and 33' and larger flattop bins do not have the top center collar.
Figure 6A
PNEG-1092 30° Bin Roof Construction 25
7. Farm Roof Assembly
Farm Roof Assembly
After completing the first sidewall ring, you are ready to begin construction. Begin with the center collar
sections. For convenience in opening and closing the center cover, the roof ladder and manhole sheet
should be placed directly opposite the two (2) slide rod holes in the center collar. Next build a roof center
support to hold the peak in place at the proper height. A simple structure composed of a sturdy cross
arm attached to a pole and supported by a platform or scaffolding will do. Stand the center support directly
in the center of the bin. The following dimensions are approximate distances used in bin roof construction.
Adjusting the center support height will ease roof erection. Place eave clips inside the bin wall to maintain
an opening around the top of the sidewall. This allows condensation, which normally collects on the
underneath side of the roof panels, to flow freely to the outside of the bin, thus avoiding possible
grain spoilage.
Bin
Diameter
12' 6'-9" 5'-9'' 8'-5"
15' 7'-7'' 6'-7'' 9'-3"
18' 8'-5'' 7'-5'' 10'-1"
21' 9'-4'' 8'-4'' 11'-0"
24' 10'-2'' 9'-2'' 11'-10"
27' 11'-0'' 10'-0" 12'-8"
30' 11'-11'' 10'-11" 13'-7"
33' 12'-2" 11'-2'' 13'-10"
36' 13'-1'' 12'-1" 14'-9''
39' 14'-4" 13'-4" 16'-0''
42' 14'-10'' 13'-10" 16'-6''
45' 15'-6" 14'-6" 17'-2''
48' 16'-4" 15'-4" 18'-0"
54' 16'-9" 15'-9" 18'-5"
60' 18'-6" 17'-6" 20'-2"
Use with 1 Ring of
4.00'' Corrugated Sidewall
“A” “A” “A”
Use with 1 Ring of
2.66'' Corrugated Sidewall
Use with 2 Ring of
2.66'' Corrugated Sidewall
Figure 7A
26 PNEG-1092 30° Bin Roof Construction
7. Farm Roof Assembly
For best results in erecting the roof, install two (2) roof panels in four (4) places as shown in Figure 7C.
When these eight (8) panels are in place, the peak assembly should be centered. Next add two (2) or
three (3) panels at a time to each section making certain to la p them the same way, until all panels are in
place. Be sure the panels are bolted loosely. DO NOT TIGHTEN BOLTS UNTIL THE ROOF IS
COMPLETELY ASSEMBLED. When installing the roof panels, take into consideration placing the
manway for ease of access to and from the sidewall and roof ladders. On Stiffened tanks, particularly
on NCHT and FCHT series hopper tanks, location of the manway panel and roof ladder in relation
to the stiffeners is crucial for proper installation of the ladder system. Refer to PNEG-1451
for detailed instructions on NCHT and FCHT manuals and PNEG-1420 for flat bottomed
stiffened tanks (FCDL, NCL, WCL Series). These manuals are packaged with the ladder and
safety cage packages.
Fasten roof sheets to eave clips and sidewall sheets as you assemble.
Figure 7B Roof Overlay
Figure 7C
PNEG-1092 30° Bin Roof Construction 27
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