THE PROOF IS IN THE COLUMN

Black Rock Fireproof Columns save owners cost and installation time through:

  • • Factory fireproofing (in-shop labor eliminates need for field labor to apply other forms of fireproofing)
  • • Exacting quality control performed by our in-shop factory professionals
  • • Decreased long-term maintenance costs and the added durability of exterior steel shells
  • • Predictable scheduling as Black Rock Fireproof Columns are delivered to site completely fabricated, fireproofed, and ready for erection
  • • No additional trades needed for on-site fireproofing
  • • Added security and confidence of working with an AISC-certified structural fireproof column fabricator
 

Black Rock assures on-time deliveries by maintaining our own trucking fleet of 15 tractors and 40 trailers. We also tap into our network of over-the-road trucking firms whenever needed to meet owner demands.

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Prefabricated Building Column Cost Comparisons
Costs based on a 10 x 10 Column @ 12' Tall (Open shop rates)

Sheetrock Encased 2 Layers, 2 HR, UL X509 Intumescent 2 HR Field Applied Coating Spray on Fireproofing as per UL X716, 2 HR, 9/16" Thickness BRFC "BRIDGEPORT" 2 HR TYPE SS X 106
Labor
$550

4 Hours - frame and sheetrock
4 Hours - bead and taps
$500
$300

2 - two hour days per column
$300
Material
$225
$600
$50
$650
Equipment
$125

Lift Rental
-----
$125

Lift Rental
-----
Column cover
-----
-----
$1,500
-----
Onsite lost time
1 Day
-----
1.5 Days
No Days Lost
Total Initial Cost
$900
$1,100
$1,975

$950

Maintenance Costs
$450

Patching holes and re-beeding, taping and painting every 5 years
$250

Touchup intumescent coating every 5 years
$1,500

Replace RFP column cover every 10 years
-----
Total 30-Year Cost
$3,150
$2,350
$4,975

$950

UL Design No. X509
Rating 3 Hr

1. Steel Studs — 1-5/8 in. wide with leg dimensions of 1-5/16 and 1-7/16 in. with a 1/4 in. folded flange in legs, fabricated from 25 MSG galv steel. Steel stud cut 1/2 in. less in length than assembly height.
2. Gypsum Board — Two layers of 1/2 in. thick wallboard
3. Screws — 1 in. long self-drilling, self-tapping screws, spaced vertically 24 in. on centers, except on the outer layer of wallboard on the flanges, which are spaced on 12 in. centers.
4. Screws — 1-5/8 in. long self-drilling, self-tapping screws spaced vertically 12 in. OC.
5. Corner Beads — No. 28 MSG galv steel, 1-1/8 in. legs. Attached to wallboard with 4d by 1-3/8 in. nails spaced 12 in. OC at each leg.
6. Joint Compound — 1/16 in. thick. As an option, nom 3/32 in. thick gypsum veneer plaster may be applied to the entire surface of Classified veneer baseboard.
7. Steel Column — Min size of column, W10 x 49, with outside dimensions of 10 x 10 in. with a flange thickness of 9/16 in., a web thickness of 5/16 in., and a cross.

Design No. X601
November 29, 1999
Rating - 2 Hr.

1. Steel Column — Min size W10x49. The column surfaces shall be sand-blasted and be primed with epoxy based or zinc silicate primers to an approximate dry film thickness of 0.003 in.
2. Flange Edge Reinforcement — 1/2 by 1/2, No. 19 SWG galv steel welded wire mesh. Butt ended mesh bent to fit tightly over flange edges along the column length. At a coating thickness greater than 0.50 in., galv or stainless steel flange edge clips of min diameter of 0.08 in., spaced at a max of 24 in. on center and at the ends of mesh shall be used.The mesh ends shall be fastened together across the flange faces with galv wire of 22 gauge or larger.
3. Mastic and Intumescent Coating.
Two component spray material applied in one or more coats as described in the application instructions.

Design No. X701
May 23, 2016
Ratings - 1, 2, 3 and 4 Hr.

1. Spray-Applied Fire Resistive Materials
For method of density determination, refer to Design Information Section, preceding these designs.
Rating Hr Min Thkns In.
The thickness contained in the table below are applicable when the Spray-Applied Fire Resistive Materials applied to columns flange tips are reduced to one-half that shown in the table below:
4 HR = 2-1/2"
3 HR = 1-1 1/16"
2 HR = 1-1/8"
1 HR = 1 1/16"

Blackrock Fireproof Column
Ratings - 2, 3 and 4 Hr.

(1) Concrete (2) Structural Steel (3) Vermiculite, a special proprietary insulating material (4) Outer steel shell that is permanently protecting the fireproofing material. Blackrock columns are rated and labeled by Underwriters Laboratories, Inc. for fire retardant classifications of 2, 3 and 4 hours. Columns are completely shop fabricated and shipped to the job site ready to erect.

Sheetrock Encased 2 Layers, 2 HR, UL X509
Labor
$550

4 Hours - frame and sheetrock
4 Hours - bead and taps
Material
$225
Equipment
$125

Lift Rental
Column cover
-----
Onsite lost time
1 Day
Total Initial Cost
$900
Maintenance Costs
$450

Patching holes and re-beeding, taping and painting every 5 years
Total 30-Year Cost
$3,600
UL Design No. X509
Rating 3 Hr

1. Steel Studs — 1-5/8 in. wide with leg dimensions of 1-5/16 and 1-7/16 in. with a 1/4 in. folded flange in legs, fabricated from 25 MSG galv steel. Steel stud cut 1/2 in. less in length than assembly height.
2. Gypsum Board — Two layers of 1/2 in. thick wallboard
3. Screws — 1 in. long self-drilling, self-tapping screws, spaced vertically 24 in. on centers, except on the outer layer of wallboard on the flanges, which are spaced on 12 in. centers.
4. Screws — 1-5/8 in. long self-drilling, self-tapping screws spaced vertically 12 in. OC.
5. Corner Beads — No. 28 MSG galv steel, 1-1/8 in. legs. Attached to wallboard with 4d by 1-3/8 in. nails spaced 12 in. OC at each leg.
6. Joint Compound — 1/16 in. thick. As an option, nom 3/32 in. thick gypsum veneer plaster may be applied to the entire surface of Classified veneer baseboard.
7. Steel Column — Min size of column, W10 x 49, with outside dimensions of 10 x 10 in. with a flange thickness of 9/16 in., a web thickness of 5/16 in., and a cross.

Intumescent 2 HR Field Applied Coating
Labor
$300

4 Hours - Install back up framing and install column cover
Material
$1,650
Equipment
$125

Lift Rental
Column cover
-----
Onsite lost time
1 Day
Total Initial Cost
$2,075
Maintenance Costs
$925

Relacing FRP Column Cover every 10 years
Total 30-Year Cost
$7,625
Design No. X601
November 29, 1999
Rating - 2 Hr.

1. Steel Column — Min size W10x49. The column surfaces shall be sand-blasted and be primed with epoxy based or zinc silicate primers to an approximate dry film thickness of 0.003 in.
2. Flange Edge Reinforcement — 1/2 by 1/2, No. 19 SWG galv steel welded wire mesh. Butt ended mesh bent to fit tightly over flange edges along the column length. At a coating thickness greater than 0.50 in., galv or stainless steel flange edge clips of min diameter of 0.08 in., spaced at a max of 24 in. on center and at the ends of mesh shall be used.The mesh ends shall be fastened together across the flange faces with galv wire of 22 gauge or larger.
3. Mastic and Intumescent Coating.
Two component spray material applied in one or more coats as described in the application instructions.

Spray on Fireproofing as per UL X716, 2 HR, 9/16" Thickness
Labor
$300

2 - two hour days per column
Material
$50
Equipment
$50
Column cover
$1,500
Onsite lost time
2 Days
Total Initial Cost
$1,900
Maintenance Costs
$950

Re-apply spray on fireproofing once every 10 years
Total 30-Year Cost
$7,600
Design No. X701
May 23, 2016
Ratings - 1, 2, 3 and 4 Hr.

1. Spray-Applied Fire Resistive Materials
For method of density determination, refer to Design Information Section, preceding these designs.
Rating Hr Min Thkns In.
The thickness contained in the table below are applicable when the Spray-Applied Fire Resistive Materials applied to columns flange tips are reduced to one-half that shown in the table below:
4 HR = 2-1/2"
3 HR = 1-1 1/16"
2 HR = 1-1/8"
1 HR = 1 1/16"

BRFC "BRIDGEPORT" 2 HR TYPE SS X 106
Labor
$300
Material
$650
Equipment
-----
Column cover
-----
Onsite lost time
No Days Lost
Total Initial Cost

$950

Maintenance Costs
-----
Total 30-Year Cost

$950

Blackrock Fireproof Column
Ratings - 2, 3 and 4 Hr.

(1) Concrete (2) Structural Steel (3) Vermiculite, a special proprietary insulating material (4) Outer steel shell that is permanently protecting the fireproofing material. Blackrock columns are rated and labeled by Underwriters Laboratories, Inc. for fire retardant classifications of 2, 3 and 4 hours. Columns are completely shop fabricated and shipped to the job site ready to erect.


   

Structural fire protection guards essential structural components from the devastating effects of fire. This course examines the various active and passive fire protection methods that are available with a focus on the features, types, and design considerations of prefabricated fireproof structural columns designed for exposed exterior and interior loadbearing columns.

Continuing Education Course
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