Category Archives: Product Focus

Custom Sheet Metal :: Custom Kitchen Hoods

Highlighting the latest functional art installations crafted by our workers. 

Our company fabricates, finishes and installs venting and non-venting custom hoods as accent pieces in homes across Middle Tennessee and Southern Kentucky.  We can manufacture the venting insert or you can bring us a factory-made one that we form the hood around.  Whether your style is contemporary, transitional, old world, or traditional RD Herbert & Sons craftsmen can create the perfect focal point for your kitchen.

See more Custom Kitchen Hoods fabricated by RD Herbert & Sons on Facebook.

Stainless Steel Kitchen Hood

Contemporary 24 ga Stainless Steel Kitchen Hood in a 3b Finish with accompanying  square duct cover.

Copper Island Hood

16 oz Copper Island Hood in a old world feel with rivets & custom aged patina finish with linear striations.

Copper Hood

Custom kitchen hood formed from 32 oz Copper Hood with 1/4″ Flat Bar trim. RD Herbert & Sons designed, fabricated & installed the Stainless Steel vent insert liner also.

Standing Seam Hood

Standing Seam hood constructed from 24 ga Rheinzink material

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Steel : Sheet :: Custom Sheet Metal

 Steel

  • Sheet: Available in 20-14 gauge with selected finishes for selected gauges.

Finishes:

Paint Grip

Paint Grip

Galvanized

Galvanized

Hot Rolled

Hot Rolled

Cold Rolled

Cold Rolled

  • Paint Grip  is galvanized steel that is processed through a phosphate bath. This provides a corrosion inhibiting, crystalline zinc phosphate surface perfect for adhesion of paint.  The characteristic dull gray color serves as a primer for painting.
  • Galvanized Hot-dipped in molten zinc which solidifies on the surface of the steel sheet causing suppression of normal zinc crystallization, creating fine crystals. This forms a physical barrier against corrosion.  Galvanized steel contracts 1/2 as much as steel.  The surface is flat and has a fine appearance after painting. Paintability is superior to regular spangle products.
  • Hot Rolled Acid pickling removes mill oxide, improving surface appearance, uniformity and finishing quality. Paint and enamel adhere well after cleaning.
  • Cold Rolled occurs with the metal below its recrystallization temperature (usually at room temperature), which increases the strength via strain hardening up to 20%. It also improves the surface finish and holds tighter tolerances. Commonly cold-rolled products include sheets, strips, bars, and rods; these products are usually smaller than the same products that are hot rolled.

Other  Materials & Finishes

Stainless Steel

Copper

Muntz

Aluminum

  • Sheet

Aluminum Finishes: Sheet :: Custom Sheet Metal:

Aluminum

  • Sheet: Available in .040—3/8” gauges/thicknesses, with selected finishes for selected gauges.   Lighter then most other metals and 1/3 the density of steel, this material is resistant to weather, common atmospheric gasses and a wide range of liquids.  It has the ability to be rolled to very thin gauges and still worked and formed.

Finishes:

Mill Finish

Mill Finish

Clear Annodized

Clear Anodized

Tread Bright

Tread Bright

  • Mill Finish is the natural appearance of aluminum as it comes from the rolling mill.  There is no external mechanical or   chemical finishing to the surface of the metal.
  • Clear Anodized An electrochemical process that enhances the aluminum’s natural oxide surface layer by forming an even more durable oxide film that can have a variety of colors.  Slight variations occur in texture, color, grain configurations and finish acceptance of materials used. Therefore, finished pieces may vary in tone or character from this image. Please order a sample for a more true representation of the finished piece.
  • Tread Bright is known for its cosmetic qualities and structural qualities in heavy thicknesses. The 6061 alloy has a mill finish with the raised “diamond” pattern and is used when structural strength is a requirement.

Other  Materials & Finishes

Stainless Steel

Copper

Muntz

Steel

Muntz Brass: Sheet & Plate :: Custom Sheet Metal

Muntz Brass

  • Sheet: less than 3/16 inch thick and at least 24 inches wide.
  • Plate: at least 3/16 inch thick and over 10 inches wide.

Available in 11ga -20 ga thicknesses. The structure of the metal, containing 60% Copper and 40% Zinc, makes it is stronger, harder, and more rigid than other forms of brass. George Fredrick Muntz invented the copper zinc hybrid in 1832. This alloy is favored for ships, signage and architectural applications.  Muntz can be used almost in the place of copper.  It is often confused with brass.

Finishes:

Muntz Brushed

Brushed

Muntz Mirror

Mirror

  • Natural Satin, is a general-purpose bright polish that is the most popular choice for architectural applications.( Special Order)
  • Mirror is polished to a mirror quality and has no grit lines.

Custom Sheet Metal: Tube & Pipe Stainless Steel Finishes

Stainless Steel

  • Tube & Pipe: Includes seamless and welded hollow products that may have cross sections that are round, square, rectangular or a special shape.

Finishes:

As-welded

As-welded

As-welded and Bright Annealed

As-welded & Bright Annealed

Cold Drawn Tubing

Cold Drawn Tubing

Open Air Annealed and Pickled

Open Air Annealed & Pickled

180-Grit Polish

180-Grit Polish

Finer Polished Finishes

Finer Polished Finishes

Buffed

Buffed

  • As-welded tube & pipe are produced by forming mill finished 2B sheet, strip or plate into the desired shape, welding the seam, and then cleaning the welds to restore corrosion resistance. This finish is specified for applications where corrosion resistance is important and aesthetics are not a concern. Round, square, and rectangular products are available in the as-welded condition. The weld is visible.
  • As-welded & Bright Annealed tube or pipe has been formed, welded, and heat treated (annealing) in a controlled atmosphere to obtain a uniform microstructure and desired mechanical properties. Bright annealing produces a bright, scale free finish that is suitable for use in corrosive applications.
  • Cold Drawn Tubing is used for applications requiring precise outside or inside diameter tolerances and smooth surface finishes. It is also specified for applications that require the higher strength of a cold worked product. Cold drawing produces a relatively smooth finish and increases the strength of the stainless steel.
  • Open Air Annealed & Pickled products have visible non-uniform dark scale on their surface. Annealing produces a uniform microstructure and ensures that the product will meet mechanical property requirements. This could be specified as an intermediate finish when further processing is expected or for use in elevated temperature applications. The scale produced during open air annealing is detrimental to corrosion performance and should be removed if the product will be used in an application where corrosion resistance is the primary concern.
  • 180-Grit Polish is the most common polished finish. Rougher grits (80 and 120-grit) are also available. Polishing can be specified on the inside or outside diameter or on both. Seamless, welded or cold drawn products can be polished. Polishing is available on round, square and rectangular tubing. On round products it is typically circumferential but some polishers can longitudinally polish. Other shapes are longitudinally polished.
  • Finer Polished Finishes (240, 280 and 320 grit) are produced for applications where a smoother finish is desired for aesthetic applications and where improved corrosion resistance or clean-ability is needed. Higher grit numbers produce smoother, finer and more reflective finishes. Photos of both a 240 and 320 grit finish are provided for comparison.
  • Buffed Finishes are achieved by mechanical polishing (typically to 320-grit) and then buffing. Like the No. 7 and No. 8 sheet finishes, different levels of buffing are available and the visibility of residual polishing lines can vary. Buffed finishes are used for aesthetic applications and where a higher level of corrosion resistance or clean-ability is desired. A visual standard is suggested if the application is aesthetic, and a maximum surface roughness should be specified if the goal is improved corrosion resistance or clean-ability. The photo shows a highly buffed finish that is equivalent to a No. 8 sheet finish. The remnants of polishing lines are only visible upon close examination.
Photos and information sourced from: SSINA: Specialty Steel Industry of North America.  Visit their site for
additional information on this product.

Other  Materials & Finishes

Stainless Steel

Copper

Muntz

Aluminum

Steel

What type of residential roofing do you do?

This is a common question when we answer the phone.  A better question might be;  what type of roofing don’t we do?  We specialize in working on buildings that require the different, the unusual, and the unique, while not overlooking those that need maintenance, repairs or a new roof.

RD Herbert & Sons works on commercial, residential, industrial and institutional buildings.  Historical renovations have different requirements from shingle re-roofs which are completely unlike a low slope new-construction.  Your structure may have elements of all three or none of these options.  We work with you to discover your needs and how to best serve them.

Residential roofs have several roofing material options that we install.

Shingles are the most common because they are readily available for a reasonable cost with aesthetic appeal.  There are two basic styles of shingles: three-tab or dimensional made from two main materials: glass fiber or organic. Dimensional shingles can also be called Architectural or Laminated shingles.   Shingles are a low maintenance option for your roof.  Typical manufacturers warranties run from 20 years to lifetime coverage. NRCA has an advisory bulletin outlining some typical warranty conditions.

Shingle manufacturers:

Wood Shakes are a natural material that brings a lot of character to a home.  Split from western red cedar, cypress, pine or redwood logs, to create a unique, individual roof.  Cedar shakes are what we commonly install because they can be pressure treated with fire retardant & chemical preservatives to extend the lifecycle of the material.  Shakes are considered a high maintenance product due to mold, rot and insect potential problems.  Proper installation of shakes requires knowledge and skill for quality roof as this material is more complicated than shingles.

Slate is another natural material option for your home.  Color is determined by where it is quarried and changes over time depending on weathering.  “Unfading” or “permanent”  slate changes little over the years, while “weathering” or “semi-weathering” have varying degrees of color alteration.  The finished roof should only be walked upon by a trained professional to reduce the possibility of cracking the slate pieces.  This is one of the most costly products upfront but can last for over 50years.

Slate manufactures:

 

Clay Tile roofs are the assembly of thousands of individual tiles attached to the deck.  The variety of profiles, styles, finishes and color differs by manufacturer with the standards being; barrel, flat, and interlocking.  All the accessories necessary to complete a roof are purchased through the tile manufacturer. Tile is a low maintenance product that will not rot, burn or incur damage from insects.  It is a heavy material that can require additional support in the deck and framing. Rooftop maintenance should be done by a professional to not damage the tiles.  Tile is one of the costliest roofing materials.

Clay Tile manufacturers:

 

Metal roofs can be installed on both low-slope or steep slope conditions.  Flat lock roofs are ideal for slopes less than 3” per foot because each panel is locked into the next and then soldered or welded together.  Steep slope roof systems have three general categories: architectural metal panels, structural metal panels and metal shingles.  Architectural metal panels, also known as standing seam panels, are designed to shed water rapidly.  Structural metal panels have a more industrial or agricultural profile.  Metal shingles offer the look of tile, shingle, or slate with less weight.  Metal roofs are low maintenance, durable, fire resistant and recyclable. A professional sheet metal company should install these roofs so they are installed correctly.

Metal panel, sheets & coil manufacturers:

  

Stone coated steel & metal shingle manufacturers

Low-Slope roofs are not common on residential homes. Single-ply, modified bitumen, and built-up roofs are the three basic systems.  Single-ply comes in either EPDM, TPO and PVC membranes.  Modified bitumen applies in two layers of membrane.  Built-up is multiple layers adhered together with hot asphalt.  We do recommend that if your home needs a flat roof to contact a contractor who is in good standing with the manufacturers of the system.  Often we are asked to fix single ply roofs installed by companies who typically install shingles.

Low-Slope manufacturers:

   

Green roofs are installed over low sloped roofs or waterproofing.  Drainage mat is engineered to contain moisture or wick it away from the roots.  Specialized growth media is required to ensure that the plants can propagate and get the nutrients necessary.  Using native or regional plants helps reduce watering during the summer months.  Plants are installed either individually or in pre-grown trays.  One benefit green roofs offer is added insulation value.

Green Roof Manufactures:

 

Custom Sheet Metal: Bar & Shapes Stainless Steel Finishes

Stainless Steel

  • Bar: from 1/4 inch to 10 inches wide and has a thickness of 1/8 inch to 8 inches. Flats that are formed using hot or cold rolling, forging, cold drawing or extrusion. 
  • Shapes: from 1/4 inch to 10 inches wide and has a thickness of 1/8 inch to 8 inches and a diameter or size of 0.125 inch or greater. Rounds, squares, octagons, hexagons and other shapes that are formed using hot or cold rolling, forging, cold drawing or extrusion

Finishes:

Hot Rolled, Forged, Pressed or Extruded

Hot Rolled, Forged, Pressed or Extruded

Cold Drawn or Rolled

Cold Drawn or Rolled

Hot Or Cold Drawn, Annealed And Pickled

Hot Or Cold Drawn, Annealed And Pickled

Polished Bar or Shapes

Polished Bar or Shapes

Ground or Centerless Ground Finish

Ground or Centerless Ground Finish

  • Hot Rolled, Forged, Pressed or Extruded products have a non-uniform dark appearance from hot processing. The dark coloration is associated with the surface oxide scale. This is an interim finish that is sometimes purchased when machining or other forming or finishing operations are planned.
  • Cold Drawn or Rolled products have a relatively uniform dull silver appearance although forming marks may be visible. This is often an interim finish when further machining, drilling or finishing is planned. For applications like shafts, the cold drawn finish is typically peeled before use.
  • Hot Or Cold Drawn, Annealed & Pickled products have been formed, heat-treated (annealed) to obtain a uniform microstructure and desirable mechanical properties, and then pickled to remove the scale that forms during heat-treating. The resulting finish is a uniform dull, silver gray. Pickling restores corrosion resistance and makes the bar suitable for applications where corrosion resistance is required. Examples of a round bar, hexagonal bar, square bar and three extruded shapes are shown.
  • Polished Bar or Shapes have been formed, annealed and pickled prior to polishing. The finish is characterized by long scratch lines from mechanical polishing. There may be machining prior to polishing to achieve desired dimensional tolerances. The polishing is done with polishing belts, which follow the contour of the shape or bar. It does not change the dimensions of the bar or shape. In comparison to grinding, it can produce a smoother finish but grinding produces tighter tolerances.
  • Ground or Centerless Ground Finish is similar in appearance to a polished finish. Circumferential scratch lines from grinding are visible. The finish can vary from coarse to smooth depending on the grinding stone. This finishing technique produces tight tolerances and can correct dimensional problems.
Photos and information sourced from: SSINA: Specialty Steel Industry of North America.  Visit their site for additional information on this product.

Custom Sheet Metal: Plate Stainless Steel Finishes

Stainless Steel

  • Plate: at least 3/16 inch thick and over 10 inches wide.  

Finishes:

Scale not removed Finish

Scale Not Removed

Blast Cleaned

Blast Cleaned

Cleaned and Pickled

Cleaned & Pickled

Surface Cleaned and Polished

Surface Cleaned & Polished

  • Hot-Rolled Or Cold-Rolled & Annealed, Scale Not Removed is specified for heat resisting applications or as an intermediate finish. Scale gives the plate a dark non-uniform appearance. When scale is visible, surface chromium has been lost, and this reduces the stainless steel’s corrosion resistance. Residual scale is not a concern for high temperature applications, but it should be removed if the stainless steel plate is to be used for an application where corrosion resistance is important.
  • Hot-Rolled Or Cold-Rolled, Annealed, Blast Cleaned plate has a dull, gray appearance. After rolling, the coil is heat treated to produce a uniform microstructure (annealing) and to meet mechanical property requirements. Blast cleaning to remove scale is typically done with carbon steel shot, which can leave steel embedded in the surface. This is an intermediate finish that is purchased when there will be further processing, such as machining, that will change the finish appearance.
  • Hot-Rolled or Cold-Rolled, Annealed, Abrasive Cleaned & Pickled is a dull silver gray finish. Finish uniformity varies with plate thickness and thicker sections have a less uniform appearance. There may also be shiny areas if surface defects are removed by grinding. It is the most commonly specified plate finish and it is used for applications where corrosion resistance is important and for heat resisting applications.
  • Hot-Rolled or Cold-Rolled & Annealed or Heat Treated & Surface Cleaned & Polished is generally finished in the same grit range as a No. 3 or No. 4 polished sheet or strip. It is characterized by short, parallel polishing lines, which extend uniformly along the length of the plate. It is obtained by mechanically polishing with gradually finer abrasives. The final finish is generally between 80- and 150-grit but may be finer if specified.
Photos and information sourced from: SSINA: Specialty Steel Industry of North America.  Visit their site for additional information on this product.

Custom Sheet Metal: Copper Finishes

Copper

Copper is available in 16, 20, 32 & 48 oz thicknesses.  Typical sheet width is 48”x120”  Most of our copper products can have a patina finish applied including a matte or gloss clear coat.  Please note each piece of copper ‘takes’ patina differently. No two copper items ever turn out exactly the same.  Each copper item, when completed, ends up with a patina that is in a range of color tones (from lighter to darker). Patina coloration is influenced by material, temperature, and by the individual patina mixture. The combination of these three elements that ultimately dictates the product’s final color and tone. This guarantees you always receive an original unique item.  Be aware that different lighting will make the copper look lighter or darker.

Copper Facts: antimicrobial, bio-static, recyclable, and the USA is self-sufficient in copper production.

Finishes:

Bright Mill Copper Finish

Bright Mill

Light Antique Copper Finish

Light Antique

Medium Antique Copper Finish

Medium Antique

Dark Antique Copper Finish

Dark Antique

Non Directional Sanded Copper Finish

Non Directional Sanded

Inline Sanded Copper Finish

Directional Texture

Hammered Copper Finish

Hammered

  • Bright Mill: new penny color people associate with copper.  Due to the material’s natural ability to patina, or age, over time a clear gloss coat is required to maintain this color.
  • Light Antique Finish: slightly browner than the bright mill finish, close to a cinnamon color.  The sanding or hammering processes (outlined below) can be added to the finishes to further define the copper.
  • Medium Antique Finish: mid-brown color ranging from a red undertone to burnt ocher.  The sanding or hammering processes (outlined below) can be added to the finishes to further define the copper.
  • Dark Antique Finish: dark brown color leaning toward a mahogany or dark chocolate.  With this darker finish, less patina or ageing will happen after installation. The sanding or hammering processes (outlined below) can be added to the finishes to further define the copper.
  • *Non Directional Sanding  produced using an orbital sander to create an overall mottled appearance.
  • *Directional Texture is characterized by parallel polishing lines, which extend uniformly along the length of the piece. It is  obtained by either mechanically polishing with gradually finer abrasives.  There are six standard variations available: fine satin, medium satin, coarse satin, uniform, hand rubbed and brushed.
  • *Hammered copper varies based on closeness of the hammer strokes, size of the hammer and force used during the process.

View our projects to see these finishes.

Additional information available: Copper.org.  Visit their site for additional information on this product.

Project Gallery: Single-Ply Roof Systems

As one of the first to embrace the technology in the late 1970’s, we continue to install and maintain EPDM, PVC, and TPO low-slope roof systems. We have installed 14,832,759 square feet of Carlisle Single-Ply roofing since 1980 on residential and commercial buildings.
Projects included from Commercial, Residential, Green Roof, Architectural Sheet Metal.  For more information on a certain project, click on the photo to link to our website for additional photos.

Commercial

Black Fox Elementary School

Carlisle EPDM Roof @ Black Fox Elementary School – Murfreesboro, TN

Montgomery Central High School

Carlisle TPO Roof @ Montgomery Central High School – Cunningham, TN

GracePointe Church

Duro-Last PVC Roof @ GracePointe Church – Franklin, TN

MTSU COEBS

Carlisle EPDM Roof @ MTSU College of Education & Behavioral Science – Murfreesboro, TN

Central Wastewater Treatment Plant – Nashville, TN

Carlisle EPDM Roof @ Central Wastewater Treatment Plant – Nashville, TN

100 Oaks Mall: VUMC Medical Center

Carlisle TPO Roof @ 100 Oaks Mall: VUMC Medical Center – Nashville, TN

Residential

Vaughn’s Gap Residence – Nashville, TN

Carlisle TPO Roof @Carlisle EPDM Roof @ Swift Road Residence – Greenbrier, TN

GracePointe Church

Duro-Last PVC Roof @ GracePointe Church – Franklin, TN

Green Roof

RD Herbert & Sons Building

Carlisle EPDM Roof @ RD Herbert & Sons Building – Nashville, TN

Hillsboro Road Residence

Carlisle TPO Roof @ Hillsboro Road Residence – Nashville, TN

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