Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

Accessories
Additional Materials necessary for the roof installation.
 
Adjust Labor
The tool that allows the individual estimator control over all final labor numbers used in each job bid.
 
ARP
Asphalt Resistant Product (ARP) is a modified Duro-Last membrane that is resistant to asphalt. This is important since standard Duro-Last membrane is not resistant to asphalt and can be damaged by direct contact with asphalt products.
 
Average Sheet Size
When operating in the “Quick Bid” mode an estimator choice is required to determine the average size of sheets to be installed in a given roof area.
 

B

Bid Total

The Subtotal in this column plus the Dollar Mark Up equals your Bid Total.
 
Building Type
In the management program the contractor or estimator is allowed to set up their own categories of building types. This will be useful in tracking job information related to building types. These can be any names you choose and can be the same or different than your Labor Template Names.
 
Built Up Roofing
BUR, Modified & Combinations
When the top layer of roofing is a Gravel Surface or Smooth Surfaced built up roof or a Modified Bitumen roof you will want to choose the combination that best describes the existing conditions you have discovered by core sampling.
 

C

Cant
A sloped portion of a parapet or parapet flashing that is neither horizontal nor vertical but usually at a 45-degree angle going from the Roof Deck to the vertical surface of the parapet wall.

Capstones
Clay tile or Pre-cast stones placed on top of parapet walls, especially in old town style buildings.
 
Capstone Replacements
Capstones purchased to replace existing damaged capstones.
 
CDR Rings
Fiberglass rings that are set on the inside of a drain boot to create a seal between the drain boot and the drain tube. There are two rings in each set and both must be used according to Duro-Last specifications.
 
Client
A customer; a person or organization to whom goods or services are provided and sold.
 
Closed Curb
In this curb flashing the square or rectangle is welded shut so that the curb has to be pulled down over the top of the penetration.
 
Coal Tar Pitch
A roofing product that looks and acts similar to asphalt but has a lower melting point and is known for being a better product. It has some negative features both for health reasons and for comfort reasons. Many people react to being exposed to it by a burning of the skin that looks and acts like a bad sunburn. Caution and care should be used around this product.
 
Collection Boxes
These are made by Exceptional Metals. There are two styles of collection boxes with two sizes for each style. The styles are with or without a through wall Scupper incorporated into the Collection Box.
 
Concrete
The deck is a poured place or pre-cast structural concrete deck
 
Conduit Washers
When a smaller pipe is going through a side wall, no pipe stack may be required as long as the conduit washer detail will work in that specific application. This applies to the following size, side wall pipe installations (1/2”, ¾”, 1”)
 
Contractor Applications
In this area (on the fly or through the management program) we allow you to create your own customized applications. You can include materials, material cost and labor rates in any combination. If you do it in the management program you can preset customized applications. With these preset, you only have to enter whatever count or units of that application you need to calculate the desired result.
 
Core Cut
A cut out of roofing that goes down through all layers of roofing, insulation and base sheet to the structural deck. The cut is made to give you necessary information for making all sorts of roofing decisions. Eg.( whether or not a tear off is necessary, moisture content, length of screws needed, existing structural deck, etc.)
 
Corners
A prefabricated item for wrapping around corner details on a roof. There are several different styles of corners available from Duro-Last. All are 90 degree right angle corners. The standard is 6” x 6” on each side of the unit. This corner is 6” tall. If a taller corner is required Duro-Last provides 18” tall corners. For the more unusual cases a butterfly corner can be special ordered from Duro-Last. The butterfly corner can be used where two corners meet at a given point.
 
Cost per Square Foot of Roof Area
This calculation takes the total square footage of the entries you made on the Roof Sections and divides it into your Bid Total to give you a cost per square foot of the Roof Area.
 
Cost per Square Foot of Duro-Last Membrane
This calculation takes the total square footage of Duro-Last membrane being purchased to cover the Roof Sections and the Parapets and divides it into your Bid Total to come up with a cost per square foot of membrane being installed. Some times this is significantly different than the Cost per S.F.of Roof Area, especially if you have a lot of parapet walls that are to be covered.
 
Crane
A hoisting device, operated by your people or by the provider of the service to hoist or lift supplies and equipment to and from the roof top
 
Curb
A square or rectangular penetration in a roof. This penetration can either extend up out of a roof or through the side of a roof through a parapet or side wall. It can also be a parapet wall roof drain or scupper.
 
Curb Counter Flashing
A vertical piece of metal with a small kick out at the bottom edge of the flat metal. It is used to divert water coming down the side of the Unit over the Duro-Last curb termination.
 
Curb with Cant
In this curb there is a normal skirt, length, width and height. The difference is that there is a sloped portion of the curb from the skirt to the vertical surface that slopes up at 45 degree angel from the flat to the vertical.
 
Curb with Top
In this curb the flashing is closed and has a top so that it covers a curb on all sides and over the top of a roof penetration, usually that has been covered over since it is not longer being used.

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D

Deck Tab
The tab on the parapet flashing that is fastened into the Roof Deck

Deck Type
This is the structural component of the building to which underlayment, insulation and roofing is attached. The software offers the following Deck Type choices:
  • Wood
  • Structural Metal
  • Metal Retro-fit
  • Concrete
  • Gypsum
  • Lightweight Concrete over Steel
  • Lightweight Concrete over Concrete
  • Lightweight Concrete over Other
  • Tectum
  • Purlin Fastened

Discounts
There is a box beside each discount that when checked includes that discount in the total of the bid, at the bottom of this screen. There is a warning when you check each box that is your responsibility to determine if you want the discount included in your bid price.

Dollar Markup
This is the actual dollar cost of markup added to your subtotal to give you your Bid Total.
 
Downspouts
Exceptional Metals, a sister company to Duro-Last roofing sells these. There are two styles of down spouts for each of the sizes. The styles are either opened or closed fronts.
 
Drain Boots
A drain boot looks like a pipe stack inverted. It always uses two different colors of Duro-Last membrane. Usually tan on the vertical stack and white or the roofing membrane color on the skirt. When a compression drain ring is not or cannot be reused a Duro-Last drain boot can be inserted into the drain tube and set in a dura-caulk or Vulkem sealant using CDR rings.
 
Drain Ring (Compression)
A cast iron or PVC ring that is bolted to the Roof Drain. This ring is designed to sandwich roofing and sealant between the drain and the drain ring to create a seal.
 
Drain Ring (CDR Ring)
A pair of fiberglass expansion rings that inserted into a Drain Boot which has been installed into an existing drain line. The string that holds the ring is clipped allowing the ring to expand and place under compression the Drain Boot and sealant into the drain line.
 
Drip Edge
A vinyl edge detail that does not retain water or gravel, but allows the free flow of water over the edge of the roof. It is attached to the edge of the roof with screws installed through pre-punched holes and it has Duro-Last membrane skirt welded to it. This skirt is pulled over the fastener holes and welded to the main roof or parapet material.
 
Drop
The distance of the parapet flashing material that extends down on the outside of the parapet wall.
 
Dumpster
A unit that is used to dispose of roofing materials or waste materials. In this Estimating Program we have included units that can contain 20 yards of material. They are usually units that can be rolled off a truck bed and left on site and picked up when full and ready for hauling to a landfill.
 
Dura-Caulk Plus
This product come in a caulking tube and can be used in many applications, including drain boots, term bars, fascia bars, pipe stacks, etc.
 
Dura-Flash
A flat vinyl bar with a 6” Duro-Last membrane skirt welded to it. It can be used in areas where other terminations may not be possible.
 
Duro-Last Sheet
The Estimator must enter each individual Duro-Last sheet. The program will not figure any laps or waste for you. This is the responsibility of the contractor, if this option is selected.
 

E

Exceptional Metals
Exceptional Metals are made by Duro-Last's sister company. They can custom make many products that can be used in with the Duro-Last roofing system. We offer four items in the program for 2.0. The include Gutters, Down Spouts, Pitch Pans and Collection Boxes.

Edge Blocking
Edge blocking refers to the wood blocking that is installed on the edge of the roof or the parapet.
 
Estimate
To submit a price: to assess a roofing job to be done, and to state a likely price for it. It can be synonymous with “bid”.
 
Estimate Review (Bid Review)
This page or screen is divided into three columns. The left column is a listing of all purchases of materials, the center column has labor, subcontractor and services, and the right column has totals, discounts, mark up and totals.
 
Equipment Rental
Any equipment that a company might rent in the performance of a roofing estimate or bid.
 

F

Fascia Bar

1-3/4” Fascia Bar: A 1-3/4” tall x 10’ long vinyl bar with pre-punched holes in it every six inches. It has a beveled edge on the top and bottom of the bar. It is designed to receive a cover strip. It is used to create a compression seal between the Duro-Last roofing or flashing material and other objects. In some applications a sealant is used between the roofing and flashing material and other objects, such as parapet walls, curbs, etc. The bar is fastened into the wall or curb with screws or other fasteners and are drawn tight to create the compression seal. Additional sealant is placed on the high edge of the termination bar. In some cases no sealant is required.

4” Fascia Bar: A 4” tall x 10’ long vinyl bar with pre-punched holes in it every six inches. It has a beveled edge on the top and bottom of the bar. It is designed to receive a cover strip. It is used to create a compression seal between the Duro-Last roofing or flashing material and other objects. In some applications a sealant is used between the roofing and flashing material and other objects, such as parapet walls, curbs, etc. The bar is fastened into the wall or curb with screws or other fasteners and are drawn tight to create the compression seal. Additional sealant is placed on the high edge of the termination bar. In some cases no sealant is required.
 
Fascia Cover
 
1-3/4 Fascia Cover (Vinyl): A snap on cover that snaps over the beveled edges of the fascia bar. It gives a smooth finished appearance.
 
1-3/4” Fascia Cover (Metal): A metal snap on cover that snaps over the beveled edges of the fascia bar. It gives a finished appearance. (See color chart.)
 
4” Fascia Cover (Vinyl): A snap on cover that snaps over the beveled edges of the fascia bar. It gives a finished appearance. (white, tan and gray options)
 
4” Fascia Cover (Metal): A metal snap on cover that snaps over the beveled edges of the fascia bar. It gives a finished appearance. (See color chart.)
 
Fasteners
A device that is used to fasten two things together. The main options in this program are screws of various styles, auger type fasteners, and metal anchors.
 
Fasteners and Plates
Fasteners and Plates used to attach the underlayment or insulation, along with the Roof Sections to the structural roof deck.
 
Finish
Once you have completed all the material requirements the final icon titled, Finish will highlight for you to review your estimate.
 
Fire Rated Underlayment
Underlayment that helps provide a fire rating for the roofing system. Requirements are in the Duro-Last Roofing, Inc., specification manual. The ones offered in this estimating program are:
  • FR10
  • FR50
  • Elk FB1S
  • Elk FB2s
  • ¼” Dens Deck
  • 3/8” Dens Deck
  • 5/8” F/C Sheet Rock (Gypsum)
Flute Filler
Special cut insulation panels that are made to be installed between the ridges of a standing seam metal roof, prior to covering the entire roof with a board style insulation. The flute fillers are thick enough to be level with the top of the ridges of the standing seam metal roof.
 
Fork Lift
A hoisting device, operated by your certified personnel or by the provider of the service to hoist or lift supplies and equipment to and from the roof top or around the job site.
 

G

Geotextile
Geotextile is thin black mat that can act as an underlayment for the installation of a new Duro-Last Roof. This underlayment comes in a roll with 4500 s.f. on a single roll. It is 12'6" x 360'

Get Quotes
If pricing has not been set up in the management page or if current pricing is not available in the estimating program a quote may need to be obtained from a supplier of this product. This forces the estimator to get the quote before the quote can be finalized. Some of the items that may need a current quote follow:
  • Tapered EPS
  • Tapered ISO
  • Tapered Perlite
  • Tapered Crickets
  • Rigid ISO
  • Other Rigid Board Insulation
  • Flute Filler.
Gravel Stop
A vinyl edge detail that has a vertical edge above the roof line that can retain water or gravel. It is attached to the edge of the roof with screws installed through pre-punched holes and it has Duro-Last membrane skirt welded to it. This skirt is pulled over the fastener holes and welded to the main roof or parapet material.
 
Gutters (Exceptional Metals)
Exceptional Metals provides four different styles of gutter and each style comes in three different sizes, along with needed accessories.
 
Guttering and Downspouts
Guttering collects the water that runs off of the roof and directs it into downspouts that carry the water to the ground or into a drainage system.
 
Gypsum
This deck is either a poured in place or pre-cast panels of Gypsum. If it is poured in place it is usually over a foam board set on a steel structure. If it is pre-cast it has a paper face to separate it from the steel structure since Gypsum is a corrosive product.
 

H

Heavy Wall L & Z
This detail is used where a standing seam metal roof ties into a side wall that extends above the roof. Attempting a termination into a standing seam side wall can be very difficult so this detail can be advantageous. A portion of the side wall panels is cut out and removed. Usually between 8” and 12” above the roof line. Then a heavy gauge “L” angle with at least 6” on the bottom of the “L” and at least 3” taller than the side wall panels you have cut out. The vertical part of the “L” is inserted behind the side wall panels and the horizontal portion is attached to the steel deck with appropriate screws. After the roofing system is installed a Duro-Last parapet flashing is installed and terminated on the vertical portion of the “L” below the cut portion of the side wall. Then a “Z” flashing is slipped up behind the sidewall panels that overlaps the termination on the “L”. This “Z” flashing provides closure for the bottom of the sidewall panels and counter flashing for the termination detail. The side wall panel, “Z” flashing and the top edge of the “L” are stitch screwed together to provide proper support for the wall panels and the flashing detail.

Home Screen
The first screen to appear when Bid-Advantage is opened. On it you can enter information about the customer, building, and options pertaining to the roof sections.
 
Hours of Labor
One option or form to have estimated labor reported in throughout the bid process. By the number of hours needed to do the work.
 
HVAC
Heating, Ventilation, and Air Conditioning (HVAC) A contractor who specializes in working in this area of expertise.
 

I

Icons

An icon is a simple button linking to the appropriate page as the image. An icon can also be used to perform a specific action such as creating a New item or Saving the current.
 
Insulation
An underlayment that also provides insulating qualities for the building.
 
Insulation on Curbs
Many curb units need insulation installed on the side of the units prior to installing the curb flashing. In most cases this is 1-1/2” so we have defaulted the program to calculate 1-1/2” ISO for this process, along with fasteners and plates.
 

 

J

(No Terms)Back to Top

K

(No Terms)Back to Top

L

Labor

The estimated time it will take a person or persons to perform certain tasks.
 
Labor Cost
The program has labor tables that are used to calculate the base line labor calculations used in this estimating software. They are a baseline only and will not work in all conditions or for all contractors.
 
Layer
Multiple layers of underlayment or insulation can be installed on a roof. Layer # 1 represents the layer closest to the structural roof deck with the # 2 installed on top of # 1, etc.
 
Length of Wall
The length of a wall or portion of the length of a wall where the currently entered information applies.
 
Lift and T-Bar
In this choice it is assumed the unit that sets on the curb is being picked up and the Duro-Last curb flashing extends up the side of the curb and is set on the side of the curb in a strip mastic sealant and term bar attached through the side of the curb. A secondary sealant of dura-caulk or Vulkem is applied to the top edge of the term bar. The unit is then re-set, probably overlapping the term bar termination.
 
Lift and Tuck
In this choice it is assumed the unit that sets on the curb is being picked up and the Duro-Last curb flashing extends up the side of the curb and is folded over on top of the curb base and fastened off to the curb. Then the unit sets back down on the new curb flashing.
 
Lightweight Concrete
This is a poured in place product that is cementious with lots of fillers like perlite and other products to keep it lightweight. It is often used to create slope in a roof. It can be poured over a variety of different decks.
 
Lightweight Concrete over Steel: Same as above
Lightweight Concrete over Concrete: Same as above
Lightweight Concrete over Other (Tectum, etc.) Same as above
 

M

Man Hours
A generic term with general acceptance used to define the number of hours required for a person or persons, male or female, to perform a task or tasks.

Markup
Markup is set up in the Management Program. You can set how you want to apply overhead and profit to the job and any other mark up you choose. It can be based on a percentage of the subtotal or on your man days of work bid on this job.
 
Markup Factors (Tear Off)
There are a variety of reasons a tear off could be easier or harder to remove and dispose of properly. We have included four specific reasons and one generic to make allowance for any and all conditions that you feel may make the tear off harder or easier for you to perform.
  • High Moisture
  • Coal Tar Pitch
  • Hot Mopped Insulation
  • Hot Mopped Base Sheet
  • Additional Markup
  • Total Markup
Masonry
Materials that are normally installed by a mason, such as brick, block or stone.
 
Masonry Fastener
A fastening device that is installed into structural concrete or masonry.
 
Masonry Work
Work that is done by a “mason” or one who works with brick, block, stone and capstones and uses a concrete mortar mix for setting these products.
 
Material Cost
The cost of materials.
 
Metal Retro 4x4, 4x8, 4x12
When retro-fitting a standing seam metal roof, the roof panels often overhang the side wall panels by several inches. It is sometimes advantageous to cut these panels flush with the outside of the side wall panels and then install a metal cover that is attached to the roof panels but overlaps the sidewall panels. Depending on several factors you may want this “metal retro” to extend down over the side wall panels in various heights. This panel can than accommodate a new gutter installation and allow for termination of the new roofing system in the back of a new gutter or termination can be made on this “metal retro” edge.
 
Metal Retrofit
Where the steel roof deck was also the original roofing system of a building. Usually found on all steel buildings or pole barns.
 
Metal Scupper
This is a metal sleeve that is inserted through the wall from the outside and it is lined with a standard Duro-Last Scupper with a skirt welded to the metal flange on the outside of the wall and has a standard skirt on the inside of the wall that will be welded to the field sheet and parapet material. The metal sleeve gives support to the scupper sleeve.
 
Metal Snap Cover
A snap on cover that snaps over the beveled edges of the fascia bar or the base metal of Duro-Last’s two piece compression metal or Gravel Stop. It gives a smooth finished appearance. (See color chart)
 
Metro Mix
A dry powder that can be mixed with water to patch or repair gypsum.
 
Mortar Mix
A portland concrete powder and sand mixture when mixed with water creates concrete mixture that is used to set brick, block and capstones in place.

N

Next
From the current page takes you to the following pages in the line of estimating pages.

New Item
When creating a new instance of an item simply click on the New icon. For example, here are the titles for a few items when adding a new instance.
 
Roof Sections: New Section
Parapets: New Parapet
Curbs: New Curb
 
There also may only be a simple icon, titled New for perhaps the Accessories. Once you have clicked the icon you can edit the appropriate attributes associated with that product.
 
No Lift and T-Bar
In this choice the unit cannot or does not need to be lifted. The vertical side of the curb flashing is set in a strip mastic sealant and term bar is attached through the side of the curb. . A secondary sealant of dura-caulk or Vulkem is applied to the top edge of the term bar.
 
No Lift and Counter Flash
In this choice the unit cannot or does not need to be lifted. The vertical side of the curb is flashing is fastened with appropriate fasteners through the side of the curb every 6”. Then a counter flashing is inserted up behind the unit flashing and overlapping the termination of the curb by at least 3”.
 
Non-Duro-Last Items
Items not specifically sold by Duro-Last.
 
None
Specifies that none of the options are appropriate or necessary.
 
Nova Rollout
An underlayment that comes in 720 square foot rolls. It reminds you of carpet underlayment when you see it. It comes in a 12' x 60 roll
 
Number of Sections
The number of pieces an estimator wants the previously entered “length of wall” to be made up into so that they can be sizes manageable by the installation crew.
 

O

Open Curb
In this curb flashing the square or rectangle is not welded shut but on one side there is enough material included to weld over as a lap. This allow the installer to pull the curb around a penetration without having to drop over the top of the penetration.

 
Option
A Choice.
 
Other Counter Flashing
A vertical piece of metal with a small kick out at the bottom edge of the flat metal. It is used to divert water coming down the side of a vertical surface over the top of a vertical termination of the roofing or flashing.
 
Other Rigid Insulation
Board Style insulation made of products other than polyisocyanurate, e.g. Extruded Polystyrene, Perlite, etc. These boards come in various thickness.
 

P

Panduit Straps
A stainless steel strap, that is installed with a “panduit tool”. It is wrapped around the top edge of a pipe stack, after sealant has been applied between the pipe stack and the pipe. The panduit strap is cinched down tight to the Duro-Last membrane to create a seal between the pipe stack and the pipe.

 
Parapet
The wall surrounding a roof section where “Parapet Flashing Material” must be ordered tying the wall waterproofing to the roof section waterproofing.
 
Parapet Fasteners
Fasteners used to attach Parapet Wall Flashings to the structural parapet wall.
 
Parapet Flashing
The Duro-Last material custom made to waterproof the tie in between the Roof Sections and the Parapet Walls.
 
Paraseal Caulk
Paraseal replaces Vulkem as the alternate sealant / caulk for Duro-Last Roofing. It is no longer a supported sealant for Duro-Last. Use Duro-Caulk Plus instead.
 
Percentage Markup
This reflects what percentage of the Subtotal your mark up equals
 
Pipe Stacks
Pipe stacks are flashings to go around plumbing vent stacks, hot stacks or any round penetration in the roof. Duro-Last can provide almost any size required. The list in this program has some limits.
 
Pitch Pocket Filler
Used to fill in around one or multiple unusual roof penetrations that are congregated in a round or rectangular penetration. A curb or pipe stack may be used to flash in the larger penetration but Pitch Pocket Filler is used to seal around the individual penetrations.
 
Plastic on Parapets
When a separation is required between parapet flashing material and remaining asphalt on a parapet wall.
 
Plastic On Curbs
If there is asphalt residue on the side of the curb wrapping with polyethylene film is required to keep a barrier between asphalt and the Duro-Last membrane.
 
Plywood
As the name suggests, plies or layers of wood veneer are laminated or glued together to form a 4’ x 8’ panel. Various thickness are available.
 

Q

Quantity
The total number of items necessary for the Bid.

 
Quick Bid
This is the faster way to create a bid or estimate for a particular price. Entire sections of roof, no matter how large can be entered, along with pertinent information to obtain a price of doing the work. The program will calculate waste and laps for you if this option is selected.

R

Remove
To remove information that has been previously saved and added to the estimate

 
Review Estimate
This Screen Allows you to get an over view of the entire project summarized in subtotals on one page, along with any discounting and mark up you have in your bid.
 
Rigid ISO
Rigid means it is in a board form and ISO is a term used to represent the product technically known as “Polyisocyanurate Insulation”. It comes in square or rectangular boards of insulation that come in various thickness.
 
Roof and Edge Blocking
Wood that is installed at the perimeter of the roof sections where Duro-Last termination details are going to be performed.
 
Plywood Edge ½”x 3-1/2”: ½” plywood cut into strips with each strip being 3-1/2” wide
Plywood Edge ¾” x 3-1/2” ¾” plywood cut into strips with each strip being 3-1/2” wide
2 x 4 Wood: A piece of wood in any length with actual dimensions of 1-1/2”thick x 3-1/2” wide
 
Roof Drains
A drain in a roof area that allows water to be drained off of the roof.
 
Roof Fasteners and Plates
Fasteners and Plates used to attach the underlayment or insulation, along with the Roof Sections to the structural roof deck.
 
Roof Sections
This can represent an entire roof area of many pre-manufactured sheets or each pre-manufactured sheet entered in the program.
 
Roof Sheets
A penetration in the membrane that allows air to breathe above and below the roofing membrane, while maintaining a watertight seal. Duro-Last requires Two Way Roof Vents to be installed (one) for every 1000 square foot of roof area.
 
Roof Steel
(Structural Steel Decking) There are several different styles of Structural Steel Decking. Most of them have a letter designation for the specific style. The more standard options are “A”, “B”, “F” and “N”. Most structural steel decking is at least 22 gauge steel or thicker.
 
Roof Vents (Two Way Vents)
A penetration in the membrane that allows air to breathe above and below the roofing membrane, while maintaining a watertight seal. Duro-Last requires Two Way Roof Vents to be installed (one) for every 1000 square foot of roof area.
 

S

Sales Tax
Taxes that are imposed on the purchases of the materials used for the roof bid.

Save
Saves the current item you are editing.
 
Save and Add
To "save and add" to your estimate the current information you have just entered.
 
Scissor or Articulating Arm Lift
A lift used to hoist personnel and smaller equipment or supplies to work on the outside edge of the roof or difficult to access locations.
 
Screws
A fastening device that is installed with a screw gun into wood, steel or concrete.
 
Scupper
A scupper is a through wall drain that is lined with a curb flashing that has a skirt on the inside and the outside of the wall. The skirt is the normal size. Then the A & B dimensions are the height and width of the opening. The C dimension is the depth or thickness of the wall from the inside to the outside of the wall where the additional skirt is located.
 
Sealants
These are products that create a seal, either by compression or application.
 
Section
Section A, B, etc.: All Roof Sections will be assigned a letter starting with the letter A and following alphabetically.
 
Select All
To select all data in an existing table of information so as to implement one choice for all data.
 
Services
A service that is provided to you at the job site by an outside source. The provider of the service is not actually helping do the work of completing the contract, but are assisting you in the performance of your work.
 
Sheet Metal Work
Roofing and Flashing related work that is performed with the use of formed metal or sheet metal. Sheet metal is formed for a variety of structural and flashing details.
 
Shingles
A roofing product used on steep sloped roofs.
 
Shipping
You must set up whatever shipping cost are appropriate for your area. We have set up the program to base shipping cost on the total dollar cost of Duro-Last materials or it can be based on square footage. We have a default list if you don’t have any idea; however, you are responsible to know your own shipping cost and to make appropriate entries.
 
Shipping Other
If any item of this job, other than Duro-Last, requires shipping cost, you must make an entry here.
 
Side
Side A, B, etc.: This refers to the letters that are placed beside a diagram of a Roof Section, Parapet or Curb, relating directly to information that has been entered or calculated.
 
Side Wall Vents
A penetration in the membrane that allows air to breathe above and below the roofing membrane, while maintaining a watertight seal. This vent is used where side wall venting is required.
 
Single Ply
  •  and Combinations
    When the top layer of roofing that you see on the roof is a single ply membrane you will want to choose the combination that best describes the existing conditions you have discovered by core sampling.
  • Ballasted
    A single ply with rock installed on top of membrane to hold roof in place.
  • Fully Adhered
    A single ply that is glued to insulation or the roof deck.
  • Mechanically Fastened (7' or 5' Centers)
    A single ply with screws or fasteners and plates or batten bars attaching the membrane to the structure at regular intervals across the roof.
Skirt
The horizontal portion of the parapet flashing at the base of the wall that extends out over the Roof Section membrane and over the Deck Tab.
 
Slip Sheets
The minimal underlayment options prior to installing the Duro-Last Roofing System. There are three options available in this estimating program. They are Polyethylene Film, Duro-Fold, and Ultra-Fold.
 
Snap Base
4”or 6” Snap Base or Two Piece Compression Metal: A galvanized canted steel base installed at the perimeter of the roof where the Duro-Last membrane can be extended up and over the top and nailed off in the face of the metal on the outside edge of the roof edge or parapet edge detail. It is available in a 4” or 6” tall face.
 
Snap Cover
4”or 6” Snap Cover: A painted finish cover that snaps over the outside face of the base metal and which gives a smooth finished appearance.
 
Spray Urethane and Combinations
When the top layer of roofing is a elastomeric coating over spray urethane insulation you will want to choose the combination that best describes the existing conditions you have discovered by core sampling.
 
100,000 Square Foot Discount
If an order is over 100,000 square feet, Duro-Last offers a 5% volume discount provided the following conditions are met:
  • Customer’s account is current
  • The project is billed on one invoice.
Standard Sheet Size Discount
If an order is over 50,000 square feet, there is a Standard Size Discount offered by Duro-Last, Inc., with the following conditions:
  • The size of the roofing project must be 50,000 square feet or more, installed on one job and invoiced on one invoice.
  • 80% or more of the roofing material is made in sections from the Standard Size List.
  • The balance of the materials and accessories will be invoiced according to the regular prices and terms.
  • The Dealer/Contractor has a zero balance.
  • The order is prepaid which will provide you with our normal 5% prepayment terms on the total order.
Standing Seam Steel
Structural Steel Roof Panels that are also the roofing system and where the seams are standing up above the flow of water and are usually folded together or clipped together to form a watertight seal.
 
Status
Existing condition; a condition that is subject to change. Therefore the Job Bid status might be pending, finished, submitted, sold, etc.
 
Steel Plates
A steel plate used with screws, purlin fasteners, nails, metal anchors and other devices to attach parapet sections to parapet walls. It can be used in some other applications also, such as the base of a parapet wall, with Duro-Last approval.
 
Strainers
Strainers used on roof drains to keep out debris, leaves and dirt from clogging the roof drain outlet.
 
Strip Mastic
This product is a self adhering sealant that come is a paper protected roll, with multiple rolls in a bucket of sealant. There are 350 lineal feet of strip mastic sealant in a bucket. This sealant is used behind compression bars to create a seal. Compression bars include, term bar and fascia bar.
 
Structural Metal
There are many styles of steel decking: however, structural steel decking is usually 22 gauge or thicker, unless it is over lay with Lightweight Concrete.
 
Structural Roof Deck Materials
These are materials that are needed to repair an existing roof deck, if necessary during the re-roofing process.
  • Roof Steel
  • Plywood
  • Tectum:
  • Metro-Mix
  • Standing Seam Steel
Style
A distinctive form or a way of doing something.
 
Sub-Contractors
Contractors you hire to help fulfill tasks outside your area of expertise or who can help you fulfill a larger contract which you cannot fulfill with your own company resources.
 
Subtotal
This is a total of part of a list and on the third column of the Review Screen it is everything in that column prior to mark up.
 

T

Tabs
Whenever two pieces of Duro-Last membrane are welded together, in the factory, for later installation on a roof, there is a 4” wide “tab” of additional membrane left on the underside of the weld. This material or tab is used as the attachment point where fasteners are used to attach the membrane to the roof deck or to the parapet wall.

Taxes
You must set up whatever local, state or federal taxes apply in your area.
 
Tab Button (Parapets)
This button allows you to over ride the default settings for wall tab spacing. This would only be important if you were using the data entered in this estimate to order the parapets from.
 
Tab Space
The spacing between welds where “tabs” are left behind the membrane. Usually you will find the following spacing options: 28”, 60”, and 120”
 
Tear Off
The removal of the existing roofing system or systems along with underlayment and insulation in preparation for a new roofing system installation.
 
Tectum
This also referred to as cement wood fiber panels. These panels are composed of treated wood fibers that are bonded together with Portland Cement or other binder and compressed into flat panels. The panels provide acoustical and thermal insulation.
 
Termination
A termination is where the roofing or flashing material stops and a waterproof seal must be created between the roofing membrane and any other surface. Specifically we are referring to terminations for Roof Sections, Parapets and Curbs.
  • Termination Bar
  • 1-3/4” Fascia Bar
  • 4” Fascia Bar
  • Gravel Stop
  • Drip Edge
  • 4” Snap Cover
  • 6” Snap Cover
  • Counter Flashing
Termination Bar
T-Bar: A 1-3/4” tall x 10’ long vinyl bar with pre-punched holes in it every six inches. It is used to create a compression seal between the Duro-Last roofing or flashing material and other objects. A sealant is used between the roofing membrane and or flashing material and other objects, such as parapet walls, curbs, etc. The bar is fastened into the wall or curb with screws or other fasteners and are drawn tight to create the compression seal. Additional sealant is placed on the high edge of the termination bar.
 
Termination Fasteners
Fasteners used to attach Duro-Last termination options to all edge details.
 
Thickness
The total thickness of all roofing to be removed and verified by core cuts.
 
Top of Wall
The width of the top of the parapet wall.
 
Top of Parapet Wall Blocking
Wood that is installed along the outside edge of the top of the parapet wall where Duro-Last termination details are going to be performed.
 

U

Underlayment
Any product installed prior to the Roof Sections, acting as a separator between the new roofing and the existing roofing, structural deck or other material.

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V

Vents - Two Way Roof Vents
A penetration in the membrane that allows air to breathe above and below the roofing membrane, while maintaining a watertight seal. Duro-Last requires Two Way Roof Vents to be installed (one) for every 1000 square foot of roof area.

 
Vertical Dimension
The vertical portion of the parapet wall that needs to be covered by “parapet flashing material”.
 
Volume Discount
If an order is over 100,000 square feet, Duro-Last offers a 5% volume discount provided the following conditions are met:
  • Customer’s account is current
  • The project is billed on one invoice.
Vulkem
This product come in a caulking tube and can be used in many applications, including drain boots, term bars, fascia bars, pipe stacks, etc.
 

W

Walk Pads
A non-skid, maintenance free walkway pad. It is welded in place on the roof in the areas of high traffic or where additional protection is required.

Wall Tab
The tabs on the parapet flashing that are fastened into the parapet wall.
 
Wall Type
The material that the parapet wall is constructed with and which the parapet flashing material will have to be installed over.
  • Wood or Metal
  • Brick or Concrete
WxL
Width times length of the material.
 
Wood
A rigid fibrous product that comes from trees.
 
Wood Blocking
Wood Blocking is installed at the perimeter of the Roof Sections where a termination must be used. Wood Blocking can also be installed on the top of the parapet wall for the installation of a termination in that location.
 
Width
One dimension of a single piece of material.
 

X

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Y

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Z

Z Flashing
A “Z” flashing is in the shape of the letter “Z” with the both corners at right angles. It is used to divert the flow of water coming down a vertical surface out and over a potentially vulnerable area.

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