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Unrivaled Roof Rock Vacuums | Industrial Vacuum Equipment ...

The Hurricane 755 rock vacuum has 225 horsepower that can pull up to 27" of mercury at longer distances. Both units can vacuum pea gravel or 2-3" river rock (ballast) up to 1,000 feet. In addition to roofs, they function perfectly as landscape rock removal equipment. All Hurricane™ rock vacuums automatically discharge vacuumed material into ...

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Built Up Roof Materail Removal: Gravel | Ballast | Soil ...

Ballasted Roof Rock Removal. A ballasted roof uses larger and heavier stone, compared to a built-up roof, and is laid over the roof membrane. The stone, gravel, or rocks are used as a weighted barrier for the materials below. The weight of the gravel or stone is helpful for distribution purposes.

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A Tar & Gravel Roof Guide for Beginners (Updated for 2021)

Ballast Tar & Gravel Roofing. On the other hand, ballast roofing might be the right choice for your commercial property if you live somewhere with a ready source of ballast (rocks/gravel of the appropriate size) and you prefer the aesthetic look and texture of the larger stones. Paving stones can also be added to create walkways, which add ...

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Department of Public Works & Engineering Building Code ...

Ballasted roofs with a minimum stone ballast of 17 lb/ft2 or 23 lb/ft2 pavers1½ inches nominal diameter . 2. Vegetated roof systems that contain a minimum thickness of 2.5 in. of growing medium and covering a minimum of 75% of the roof area with durable plantings . 3.

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S:FLEX - PV Mounting Systems - Ballasted

In this case, a particularly high quantity of ballast can be flexibly distributed over the rails. For roofs with a lower load-bearing capacity and roof superstructures on which longer rails cannot easily be laid, the triangles are attached directly to ballast blocks/stone slabs.

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Ballasted Roof System | Ballasted EPDM

Ballast stone can crush the underlying insulation, creating weak spots in the roof membrane. Over time, the stones move around, creating "Bald spots" where the system isn't held down at all. In windy areas, ballast stone can actually blow off the roof, creating projectiles below. Stone ballast is no longer allowed by many building codes.

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Roof Ballast Stone Removal Services in Fort Worth and ...

Call Roofworx today at 817-920-5974 for roof ballast stone removal in Fort Worth, TX! Ballast Stone Removal in Texas. Whether you are replacing your current single-ply membrane roof, or if you are looking to install a new roof entirely, you will need to have the ballast stone removed from your roof's surface.

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Roofing: Ballast Can Do It All | Buildings

To further clarify the Cool Ballasted roof system, the submittal states that the roof system to be installed to the national standard ANSI/SPRI RP-4, "Wind Design Standard for Ballasted Single-Ply Roofing Systems." This standard defines the stone and paver types that can be used with single-ply systems and the minimum weights required to ...

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Southwest Boulder & Stone 30 cu. ft. Golden White Ice ...

27.50 cu. ft. 3/16 in. 2200 lbs. White Gravel Margo Garden Products Gravel collection selects Margo Garden Products Gravel collection selects only high quality all-natural stone from regions surrounding the Southwest Pacific. Use landscape rock and gravel to control for water erosion, decoration around trees and flower beds, topcoat material for a ballast roof system and/or …

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Roof Ballast Rock Removal Services | Seal Roofing

Seal Roofing offers roof vacuuming services, either as a free service for any roof repair job or as an individual service if you need to replace your stone or gravel for any reason. You can expect a fast, efficient ballast rock removal from our experienced team so …

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Short-term solutions | Professional Roofing magazine

Ballast can be aggregate, concrete pavers or cementitious-coated extruded polystyrene panels. Scour is displacement of a few or several pieces of ballast where the membrane is left exposed but the displaced ballast is not blown off the roof. Ballast blow-off is similar to scour except some ballast is blown off the roof.

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Calculate #4 Limestone Ballast | cubic yards / Tons

Calculate #4 Limestone Ballast. Type in inches and feet of your project and calculate the estimated amount of Gravel Stone in cubic yards, cubic feet and Tons, that your need for your project. The Density of #4 Limestone Ballast: 2,410 lb/yd³ or 1.21 t/yd³ or 0.8 yd³/t. A:

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Stone Ballast Removal - TPO Roofing

Roof ballast removal is completed with a giant vacuuming truck and custom designed piping that allows the stone to be sucked right off the roof and into the truck. The stone is either left on site if the customer wants to keep it, or disposed off site. At the end of the day, the roof looks dramatically different (and dirtier) without ballast.

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Apparatus and method for removing ballast stones from a roof

A stone ballast removal machine is typically utilized for picking up the ballast stones directly from roof 15. A gravel cart is used to carry the ballast stones to conveyor system 10 of the preferred embodiment. Roof ballast stones are typically in …

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Global Roofing Group - What is a Ballasted Roof System?

The stones used in ballasted roofing are generally 1.5 - 2.5 inches in diameter and applied in a thicker layer. The stones are therefore much more substantial and hold up well under wind tunnel tests. In many cases, ballasted roofing also uses pavers in places of heavy traffic or even over the entire surface of the roof.

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Weight of Roofing Materials: Complete List • Roof Online

EPDM Roof Membrane 60-mil, Ballasted (Membrane and Stone Ballast Only) 10.75 – 20 lbs: 1075 – 2000 lbs: 52.5 – 97.65 kg: Firestone Building Products: EPDM Roof Membrane 60-mil, Fully-Adhered (Membrane Only) 0.47 lbs: 47 lbs: 2.29 kg: Firestone Building Products: EPDM Roof Membrane 90-mil, Fully-Adhered (Membrane Only) 0.56 lbs: 56 lbs: 2 ...

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Ballast Stone - Ordovician Dolomitic Limestone - Pattison ...

The Perfect Ballast Stone. Ballast Stone is also known as railroad ballast, walking ballast, mainline ballast, shortline ballast, yard ballast, AREMA ballast, AREMA 4a and AREMA 5 ballast. This material is used primarily for railroads as mainline ballast or cross walk material. Because the purpose of Ballast Stone is to improve drainage.

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Tech Solutions 508 - Green Roofs, Garden Roofs, Monolithic ...

in effective ballast because of water's buoyancy effect on the submerged stone ballast. The recommended ballast takes this Caution: The additional load from heavy ballast and/or deep water retention over the roof structure needs to be taken into account at the structural design stage. Water retention roofs

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Ballasted Design Guide - Commercial Roofing and ...

The Ballasted Roof System is fabricated with large sheets of Lexcan membrane loose laid over rigid board roofing insul-ation. Adjoining sheets are seamed together and then ballasted with stone ballast or concrete pavers to hold the membrane and insulation in place. Special flashing accessories complete

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Design of Loose-Laid Gravel Stone Ballasted Roofs ...

Roof areas subjected to different wind action require varying amounts of ballast. The amount of ballast varies from 50 to 65 kg/m² (10 to 13 psf) in conventionally loose-laid, gravel stone ballasted single-ply assemblies. Ballast is assumed to be round, 38 mm (1.5 in.) or 64 mm (2.4 in.) smooth stone consisting of ballast gradation sizes #2 ...

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Flow-Thru Gravel Stops & Drain Bars | ATAS International, Inc.

Drain Bar - Back. Flow-Thru Gravel Stops and Drain Bars provide a method to terminate the roof, and allow water to flow over the edge, while retaining gravel or stone ballast on the roof. Most commonly used at a gutter or low roof transitions, Flow-Thru Gravel Stop and Drain Bar are furnished in 12'-0" lengths of mill or pre-finished ...

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Single-Ply System: EPDM (Thermoset) Roofing Membranes ...

Ballasted System. Provides a simple, economical design which is compatible with most insulation and provides coverage of large roof areas. The panels are loose-laid over the insulation and held in place by smooth, river-washed stone or concrete pavers

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KIRBYS SAND & GRAVEL - Gravel

Unwashed Landscaping, Decorative, Drainage and Roof Ballast Stone. Click here to edit text #2 Round Blue Gravel Approx.1 1/2"-3" Excavated from our pond with a natural blue tint with brown and natural color hues. Medium Mixed Color Decorative Rock. Approx. 2 1/2" - 8" Unwashed Rock. Large Mixed Color Decorative Rock.

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The Purpose of Stone or Gravel Ballast ... - Roberts Roofing

The Purpose of Stone or Gravel Ballast on a Flat Commercial or Industrial Roof It is not unusual to find a gravel top coat on commercial or industrial roofing systems. Though primarily confined to built-up asphalt roofing …

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ANSI/SPRI RP-4 2013 Wind Design Standard For Ballasted ...

2.1 Ballast In roofing, ballast comes in the form of large stones, (typically river bottom stone ¾ in. to 1½ in. diameter, size No. 4 per ASTM D448 "Standard Sizes of Coarse Aggregate" or ASTMD7655/D7655M-12 "Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems") or

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A1Grit.com

White Ballast. A1-Grit Ballast is a natural, smooth, water-worn and screened large gravel used for many applications. White Ballast can range in size from 2 1/2 - 3/4 inches and can be made to meet various ASTM standards. Our roofing Ballast is commonly installed over membrane and single-ply systems at 1000-1500 pounds per square.

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Chapter 15: Roof Assemblies and Rooftop Structures, NYC ...

In roofing, crushed stone, crushed slag or water-worn gravel used for surfacing for roof coverings. BALLAST. In roofing, ballast comes in the form of large stones or paver systems or light-weight interlocking paver systems and is used to provide uplift resistance to components of the roof assembly systems that are not adhered or mechanically ...

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Ballasted Roofs A New Look at an Old System

In a ballasted roof, the stones are much larger - at least an inch in diameter - and applied much more heavily. In fact, the weight of the stone ballast is what holds the roof components in place. The weight can vary from 10 pounds per square foot (the minimum allowed by code) to 25 pounds or more. The most common ballasted assembly was a loose ...

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Velocity Roof Vac Services Chicago Roof Rock Ballast ...

We can offer very competitive pricing and great expert work by our trained professionals. Thank you for choosing Velocity Roof Vac Services, Inc. for your gr...

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SINGLE-PLY MEMBRANE Metal Roof Deck Ballasted, stone

Overview. Steel deck with loosely laid single-ply membrane, ballasted with stone, depending on uplift requirement with/without cover board or slip sheet, XPS insulation over gypsum board thermal barrier and the metal roof deck. Get all the construction documentation you'll …

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Ballasted Roof Systems: Costly Issues You Should …

The stone ballast on a ballasted roof system is the only thing holding the roof system in place. The insulation is loose laid onto the decking. There are no fasteners installed at all (3 and 4). Next the membrane is rolled over the insulation (2). This again is loose so there are no fasteners or glues used to hold it down.

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