ballast stone for roof

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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Protected Membrane Roofing Ballast Options - American ...

stone ballast Typically requires crushed, graded stone placed over a stone filter sheet, rolled out over the insulation. In the field of the roof, a minimum of 10 lbs./s.f. ballast is required, with 20 lbs./s.f. needed at perimeters and at large penetrations.

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Gravel Ballasted Roofs - Sika

Gravel ballasted roofs with Sikaplan® or Sarnafil® single ply membranes are conventionally installed. The single ply membrane and other roof components, including thermal insulation, are loose laid. The buildup is ballasted with a gravel layer of at least 50 mm and 80 kg/m 2. The gravel ballast secures the roof waterproofing against wind ...

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Ballasted Roof Systems: Costly Issues You Should Understand

Aug 05, 2015  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

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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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Guide and Considerations for Ballasted Roofing

Aggregate ballast blown off the roof can break windows and skylights and damage other building surfaces. For this reason, installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-prone areas, selection of a paver ballast assembly is

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

Jan 02, 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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KIRBYS SAND GRAVEL - Gravel

PRODUCTS MAY RUN LARGER THAN DESCRIPTION. Please Visit us to view actual products before placing an order! #4 Blue Round Gravel. Approx. 3/4"-1 1/2". Excavated from our pond with a natural blue tint mixed with brown and natural color hues. #2 Round Brown Gravel Approx.1 1/2"-3". Unwashed Landscaping, Decorative, Drainage and Roof Ballast Stone.

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Roof Ballast Pavers - Nitterhouse Masonry

Roof Ballast Pavers for Your Roof Protection System. Protect and beautify your roof with these attractive and functional roof ballast pavers. Our roofing pavers are available in diamond tread pattern and architectural shot blast finish to suit the needs of your building. You can use these roofing pavers as walkway pads, for paving stones on pedestals, as ballast paving stones

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Ballasted System - Firestone RubberGard EPDM

Firestone EPDM Ballasted System Application. The Firestone EPDM Ballasted System is an economical EPDM Roofing System, suitable for a wide variety of buildings.It can be applied on any building that can accommodate the extra load of the ballast and where the roof

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Guide and Considerations for Ballasted Roofing

Aggregate ballast blown off the roof can break windows and skylights and damage other building surfaces. For this reason, installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-prone areas, selection of a paver ballast assembly is

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Roofing: Ballast Can Do It All Buildings

Aug 13, 2008  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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A Tar Gravel Roof Guide for Beginners (Updated for 2021)

Jan 02, 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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Why Ballasted Roofs Here to Stay - Geissler Roofing

Nov 02, 2015  Ballasted roofs, their stone version at least, have been around for a few decades now (since the 70s). They are similar to built-up roofs, but with a few major distinctions, such as using much larger stones (1 inch in diameter at least) and this stone is applied in such a way that the “ballast” is basically the only thing holding the components in place, but it does so quite well.

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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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Schofield StoneStone Wholesalers Quarriers

Blue Stone Flagstone. Blue Stone Irregular Flagstone. Blue Stone Pattern Flagstone. Irregular Flagstone. Pattern Imported Flagstone. ... #2 Roofing Ballast - No longer meets Spec ASTM D 448 #3 Roofing Ballast - ASTM D 448 #4 Roofing Ballast - ASTM D 448. DELAWARE BLEND 3/8. PEARL PEBBLE 1/2. Roofing Spar.

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What is the SRI value of light gravel used on roof buildup ...

A ballasted roofing system normally consists of river-rock ballast over a membrane, rigid insulation, and a metal roof deck. Though the solar reflectance is lower than a traditional cool roof, the river rock has high thermal emittance properties and the mass of the ballast acts as a heat sink, resulting in, according to some, a similar overall ...

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Ballasted Roof Dead Load - Structural engineering general ...

A "ballasted roof" generally refers to a single ply roof membrane that is held in place against wind uplift by loading the surface with either stone ballast or pavers. The membrane for such systems is usually not attached to the substrate, although some systems do have supplementary perimeter attachment. Since the ballast is the primary ...

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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 need, in a single click:

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Ballasted Roofs Meet Cool-Roof Criteria Architect Magazine

May 13, 2009  Stone sizes were a nominal 1 1/2-inch (38-mm) diameter. One roof section had 10 pounds per square foot (49 kg/m2) of stone, the minimum allowed for ballast. Another roof section had 17 pounds per square foot (83 kg/m2) of ballast, and the third roof section featured 24 pounds per square foot (117 kg/m2).

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JM EPDM PROTECTIVE STONE MAT

Ballasted • The JM EPDM Protective Stone Mat is typically installed between the overlying ballast or pavers and the JM EPDM roofing membrane. • Refer to JM EPDM applicator guides or detail drawings for instructions. Packaging and Dimensions Roll Size 15' wide x 300' long (4.57 m x 91.44 m) Material Weight 7.0 oz/yd2 (237.34 g/m2) (nom)

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Advice on Ballasted stone roof - See my comment : Roofing

Any other options for moving material on a ballasted stone roof? Thanks. 1. Reply. Share. Report Save. View Entire Discussion (1 Comments) More posts from the Roofing community. 55. Posted by 4 days ago. So here's that roof that took 2 yr, I just happened to be nearby. 55. 32 comments. share. save. hide.

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Roof Ballast Pavers - Nitterhouse Masonry

Roof Ballast Pavers for Your Roof Protection System. Protect and beautify your roof with these attractive and functional roof ballast pavers. Our roofing pavers are available in diamond tread pattern and architectural shot blast finish to suit the needs of your building. You can use these roofing pavers as walkway pads, for paving stones on pedestals, as ballast paving stones

More

Guide and Considerations for Ballasted Roofing

Aggregate ballast blown off the roof can break windows and skylights and damage other building surfaces. For this reason, installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-prone areas, selection of a paver ballast assembly is

More

Why Ballasted Roofs Here to Stay - Geissler Roofing

Nov 02, 2015  Ballasted roofs, their stone version at least, have been around for a few decades now (since the 70s). They are similar to built-up roofs, but with a few major distinctions, such as using much larger stones (1 inch in diameter at least) and this stone is applied in such a way that the “ballast” is basically the only thing holding the components in place, but it does so quite well.

More

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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Product Data Sheet - files.mutualcdn

BALLAST Stone pebbles for borders and ballast. 01 20-40mm WASHED RIVERSTONE / BALLAST Bitumen Waterproo˜ng ... the roof (rooflights, windows) or vertical elements. On large roofs a one metre wide pebble border should be included at 40 metre intervals across the roof. To help maintain the vegetation barrier a retention angle should be included

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Ballasted Roofs Meet Cool-Roof Criteria Architect Magazine

May 13, 2009  Stone sizes were a nominal 1 1/2-inch (38-mm) diameter. One roof section had 10 pounds per square foot (49 kg/m2) of stone, the minimum allowed for ballast. Another roof section had 17 pounds per square foot (83 kg/m2) of ballast, and the third roof section featured 24 pounds per square foot (117 kg/m2).

More

Advice on Ballasted stone roof - See my comment : Roofing

Any other options for moving material on a ballasted stone roof? Thanks. 1. Reply. Share. Report Save. View Entire Discussion (1 Comments) More posts from the Roofing community. 55. Posted by 4 days ago. So here's that roof that took 2 yr, I just happened to be nearby. 55. 32 comments. share. save. hide.

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JM EPDM PROTECTIVE STONE MAT

Ballasted • The JM EPDM Protective Stone Mat is typically installed between the overlying ballast or pavers and the JM EPDM roofing membrane. • Refer to JM EPDM applicator guides or detail drawings for instructions. Packaging and Dimensions Roll Size 15' wide x 300' long (4.57 m x 91.44 m) Material Weight 7.0 oz/yd2 (237.34 g/m2) (nom)

More

What is the SRI value of light gravel used on roof buildup ...

A ballasted roofing system normally consists of river-rock ballast over a membrane, rigid insulation, and a metal roof deck. Though the solar reflectance is lower than a traditional cool roof, the river rock has high thermal emittance properties and the mass of the ballast acts as a heat sink, resulting in, according to some, a similar overall ...

More

Ballasted Roof Dead Load - Structural engineering general ...

A "ballasted roof" generally refers to a single ply roof membrane that is held in place against wind uplift by loading the surface with either stone ballast or pavers. The membrane for such systems is usually not attached to the substrate, although some systems do have supplementary perimeter attachment. Since the ballast is the primary ...

More

CHAPTER 15 ROOF ASSEMBLIES AND ROOFTOP STRUCTURES

roof covering over a prepared existing roof covering without removing the existing roof covering. ROOF REPAIR. Reconstruction or renewal of any part of an existing roof for the purposes of its maintenance. ROOFREPLACEMENT.Theprocessofremovingtheexist-ing roof covering, repairing anydamaged substrateand install-ing a new roof covering. ROOF SECTION.

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PMR Assembly: Blue Roofs - American Hydrotech, Inc.

A Blue Roof can be created on a typical Hydrotech PMR (Protected Membrane Roof Assembly) utilizing standard loose stone for ballast. It is the simplest blue roof that can be created. Using standard ballast stone, the water in the blue roof is stored within the void spaces of the stone and to the required level above the ballast.

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Ballasted Roof System FiberTite

Ballasted Roof Systems: A Compelling Option for Increased UV and Fire Resistance. An alternative to adhered and mechanically attached systems, FiberTite can also be installed in typical ballast configurations using conventional stone or paver ballast to secure the FiberTite membrane to the roof.Installed over loose laid FiberTite membrane, ballast roof systems reduce membrane exposure

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Quick Reference: Weight of Roofing Materials — 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: 2.73 kg ...

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Guide and Considerations for Ballasted Roofing

Aggregate ballast blown off the roof can break windows and skylights and damage other building surfaces. For this reason, installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-prone areas, selection of a paver ballast assembly is

More

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

More

Ballasted Roof Systems: Costly Issues You Should Understand

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

More

Advice on Ballasted stone roof - See my comment : Roofing

Any other options for moving material on a ballasted stone roof? Thanks. 1. Reply. Share. Report Save. View Entire Discussion (1 Comments) More posts from the Roofing community. 55. Posted by 4 days ago. So here's that roof that took 2 yr, I just happened to be nearby. 55. 32 comments. share. save. hide.

More

Ballasted Roofs Meet Cool-Roof Criteria Architect Magazine

May 13, 2009  Stone sizes were a nominal 1 1/2-inch (38-mm) diameter. One roof section had 10 pounds per square foot (49 kg/m2) of stone, the minimum allowed for ballast. Another roof section had 17 pounds per square foot (83 kg/m2) of ballast, and the third roof section featured 24 pounds per square foot (117 kg/m2).

More

Ballasted - Carlisle SynTec

Its fast and easy installation makes the ballasted roof system extremely economical for large, open rooftops. Popular for large-scale retail stores and warehouses, ballasted systems feature a loose-laid membrane held in place by stone or pavers. The ballast helps to shield the membrane from inclement weather and extend the life of the roof.

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Product Data Sheet - files.mutualcdn

BALLAST Stone pebbles for borders and ballast. 01 20-40mm WASHED RIVERSTONE / BALLAST Bitumen Waterproo˜ng ... the roof (rooflights, windows) or vertical elements. On large roofs a one metre wide pebble border should be included at 40 metre intervals across the roof. To help maintain the vegetation barrier a retention angle should be included

More

PMR Assembly: Blue Roofs - American Hydrotech, Inc.

A Blue Roof can be created on a typical Hydrotech PMR (Protected Membrane Roof Assembly) utilizing standard loose stone for ballast. It is the simplest blue roof that can be created. Using standard ballast stone, the water in the blue roof is stored within the void spaces of the stone and to the required level above the ballast.

More

Chapter 15: Roof Assemblies and Rooftop Structures, 2015 ...

Aggregate used as surfacing for roof coverings and aggregate, gravel or stone used as ballast shall not be used on the roof of a building located in a hurricane-prone region as defined in Section 202, or on any other building with a mean roof height exceeding that permitted by Table 1504.8 based on the exposure category and basic wind speed at ...

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CHAPTER 15 ROOF ASSEMBLIES AND ROOFTOP STRUCTURES

roof covering over a prepared existing roof covering without removing the existing roof covering. ROOF REPAIR. Reconstruction or renewal of any part of an existing roof for the purposes of its maintenance. ROOFREPLACEMENT.Theprocessofremovingtheexist-ing roof covering, repairing anydamaged substrateand install-ing a new roof covering. ROOF SECTION.

More

JM EPDM Protective Stone Mat Johns Manville

JM EPDM Protective Stone Mat is a nominal 7.0 oz/yd2 (237.34 g/m2) UV-resistant, polypropylene, needle-punched fabric. Use the JM EPDM Protective Stone Mat as a slipsheet between the membrane and the ballast or pavers.

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Ballasted Roofing Systems Installation Performance ...

Ballasted. Durable. Cost-effective. Sustainable. When looking for a long-lasting roofing solution, a ballasted roof system (EDPM membrane weighted down with stone) can strike the perfect balance of durability, cost, and sustainability. The ballast (river stone or pavers) shield the membrane from inclement weather and foreign objects to help ...

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A New Look at Ballasted Roofs WATERPROOF! Magazine

Jan 13, 2010  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 the only item holding 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.

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Quick Reference: Weight of Roofing Materials — 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: 2.73 kg ...

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