ballast stone for roof
Problems with Ballasted Roof Systems: 6 Main Challenges …
Ballast stones in a roof system can be susceptible to movement during strong winds, posing a risk of damage and even dangerous flying projectiles. To mitigate this challenge, it is essential to secure the ballast properly by incorporating wind-resistant measures during installation. This can include using adhesives or fasteners to anchor the ...
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Ballasted Roof Dead Load
For roofing terminology, this is not referred to as a "ballasted" roof since the built-up roof is bonded to the substrate. 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.
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Ballasted EPDM Roofs: Complete Guide To This EPDM …
Ballasted EPDM roofs are a type of flat roofing system that utilizes ballast materials to secure the underlying structure. The heavy materials, such as gravel, loose stones, or pavers, hold down lighter layers of roofing material and protect the highly durable EPDM membranes. Though ballast is often used on ships to improve stability, this ...
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Ballasted Roofs and SRI Values
The two main types of ballast used for roof assemblies are smooth, river-washed stone and concrete roof pavers. We can still design a reflective ballasted roof using certain roof pavers, such as Hanover Pavers' highly reflective Glacier White, which has an SRI of 84. Ballasted roof pavers aren't just reflective; they can also be reused in ...
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The original sustainable roof | Professional Roofing magazine
A ballasted EPDM roof system has its components held in place by river-washed stones or pavers. Ballasted roofs are loose-laid, meaning roofing materials, including the insulation and roof membrane, are not fastened to one another or to the roof deck. ... In addition to protecting a roof from weather, ballast acts as a shield against …
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Global Roofing Group
Ballasted roofs are durable and long lasting. The roof tends to flex a little better under the expansion and contraction of heat and cold, making it a bit more durable. Stones or concrete pavers protect the waterproofing layer …
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Ballasted System Assembly
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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What is a Ballast Roof? Insight to Components …
A ballast roof system utilizes gravity and weighted materials like gravel, stone ballast, or concrete pavers to secure a loose-laid membrane, offering a durable and efficient roofing solution without the …
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Ballast Pavers
Standard Ballast Paver: 1 13/16" thick, 23 lbs/sf; Lightweight Ballast Paver: 1 1/4" thick, 15 lbs/sf; Wide range of Standard Ballast Paver sizes available [Paver Size Chart]; Stocked in Natural color with Diamond finish [View Color/Finish]; Diamond is a ballast paver finish and is not recommended for aesthetic projects
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What Is A Ballasted Roof?
A ballasted roof is a system in which the waterproofing membrane is loose laid over the roof deck and held in place by a layer of ballast, usually stones, gravel (sometimes called aggregate), or concrete pavers. The waterproofing layer is usually a single-ply roofing membrane like EPDM, PVC, or TPO.
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Ballast Can Do It All
It can perform well in high winds if it is adequately embedded into the asphalt matrix, or is on a roof with a high parapet. Built-up roofs are designed to be fully adhered to the underlying roof matrix, either the roof deck or insulation that is above the roof deck. The stone used for (single-ply) ballast has been sized using ASTM D448.
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Roof Ballast Essentials: Types, Installation
The primary materials used for roof ballast include gravel or stone, concrete pavers, and ballast pavers, each with unique benefits. The chosen ballast depends on several factors including the building's …
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EPDM Roofing: What It Is, Pros, Cons, Issues & More
Ballasted EPDM roofing systems use the weight of river-washed stone (no sharp edges) or concrete pavers to hold the roof system in place. The insulation and the roof membrane are loose-laid over the roof deck, and the ballast is installed on top of the EPDM membrane. Ballast stone and concrete pavers at the corner of a ballasted epdm …
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Why Put Gravel on a Flat Roof
Because the ballast stones are " loose-laid, " and not embedded into a layer of tar (asphalt), the gravel is easy to move when conducting repairs or maintenance. We …
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#4 Roofing Ballast
#4 Roofing Ballast - ASTM D 448 . Color: Tan & Grey. Details: ASTM D 448 - Naturally round, grey and tan granite. Used in roofing applications. Sizes: 3/4"x1-1/4" (Size #4) ..., Harford, PA 18823 | 877-488-6257 Schofield Stone of TN 1566 Old York Hwy, Dunlap, TN 37327 | 423-949-7332 ©2024 Outdoor Living Supply, LLC • Schofield Stone is an ...
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Ballasted Roofs Meet Cool-Roof Criteria
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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Guide and Considerations for Ballasted Roofing
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 Carole M. Ceja Ethan T. Rattray ... installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-
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RoofStone Integrated Paver for Green Roofs
RoofStone follows the roof contour and can be used to create walkways, patios, and landing areas on most non-ADA compliant roofs. RoofStone can also be used on roofs that must be ADA-compliant with slope up to 1:48, which equals 2.08% or 1.19 degrees. This is ¼ inch per 1 foot, which is the norm (minimum) roof slope for drainage.
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A New Look at Ballasted Roofs | WATERPROOF!
Energy Efficiency: Ballasted roofs reduce heating and cooling loads. A system with a weight of 17 pounds per sq. ft. saves as much energy as an EnergyStar-rated reflective roof. Fireproof: Stone …
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EVERGUARD TPO/PVC BALLASTED
Technical Services at 1-800-ROOF-411 (1-800-766-3411). Who is GAF? Founded in 1886, GAF has grown to become North America's largest manufacturer of commercial and residential roofing.* Professional roofing contractors have long preferred the rugged, dependable performance that only a GAF roof can offer, and have made it the
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What is a Ballasted Roof System: An Overview
If you are looking for a roofing system that is easy to install and cost-effective, a ballasted roof system might be the right choice for you. A ballasted roof system is a type of roofing that uses a loose-laid membrane held in place by ballast, which is usually gravel, pavers, or other heavy materials. The ballast provides the weigh…
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Ballasted Roof Systems: Costly Issues You …
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 …
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About #4 Limestone Ballast
About #4 Limestone Ballast #4 Limestone Ballast Stone is a crushed angular Limestone aggregate. Sizes of #4 Stone range from 2" to 4". Common applications:-Driveway Gravel (special build driveways to support heavy vehicles/items like boats or dump trucks, for example, on muddy roads - although for normal driveways we recommend the #57 size …
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Cooler Than You Think: Ballasted Roofing Systems
The results of the Oak Ridge study were surprising to many. When completed, the study found that the surface temperature of the black EPDM membrane underneath ballast material (both river-washed stone and pavers) stayed in the 90-103 degrees Fahrenheit range, comparable to the temperatures recorded for highly reflective cool …
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Ballasted Roof Maintenance: Your 5-Step Guide to Success
Common ballast options include gravel, stones, or pavers. Choose ballast materials that are durable, weather-resistant, and appropriate for your specific roof system. See to it that the size and weight of the ballast meet the manufacturer's recommendations to provide adequate stability and weight distribution.
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Roof Process: Ballasted Installation
Ballast stone traps a lot of dirt, making patching difficult. Ballast stone fractures and gets sharper over time, which can puncture the membrane. 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.
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Ballasted Roofs A New Look at an Old System
Energy Efficiency: Ballasted roofs reduce heating and cooling loads. A system with a weight of 17 pounds per square foot saves as much energy as an …
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Design of Loose-Laid Gravel Stone Ballasted Roofs
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 and #4, as specified in American Society for Testing and Materials (ASTM) D448.
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All you need to know about: Inverted roof ballast
The two most commonly specified ballast roof coverings are gravel and paving slabs. A potential alternative to these is screed, while a green roof covering can also be used as ballast if it is of sufficient weight. ... • Cast stone or mineral slabs at least 40mm thick. • A sand cement screed at least 30mm thick. Despite being listed in the ...
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Ballasted roof: What it is? | Summit Construction …
The roof ballast thickness makes it extremely durable and gives it longevity. This kind of roof is known by architects for its exceptional durability and ability to withstand extreme weather conditions. The …
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