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.

The Features. BUR's and Ballast Roofing Systems (BRS's) are topped with rocks. But the former uses a very thin layer of crushed stone or pea gravel that is not larger than 1/4th inch in diameter. This is partially-embedded into a topcoat of asphalt in order that it be protected from the sun's UV rays. Contrastingly, some ballasted systems ...

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 …

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).

Roof ballast aggregate . As an alternative to gravel and ballast stones, Laterlite Expanded Clay can be applied loose, both in its special hydrophobic Plus version and in the standard version, as lightweight permeable ballasting, and protection layers on top of waterproofing and insulation. It reduces up to 85% of the dead loads compared to ...

2. Patching. Patching a ballasted roof system can be challenging due to the accumulation of dirt and debris within the ballast stones. To effectively patch a ballasted roof, you need to first clean the area thoroughly to remove any contaminants that might hinder the adhesion of patching materials.

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.

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.

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. A contractor will strategically lay …

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 ...

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 …

The type of membrane doesn't matter — it can be EPDM, PVC, or TPO under a ballast. Stones In a Ballasted Roof. What's holding that membrane in place is a field of rocks that are typically one and a half inch in size. For a ballasted roof with a higher wind uplift rating, the rocks might reach two and a half inches. Kintop says for a ...

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 …

Calculate Ballast Rock. Type in inches and feet of your project and calculate the estimated amount of Recycled Materials in cubic yards, cubic feet and Tons, that your need for your project. The Density of Ballast Rock: 2,410 lb/yd³ or …

#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. Roofing Spar. AFFILIATES. KEEP IN TOUCH. HOME | ..., Harford, PA 18823 | 877-488-6257 Schofield Stone of TN 1566 Old York Hwy, Dunlap, TN 37327 | 423-949-7332 ©2024 Outdoor …

Whether it's a gravel, concrete, or stone ballast roof– this type of roof can be built during any season. Unlike some other roofing systems that require specific temperatures and weather conditions for …

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 …

According to Brian Solomon's book Railway Maintenance, The Men and Machines That Keep the Railroads Running, today the typical layout for a well-ballasted railroad track system is stone lined to the top of the railroad ties protruding roughly 14 inches to either side. From this point the rock is tapered away on a "3-to-1" slope to an …

Key Takeaways. 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 need for mechanical fasteners.; The core component, a waterproofing membrane, is protected by the ballast, making the …

Ballast stone should meet the membrane manufacturers requirements for the desired wind uplift resistance with regard to size and coverage rates. It is typically required that stone ballast meet the requirements of ASTM D448 size 4, 357 or 3, with larger stone size required for heavier coverage rates. It is important to use only hard …

A ballasted roof is a type of roofing system that utilizes the weight of heavy materials to hold the roofing membrane in place. Unlike traditional roofing systems that …

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 aluminum (other ...

Ballast / River Rock Removal ... When preparing for solar panel installation, we begin with gravel and stone removal from the roof to make room for the solar panel installation. There is no faster or safer way to remove the stone than with our roof vacuuming services. Whether the building is one story high or 40 stories high, Adler has the ...

RoofStone is a Better Alternative to Stone or Gravel Ballast. ... 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. ...

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The stone used for (single-ply) ballast has been sized using ASTM D448. The wind performance of this material was extensively studied in wind tunnels and by field inspections during the 1970s and 1980s, resulting in the development of ANSI/SPRI/RP-4. The key reason for developing RP-4 was to eliminate improper use of stone ballast. The …

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 ...

Gravel Ballasted Roofs. In gravel ballasted roofing systems, the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. …

The use of ballast is the original method of waterproofing and utilizes dirt, sod, palm leaves and other natural materials to shed water. These items, along with gravel and stones, are subsequently used to ballast rags, …

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 ASTMD7655/D7655M "Standard Classification for Size of Aggregate Used as Ballast for Membrane Roof Systems") or paver systems or lightweight interlocking paver systems.