Ballast Design A designer of IRMA roofing systems has four Ballast Designs to chose from: Standard, #1, #2 and #3. These Designs vary with building height, parapet height, membrane attachment and wind speed. The following tables are organized by membrane attachment method and building height. And they list the Ballast Design which is ...
#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 Living Supply, LLC • Schofield ...
Ballast Layer – The primary feature of a rock roof is the ballast layer, which consists of rocks, gravel, or sometimes concrete pavers. These materials are spread evenly across the surface of the roofing assembly to hold it in place and provide additional protection against wind uplift.
Ballast Materials: Select ballast materials carefully, considering factors such as weight, color, and sustainability. Keep in mind that lighter-colored materials may help reflect sunlight and reduce cooling costs. Roof Membrane: …
stone ballasted blue roof 1 Ballast Layer Rounded pebble ballast 50mm Typically 20 – 40mm. 50 80 FSM 600 protection mat 2 Filtration layer SV 600 Eco mat 6 3.8 3 Attenuation RWR 100 attenuation cell 100 8.06 4 Protection Layer 6 3.6 5 Underlying Waterproofing Bauder's underlying waterproofing system Not included Not
This ballasted retail building roof experienced ballast and membrane displace-ment. but the parapet wall kept the stones on the roof. Code officials concemed about stone ballast size can have stone screened accord-ing to AS1M D 448. However. a relatively quick measure of stone size can be accomplished by laying a ruler on the stone and ...
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 roofing membranes.
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.
Gravel and stone ballasts on commercial buildings' roofs aren't just there for decoration - they're important for protection and stability! Gravel and stone ballasts can really bear down the roof in stormy, high-wind areas, …
A ballast roof uses large stones or pavers to hold down the roof membrane without using adhesive, allowing for easier repairs and maintenance. Ballast roofs offer several advantages, including… Durability – The ballast layer helps to protect the roofing membrane from damage and extends its lifespan by reducing exposure to UV radiation and ...
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.
Will economic and trade cooperation continue to be the "ballast stone" in China-U.S. relations? The answer isn't clear. In recent years, the United States has pursued a policy of containment and suppression of China as a strategic competitor, undermining the advancement of constructive bilateral economic and trade relations.
When looking for a long-lasting roofing solution, a ballasted roofing solution (EDPM membrane weighted down with stone) can strike the perfect balance of durability, cost, and environmentally friendly. Skip to the content. 800.398.7073. ... The ballast (river stone or pavers) shield the membrane from inclement weather and foreign objects to ...
They are often referred to as "gravel ballast." These stones serve several purposes… Protection – Gravel ballast protects roofing material and extends its lifespan. Weight distribution – Gravel on flat roofs prevents wind uplift. Heat reflection – White stones reflect sunlight, reducing roof heat absorption. This lowers cooling costs and minimizes heat transfer …
In open country, both pea-graveled and stone ballasted roofs are limited to 35-foot-tall buildings. RP-4 allows a bit more leeway, with ballasted roofs allowed on buildings up to 45 feet in …
Having understood the overall purpose and benefits of roof ballast, you'd now be keen to discover the specific materials used.The primary materials commonly used for roof ballast are gravel or stone, concrete pavers, and ballast pavers.. Gravel or stone ballast is frequently used because it's readily available, cost-effective, and easy to apply. . Different types of gravel could be used ...
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 …
Ballasted Roof System. For Your New or Reroofing Needs. Beginning in the 1970's, the ballasted roof system began becoming popular as a viable roofing option. The roofing system depends on the weight of stone, at least 10 pounds per square foot, to hold down a roofing membrane.
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 ...
Ballast removal is a crucial step in maintaining the integrity of your commercial or industrial roof. Whether you're preparing for a roof replacement, conducting repairs, or performing regular maintenance, removing ballast such as gravel, stone, or pavers must be done with precision and care. Adler offers expert ballast removal services that ensure your roof remains undamaged …
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.
Unlike traditional roofing systems that rely on adhesives, screws, or mechanical fasteners, ballasted roofs are secured using ballast materials, …
Environmental advantages of gravel ballast roofs. Reduced heat island effect: Gravel ballast roofs help mitigate the heat island effect, which refers to the localized increase in temperature in urban areas. The layer of gravel reflects a significant amount of solar radiation, reducing the absorption of heat by the roof and minimizing its contribution to urban heat islands.
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 ...
used the ballast stones or pavers to hold the membrane and/or insulation in place. This is contrasted to the pea gravel-covered, built-up roof systems where the gravel was used as UV protection and additional fire protection as well as a clean walking surface. In the ballasted roof, the concept of just the weight of ballast keeping the system ...
In gravel ballasted roofing systems, the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. ... The gravel ballast secures the roof waterproofing against wind uplift forces. Sika's Experts Provide Assistance to Benefit your Business. Unique Services. Sika has a proven track record ...
Having gravel and stone on your roof also makes getting to the membrane for any fix-ups or maintenance very easy. This makes keeping up with regular checks and quick fixes super simple, really underlining the need for a roof that's properly put together and kept in good shape. ... Eagle Rivet Roofing has some cool tech that makes ballast ...
In gravel ballasted roofing systems, the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. Conventional gravel ballasted roofs …
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.
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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