hanover roof river rock ballast

Ballasted Roofs Meet Cool, May 13, 2009· Washed river-rock ballast has an emittance of approximately 088 and a continuous reflectance of approximately 022, but it is the mass of the ballast that acts as a heat sink and simulates the performance of a traditional cool-roof surface with high solar reflectance and high thermal emittanceKIRBYS SAND & GRAVEL, Unwashed Landscaping, Decorative, Drainage and Roof Ballast Stone Click here to edit text , Medium Mixed Color Decorative Rock Approx 2 1/2" - 8" Unwashed Rock Large Mixed Color Decorative Rock Approx 12"-24" Unwashed Rock Big Rock Approx 24"+ Unwashed Rock Business Hours Monday -Thursday 7:00am-6:00 p m F r i d ay 7: 0 0 a m-5: 0 0 ,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 ,Vac, When reroofing ballasted single-ply systems or inverted roof membrane systems, roofers are faced with the task of removing the river rock ballast from these roofs Vac-It-All Services, Inc can greatly reduce the cost of ballast removal from these systems Learn MoreCommercial Construction: Why do flat roofs have pebbles on ,, A layer of pebbles can substantially extend the life of a flat roof A flat roof will have several layers of a thin membrane made of tar, asphalt and/or bitumen material Pebbles or small rocks spread several inches thick over the outer roof mem,.

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Global Roofing Group, The gravel used in built up roofing (what the roofing contractors were used to) was not the same as that used in a ballasted roof For built up roofing, the gravel was generally 25 - 5 inches in diameter The stones used in ballasted roofing are generally 15 - 25 inches in diameter and applied in a thicker layerRoof Vacuuming | Ballast Removal | Bur & Gravel Removal ,, Ballast/ River Rock Removal Ballast and River Rock vacuuming removes all rock quickly and effectively from the roof The vacuuming service allows for a less labor intensive job, as opposed to shoveling and wheelbarrowing rock away Debris and dust fragments are ,ornamental roof ballast river rock, The roofing contractor will have ,Ballasted Roofs Meet Cool-Roof Criteria | Architect 13/5/2009 Washed river-rock ballast has an emittance of approximately 088 and a continuous reflectance of approximately 022, but it is the mass of the ballast that acts as a heat sink and simulates the performance of a traditional cool-roof surface with ,The Hanover Insurance Group, THE HANOVER INSURANCE GROUP 440 Lincoln Street Worcester, MA 01653 508-855-1000 ,Railroad Ballast and Other Track Materials, Ballast is produced from natural deposits of granite, trap rock, quartzite, dolomite or limestone Vulcan produces ballast and other track materials for shipment to customers from coast to coast, and has a dedicated Ballast Sales Team that can help you with your ballast needs from any of our faciliti.

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#4 ROOFING BALLAST, ASTM D 448 - Naturally round, grey and tan granite Used in roofing applicationsHanover® Architectural Products, After extensive research and wind testing, Hanover ® is proud to announce the new and improved Ventloc ® Paver Ventloc ® is the only ballast paver in the industry which enables the transfer of air pressur Its patented design offers superior wind uplift resistance in a lightweight concrete roof paverSchofield Stone: Schofield Roofing Aggregates, Bagged Stone by Garden Rock; Schofield Bulk Products; Schofield Cambridge Quarry Wholesale Products , #2 ROOFING BALLAST - NO LONGER MEETS SPEC ASTM D 448 Naturally round, grey and tan granite , Ton or 60lbs Bags #3 ROOFING BALLAST - ASTM D 448 ASTM D 448 - Naturally rounded, off-white and beige quartzite Used in roofing applications ,MID, ROOF VACUUMING SERVICE Ballast vacuuming services will remove all river rock from single-ply roofs Our process, as opposed to traditional forms of removing ballast reduces intense labor portions as well as minimizes risk of damaging roofs with shovels & wheelbarrows Most importantly saves time allowing projects to run efficientlyDallas River Rock Supplier, Wide selection of river rock, sand, and landscape gravels for decorative use in interior and exterior hardscap Available by the pound, ton, or truckload.

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Why Put Gravel on a Flat Roof, Ballasted flat roofs are a popular choice, especially for commercial buildings Additional benefits of ballast on a flat roof The gravel in a ballasted roof helps absorb heat, preventing the sun from heating the roof materials below and making the roof more energy-efficient (Sources: WATERPROOF! Magazine and Roofing Southwest) Although ,02900 Pre, >Hanover Architectural Products, Inc, Hanover, PA L River-Rock Ballast: River washed rock used as ballast shall meet the ASTM D 448 #57 requirements Diameter of the rock particles shall maintain a nominal 3/4 inch to a maximum 1-1/2 inch range PART 3 EXECUTION 301 PREPARATIONBallasted Roof Dead Load, A loose ballasted roof (where you have 1 to 2 inches of gravel) is more on the order of 12 psf Check out Eng-Tips Forum's Policies here: FAQ731-376: Eng-Tips Forum Polici RE: Ballasted Roof Dead Load jike (Structural) 19 Jun 14 22:09 JAE is correct Multi-story buildings and perimeters will often require more than 10 psf ballast for ,Velocity Roof Vac Services Chicago Roof Rock Ballast ,, Jan 28, 2014· 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,How to Calculate River Rock | Hunker, Oct 08, 2020· River rock comes in several sizes, such as 1 1/2-inch stones or 4-inch ston The size of stone you choose affects how many bags or tons it takes to cover the area you're landscaping Smaller stones work well filling in between stepping stones or as landscaping mulch, ,.

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Ballasted Roof System | Ballasted EPDM, Drawbacks of a Ballasted Roof System Adds a lot of weight to the roof system, typically 10-15 pounds per square feet Extremely difficult to find a leak in this system, since the membrane is well hidden Ballast stone traps a lot of dirt, making patching difficult Ballast stone fractures and gets sharper over time, which can puncture the ,Sunbelt Vacuum Roof Vacuuming / Ballast Removal, This is an example of Roof Vacuuming / Ballast Removal provided by Sunbelt Vacuum Service, The nationwide leader in roof and industrial vacuum service 1800,Hanover Architectural Products, Hanover's extensive line of paving products truly completes your home and landscaping While unique color and aggregate blending and custom sizes have become Hanover's trademark, a wide range of products are stocked in several standard colors, sizes, and texturDefault Gravel SRI Values | LEEDuser, Jan 20, 2015· I am also working on a project that has a large green roof with light colored gravel in some areas The manufacturer has not performed testing to provide an SRI value for the gravel However the Lawrence Berkeley National Laboratory (LBNL) has published a list of default SRI values for various types of roof membrane materials, including gravelSand / River Rock / Crushed Rock / Cobblestone / Pea ,, Front Range Material Inc sells in wholesale a range of washed river rock and crushed rock products throughout Colorado Lafayette, CO Hours of Operation Monday through Friday 8:00 AM to 4:00 PM , 4" Ballast - Gradation Base / Fill 4531 - 3/4" Class 6 Road Base - Gradation 3-3002 - 3/4" Recycled Asphalt - Gradation 3-3001 - Class 6 Recycled ,.

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Ballast Pavers, A wide range of sizes are available Unlike river gravel which has been known to be hazardous, pavers used as ballast or walkways provide a durable, safe method of protecting the roof system Lightweight Ballast Pavers can be used when the roof will not accommodate the load of a standard paverYork Building Products, OVER 80 YEARS OF INNOVATION Providing the design community and construction industry with leading edge products Featured Product Gemstone® The natural aggregates in our Gemstone® units are brought forth by grinding the face of the unit , Resources TOOLS TO AID SPECIFICATION Find product specs, brochures, CAD details, BIM objects, test reports, case studies and , Home Read ,Prest® Pavers, Prest ® Pavers On-Grade Hanover's Architectural Concrete Paver line has the characteristics and the performance of natural stone, but can offer the project an economical alternative

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