Hanover Roof River Rock Ballast

What is the SRI value of light gravel used on roof ... - Green Home …

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 ...

Aggregates & Road Base | Rock & Gravel Supply

1 1/2″ Roof Ballast (round) 1 1/2″ Sewer Rock (round) 1 1/2″ CA-1 Crushed Granite. 2″ Crushed Granite Construction Entryway Rock (used for as a buffer from the construction site to the local roadways to keep construction materials …

Rock Vacuum From Single Ply and IRMA Systems - RK Hydrovac

This process begins with vacuuming all 1″ to 2.5" river rock from single-ply roof systems. The roofing contractor will have an area onsite to stockpile the vacuumed gravel to be used in the re-ballasting process. Once the new membrane is installed, the re-ballast can begin. Using the rock removed and stockpiled onsite, the rock will be ...

Railroad Ballast (Rock): Specifications, Sizes, Background

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 eventual distance of 9 feet, …

Inspection checklist for photovoltaic (PV) arrays ... - Hanover Insurance

After a strong wind event, inspect and address the following: Loose or disconnected conduit, wiring, or electrical connections. Damage to roof cover, including tears and abrasion. Damage to PV arrays, including panels, connectors, and ballast. Movement of PV system and components, particularly changes in proximity to other roof-mounted ...

maryland river rock for ballast - oleificiotobaldiluigi.it

choosing a river rock stone ballast. Rock Bulk C-Ballast cydRiver Valley Horticultural Rock Bulk C-Ballast cyd 3/4-1 Chipped Granite perfect for drainage use driveways and plant beds Sold by the cubic yard French drains Chat Online 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...

astm d 448 roof ballast denver - astasy.it

aggregate ballast in gradation for roofing. 27-08-2020· 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 …

SpecTopics: 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 ...

Rock Vacuum - Roof Rock Removal Explained - YouTube

In this video we'll look at a rock vacuum and how we remove the stone from a flat roof. The rock vacuum is a quick and efficient way to get the rocks/gravel ...

Ballast Rock - Gravelshop

Ballast rock is 4-6 inches and can be used for entrances and exits of job sites and drainage. This also known as Bull Rock. Disclaimer. Size Variation: Please allow for up to 10% larger or smaller pieces as well as up to 10% fine material within your product than what is described in the product information. This is due to the sieve mechanism.

Choosing a river rock stone ballast - Manufacturer Of High-end …

Ballasted Roof System Ballasted EPDM Chaffee . Drawbacks of a Ballasted Roof System Adds a lot of weight to the roof system, typically 1015 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 …

Protected Membrane Roofing Ballast Options & Flexibility

Ballast Options and Flexibility One of the advantages of using MM6125® in a Protected Membrane Roof Assembly (PMR) is that once the membrane is installed owners and designers can take advantage of various ballast options (gravel, pavers and Garden Roof®) to suit a specific project's needs. In fact, since MM6125 is keeping the structure watertight and …

Ballast Pavers - Belgard Commercial

Description. Ballast Pavers are the easiest lightweight concrete pavers to install and are designed to interlock with one another forming a ballast system that effectively secures single-ply roofing membranes. Ballast Pavers can be used as a walkway, perimeter ballast, or can fully cover a roof for ultimate protection from wind and UV damage.

River Rock, Natural Stone, Flagstone, Pea Gravel - Mulch

This River Rock comes from Pennsylvania and is available in 3/4 inch., If you are looking for a River Rock with color this may be the one for you. The colors varies from Grey, white, green, red and brown. Round smooth edges.**Bulk gives you nearly 30% more stone over 1 ton pallets** . CT / NE River Rounds 1 X 2 Inch.

Aerodynamically stable roof paver system and ballast block …

I claim: 1. An aerodynamically-stable roof ballast system for protecting a membrane-type roof, said system comprising a plurality of blocks superposed on said roof in laterally interlocked relation, each of said blocks having a topside and a bottomside with leg means for spacing said bottomside from said roof to define a chamber therebetween, each block having selected …

Roof Pavers/Pedestal Systems family - Hanover® Architectural …

Hanover® offers a solution for all roofing/waterproofing needs from Standard Walkway to Roof Ballast to Architectural Plazas and Green Roofs. Effectively draining water from a roof or plaza is a critical issue for every building. Roof & Plaza Pavers Hanover® Roof and Plaza Pavers create serviceable, functional and attractive roof spaces.

RIVER ROCK CALCULATOR [How Much River Rock do I Need?]

Before you start any outdoor landscaping project, having an idea of how much material you will need is vital. We think that you'll agree that being accurate in your estimations will save you both money and time.

Ballasted Roofs Meet Cool-Roof Criteria | Architect Magazine

Washed river-rock ballast has an emittance of approximately 0.88 and a continuous reflectance of approximately 0.22, 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 emittance.

Stone Removal Services | Seal Roofing

Looking to remove ballast rock from your roof? Turn to Seal Roofing. Since 1986 we've provided Philadelphia with various roof improvement services. Youtube; Facebook; LinkedIn; 215.533.4056; ... Whether your roof has river rock, pea gravel, or any other type of ballast, Seal Roofing has the services to safely and efficiently remove it.

Ballast Pavers - Hanover® Architectural Products

Ballast Pavers. tgehr 12/21/2021 Leave a Comment. Leave a Reply. You must be logged in to post a comment. Search. Search. ... Roof Pavers/ Pedestal Systems. High Wind Solutions. Permeable Paving Units. ... Join the Hanover® Team. Search Submit Clear

Ballasted Roof Dead Load - Eng-Tips Engineering Forums

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 Policies. 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 ...

hanover roof river rock ballast

> Prest Roof Pavers by Hanover Architectural Products, Inc., Hanover, PA. ... J. River-Rock Ballast: River washed rock used to ballast the insulation assembly 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. ... Parapro Plaza Deck Guide Specification ...

River Rock - Rock Solid Stone Center

1 1/4″ Brown River Rock. 1- 1/4″ river rock in a light to medium brown color. This natural river rock is commonly used as a ground cover or decorative accent as a dry riverbed. Available at the following Locations: NPR / Spring Hill 1 1/4″ White/Tan River Rock. 1- 1/4″ river rock comes in extra light tan with some medium brown hues. The ...

HANOVER ARCHITECTURAL PRODUCTS | ROOF BALLAST …

Pavers for Lightweight Ballast are not normally recommended for pedestal applications, particularly if pedestrian access is anticipated. HANOVER®ARCHITECTURAL PRODUCTS | ROOF BALLAST PAVERS 5000 Hanover Road, Hanover, PA 17331 717.637.0500 • fax 717.637.7145

Thermography for ballasted rubber roof? - InterNACHI®️ Forum

Will an IR scan show anything of value when hunting a leak on a ballasted rubber roof, since the ballast rocks tend to hold a bit of water under and around them anyhow? ... It would depend on the size or type of Ballast rock. Thick stone ballast roofs are almost imposible for an effective IR scan. ... The ballast is substantially river rock in ...

Ballasted Design Guide -

depending on the required quantity of ballast. The maximum acceptable roof slope for a Lexcan Ballasted Roof System is 2:12 (16%). Parapet / Roof Edge The roof edge or parapet should be a minimum 10 cm (4") higher than the upper level of the ballast. Note that this parapet height requirement may increase for buildings higher than 25 m (80').

maryland river rock for ballast - shibang-china

How to Landscape With River Rock | eHow, River rock in varying sizes: pea gravel, large pebbles, small rocks, large rocks and boulders. Go to Product Center. Ballasted Roofs Meet Cool-Roof Criteria - EcoBuilding Pulse, Washed river-rock ballast has an emittance of approximately 0.88 and a continuous reflectance of approximately 0.22 ...

Roof & Plaza Pavers - Hanover® Architectural Products

Roof Pavers allow easy access to the roof and waterproofing system for repairs or standard maintenance procedures. Whether your project is a roof, deck, plaza or terrace, Hanover® Roof Pavers are serviceable, functional and attractive. Sizes range from nominal 12" x 12" to 24" x 48" [Paver Size Chart] Compressive Strength: 8500 psi

River Rock in the Landscape Means No Water, NOT "No …

Adding river rock and stepping-stones creates flow and directs traffic to the front door without smashing your lawn and creatively extends the driveway and sidewalk. This river rock path flows all the way to the back yard to serve as a sidewalk. This is a great solution for a walk way to your house from the driveway.

EPDM with stone ballast - NACBI Community Forum

Chuck Forman. Community Post Master. NACBI Member. Jan 14, 2016. #9. We find gravel ballast on EPDM roofs around here constantly. The main reasons for it here is 1) UV protection as we have some really intense sun around here especially being a …