ballast stone roof

Ballasted Roof System | Ballasted EPDM

Aggregate ballast blown off the roof can break windows and skylights and damage other building surfaces. For this reason, installation of stone or aggregate ballasted roof assemblies in hurricane-prone regions is not permitted by the 2018 IBC. In hurricane- and tornado-prone areas, selection of a paver ballast assembly is

Ballast Paver Spec

8. At center of roof, pavers may be cut to a minimum width of 6 inch. 9. Use ASTM #3 stone ballast at 12 lbs. per square foot on roof interior. ****OR**** A. Walkway System 1. Install minimum 18 inch wide a slip sheet under walkway. 2. Install single or multiple course walkway between roof access and maintained equipment locations.

The Purpose of Ballast on a Flat Roof | Roberts Roofing

 · The Purpose of Stone or Gravel Ballast on a Flat Roof. Published by Justin on September 19, 2019 September 19, 2019. It is not unusual to find a gravel top coat on commercial roofing systems. Though primarily confined to built-up asphalt roofing systems, it can be applied to single-ply EPDM, rubber-based membranes as well. These small stones ...

Rock Vacuum From Single Ply and IRMA Systems | RK HydroVac

Single Ply and IRMA Systems Rock Vacuum. Our Rock ballast vacuuming services will remove all 0.75" to 2.5" river rock from single-ply roofs. By removing ballast this way rather than traditional shovels, wheelbarrows, and chutes, you remove the most labor-intensive portion of ballasted single-ply tear-offs. This saves you time, labor ...

ASTM D7655 / D7655M

4.1 The wind resistance of ballasted membrane roof systems is determined largely by the size and weight of the ballasted used. ANSI/SPRI RP-4 provides a method for the wind design of ballasted single-ply membrane roof systems and includes specific guidelines for the size and weight of aggregate used as ballast.

5 Problems With Tar and Gravel Commercial Roofs

Added Weight to Structure. Tar and gravel roofs add substantially more weight to the building structure. After you add the layers of tar, supporting fabrics and the top layer of gravel, your roof can be an extra 5 – 10 lbs. per square in heavier than before. This added weight can strain your roof, underlying substrate, and facility as a whole.

Roof Ballast Rock Removal Services | Seal Roofing

Seal Roofing offers roof vacuuming services, either as a free service for any roof repair job or as an individual service if you need to replace your stone or gravel for any reason. You can expect a fast, efficient ballast rock removal from our experienced team so you can get back to business as usual.

A1Grit

White Ballast. A1-Grit Ballast is a natural, smooth, water-worn and screened large gravel used for many applications. White Ballast can range in size from 2 1/2 - 3/4 inches and can be made to meet various ASTM standards. Our roofing Ballast is commonly installed over membrane and single-ply systems at 1000-1500 pounds per square.

Rubber Roofing

Rubber Roofing

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KIRBYS SAND & GRAVEL

Unwashed Landscaping, Decorative, Drainage and Roof Ballast Stone. Click here to edit text #2 Round Blue Gravel Approx.1 1/2"-3" Excavated from our pond with a natural blue tint with brown and natural color hues. Medium Mixed Color Decorative Rock. Approx. 2 1/2" - 8" Unwashed Rock. Large Mixed Color Decorative Rock.

Other Types of Roofing That Can Save Energy | Products ...

Ballasted roofing systems are fairly common and consist of a membrane that is usually loose laid on the roof deck and held in place by the weight of a natural stone or precast concrete pavers. The weight of the stone or pavers employs the force of gravity to hold the roof membrane in place and counter the uplift forces of wind.

TPO Roofing Systems | Firestone Building Products

Thermoplastic polyolefin (TPO) single-ply roofing membranes are among the fastest growing commercial roofing products and have gained praise across the industry for their many performance and installation advantages. As demand increases for heat-reflective and energy efficient roofing systems, you can rely on TPO single-ply roofing membranes to ...

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 ...

Ballast Paver V2 D&I Guide

Ballast Paver units on the roof. E. Protect membrane and installed areas of Ballast Paver from damage when transporting pallets of Ballast Paver or other material. Place 3/4" plywood sheets in traffic path and use carts with pneumatic tires. 1.08 Warranty A. Ballast Paver 10 year limited material warranty

Types of Roof Membranes for Flat or Low-Slope Roofs ...

Stone ballast or concrete pavers are then installed over the membrane to prevent uplift and protect the membrane — special care must be taken to avoid damaging the membrane when installing the stone. Ballasted roofs are not very common since the ballast makes it hard to find and repair leaks, plus the ballast material can shift around or ...

Chapter 15: Roof Assemblies and Rooftop Structures, NYC ...

Aggregate used as surfacing for roof coverings and aggregate, gravel or stone used as ballast shall not be used on the roof of a building located in a hurricane-prone region as defined in Section 1609.2, or on any other building with a mean roof height exceeding that permitted by Table 1504.8 based on the exposure category and basic wind speed ...

How-To: Coat Gravel Roofs | Elastek

(NOTE: Some commercial single-ply roofs are ballasted with gravel—this report does not apply to these) Gravel Roof Advantages Most gravel roofs are inexpensive to build, offer some protection to vulnerable asphalt against UV damage, and the stones are very durable.

JM EPDM PROTECTIVE STONE MAT

Ballasted • The JM EPDM Protective Stone Mat is typically installed between the overlying ballast or pavers and the JM EPDM roofing membrane. • Refer to JM EPDM applicator guides or detail drawings for instructions. Packaging and Dimensions Roll Size 15'' wide x 300'' long (4.57 m x 91.44 m) Material Weight 7.0 oz/yd2 (237.34 g/m2) (nom)

A Tar & Gravel Roof Guide for Beginners (Updated for 2021)

 · Ballast is commonly used with roofs made of tar-and-gravel roof alternatives, including ethylene propylene diene monomer (EPDM), polyvinyl chloride (PVC) and thermoplastic polyolefin (TPO) single-ply flat roofs. It''s fire resistance (ballast roofing offers Class-A fire resistance without the need for gypsum underlayments or expensive fire ...

Protected Membrane Roofing Ballast Options

stone ballast Typically requires crushed, graded stone placed over a stone filter sheet, rolled out over the insulation. In the field of the roof, a minimum of 10 lbs./s.f. ballast is required, with 20 lbs./s.f. needed at perimeters and at large penetrations.

Design of Loose-Laid Gravel Stone Ballasted Roofs ...

Roof areas subjected to different wind action 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 ballast …

Roof Vacuuming Services in Fort Worth and Dallas, TX

Less Damage: Traditional methods involve a crew of men using shovels on the rooftop, which can sometime damage the roof beneath the ballast stone. Additionally, the vacuum method keeps your roof clear of heavy wheelbarrows and extra feet. More Versatility: Roof vacuuming is a safer method for taller buildings, and roofs of varying designs ...

Schofield Stone|Stone Wholesalers & Quarriers

Blue Stone & Flagstone. Blue Stone Irregular Flagstone. Blue Stone Pattern Flagstone. Irregular Flagstone. Pattern & Imported Flagstone. ... #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. PEARL PEBBLE 1/2. Roofing Spar.

Weight of Roofing Materials: Complete List | Roof Online

EPDM Roof Membrane 60-mil, Ballasted (Membrane and Stone Ballast Only) 10.75 – 20 lbs: 1075 – 2000 lbs: 52.5 – 97.65 kg: Firestone Building Products: EPDM Roof Membrane 60-mil, Fully-Adhered (Membrane Only) 0.47 lbs: 47 lbs: 2.29 kg: Firestone Building Products: EPDM Roof Membrane 90-mil, Fully-Adhered (Membrane Only) 0.56 lbs: 56 lbs: 2 ...

Weighing in on Ballasted Roofs: Costly Issues You Need to ...

 · 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).

Message Board Thread

 · Roof Survey - Large Stone Ballast: Dusty: 6/30/2005: I recently looked a leaky flat rubber mambrane roof having large river stone ballast. The ballast is spread 2"-4" in thickness acrossed the membrane. I was on the roof about 2 hours after sundown and the roof appeared uniform in …

Ballast Can Do It All | Buildings

 · 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.

Department of Public Works & Engineering Building Code ...

Ballasted roofs with a minimum stone ballast of 17 lb/ft2 or 23 lb/ft2 pavers1½ inches nominal diameter . 2. Vegetated roof systems that contain a minimum thickness of 2.5 in. of growing medium and covering a minimum of 75% of the roof area with durable plantings . 3.

Ballasted EPDM roof systems have been a sustainable option ...

The benefits of a ballasted roof assembly don''t cease when a ballasted EPDM roof has reached the end of its useful service life. Often, when a ballasted system needs to be ... stone or pavers must be moved one small section at a time so the shifting weight does not result in roof …

Ballasted Roof Dead Load

 · 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. The membrane for such systems is usually not attached to the substrate, although some systems do have supplementary perimeter attachment. Since the ballast is the primary ...

Ballasted Roof System | FiberTite

Ballasted Roof Systems: A Compelling Option for Increased UV and Fire Resistance. An alternative to adhered and mechanically attached systems, FiberTite can also be installed in typical ballast configurations using conventional stone or paver ballast to secure the FiberTite membrane to the roof stalled over loose laid FiberTite membrane, ballast roof systems reduce membrane exposure …

A New Look at Ballasted Roofs | WATERPROOF! Magazine

 · 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 …

Rounded Pebbles, Ballast

Rounded Pebbles, Ballast. A wide selection of naturally rounded or tumbled pebbles and gravels are available in numerous sizes and colours. Used primarily to weigh down and anchor roofing components, such as insulation sheets, these products also provide a highly decorative finish whilst minimising damage to the roofing substrate due to their ...

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 from UV rays, hail, and foot traffic. The loose-laid layers in a ballasted roofing system are easily taken up making ...

Roof Ballast Stone Removal Services in Fort Worth and ...

Ballast Stone Removal in Texas. Whether you are replacing your current single-ply membrane roof, or if you are looking to install a new roof entirely, you will need to have the ballast stone removed from your roof''s surface. After that, your roof will need to be thoroughly swept and cleaned, to ensure proper adhesion of whichever roof option ...