Roof Ballast Rock

Stone ballast is no longer allowed by many building codes.

Roof ballast rock.

Unwashed landscaping decorative drainage and roof ballast stone. Our roofing ballast is commonly installed over membrane and single ply systems at 1000 1500 pounds per square. The stone ballast on a ballasted roof system is the only thing holding the roof system in place. It is however ballasted generally with gravel.

Large mixed color decorative rock. Business hours monday thursday 7 00am 6 00 p m f r i d ay 7. The firestone epdm ballasted system is an economical epdm roofing system suitable for a wide variety of buildings. 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.

Medium mixed color decorative rock. In the field of the roof a minimum of 10 lbs s f. Needed at perimeters and at large penetrations. 2 1 2 8 unwashed rock.

In gravel ballasted roofing systems the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. White ballast can range in size from 2 1 2 3 4 inches and can be made to meet various astm standards. The insulation is loose laid onto the decking. Contact hydrotech for specific installation guidelines.

There are no fasteners installed at all 3 and 4. Ballast river rock removal ballast vacuuming services will remove all river rock from single ply roofs. It can be applied on any building that can accommodate the extra load of the ballast and where the roof slope does not exceed 10. Next the membrane is rolled over the insulation 2.

Over time the stones move around creating bald spots where the system isn t held down at all. Ballast stone can crush the underlying insulation creating weak spots in the roof membrane. Single ply roofing materials aren t self adhered nor are they sealed together in any way. Ballast is required with 20 lbs s f.

Stone ballast typically requires crushed graded stone placed over a stone filter sheet rolled out over the insulation. Conventional gravel ballasted roofs have been built for many years and are suitable on most flat roofs and structures. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. Click here to edit text.

In windy areas ballast stone can actually blow off the roof creating projectiles below. A1 grit ballast is a natural smooth water worn and screened large gravel used for many applications. 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.