Roof Ballast Rock

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Roof ballast rock.

Business hours monday thursday 7 00am 6 00 p m f r i d ay 7. Stone ballast typically requires crushed graded stone placed over a stone filter sheet rolled out over the insulation. Ballast river rock removal ballast vacuuming services will remove all river rock from single ply roofs. The firestone epdm ballasted system is an economical epdm roofing system suitable for a wide variety of buildings.

Needed at perimeters and at large penetrations. 2 1 2 8 unwashed rock. A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. Large mixed color decorative rock.

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. Our roofing ballast is commonly installed over membrane and single ply systems at 1000 1500 pounds per square. In the field of the roof a minimum of 10 lbs s f. Ballast stone can crush the underlying insulation creating weak spots in the roof membrane.

The insulation is loose laid onto the decking. Ballast is required with 20 lbs s f. Most importantly saves time allowing projects to run efficiently. Next the membrane is rolled over the insulation 2.

Click here to edit text. It is however ballasted generally with gravel. In gravel ballasted roofing systems the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. Contact hydrotech for specific installation guidelines.

Medium mixed color decorative rock. Single ply roofing materials aren t self adhered nor are they sealed together in any way. The stone ballast on a ballasted roof system is the only thing holding the roof system in place. 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.

Over time the stones move around creating bald spots where the system isn t held down at all. Stone ballast is no longer allowed by many building codes. In windy areas ballast stone can actually blow off the roof creating projectiles below. When the concept first came to the u s plenty of roofers scratched their heads and wondered how the roof stayed on without being anchored especially during high winds or storms.

Conventional gravel ballasted roofs have been built for many years and are suitable on most flat roofs and structures. Unwashed landscaping decorative drainage and roof ballast stone. White ballast can range in size from 2 1 2 3 4 inches and can be made to meet various astm standards.