Roof Ballast Rock

Ballast river rock removal ballast vacuuming services will remove all river rock from single ply roofs.

Roof ballast rock.

A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material. Unwashed landscaping decorative drainage and roof ballast stone. Stone ballast typically requires crushed graded stone placed over a stone filter sheet rolled out over the insulation. Over time the stones move around creating bald spots where the system isn t held down at all.

Most importantly saves time allowing projects to run efficiently. Single ply roofing materials aren t self adhered nor are they sealed together in any way. Ballast stone can crush the underlying insulation creating weak spots in the roof membrane. Needed at perimeters and at large penetrations.

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. Contact hydrotech for specific installation guidelines. 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.

There are no fasteners installed at all 3 and 4. In windy areas ballast stone can actually blow off the roof creating projectiles below. Click here to edit text. Next the membrane is rolled over the insulation 2.

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. It is however ballasted generally with gravel. In the field of the roof a minimum of 10 lbs s f. 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.

Stone ballast is no longer allowed by many building codes. The insulation is loose laid onto the decking. 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. Ballast is required with 20 lbs s f.

Business hours monday thursday 7 00am 6 00 p m f r i d ay 7. 2 1 2 8 unwashed rock. Medium mixed color decorative rock. The firestone epdm ballasted system is an economical epdm roofing system suitable for a wide variety of buildings.

In gravel ballasted roofing systems the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel. 0 0 a m 5. Our roofing ballast is commonly installed over membrane and single ply systems at 1000 1500 pounds per square.