Ballast stones are usually one to two inches thick and applied more generously than on a built up roof.
Roof ballast rocks.
4 blue round gravel approx.
Ballast removal and re ballast or swap out as some call it allow you to save on the cost of purchasing new ballast for your repair or re roof jobs.
On the other hand ballast roofing might be the right choice for your commercial property if you live somewhere with a ready source of ballast rocks gravel of the appropriate size and you prefer the aesthetic look and texture of the larger stones.
The gravel top coat is also extremely resilient to heavy foot traffic and high wind scenarios.
A ballasted roof means that the roof membrane is not anchored or adhered in any way to the decking material.
Roofing southwest a ballast system helps cut roof system application costs as it takes less time to install since sealing the layers together isn t necessary.
Ton or 60lbs bags 3 roofing ballast astm d 448.
The heavier stones provide substantial protection against wind gusts.
In gravel ballasted roofing systems the waterproofing membrane is covered and ballasted against wind uplift and other exposures with a layer of gravel.
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.
This is for a roofing membrane that is not fully adhered to substrate and the pebbles are essentially acting as a paperweight.
Products may run larger than description.
This process begins with vacuuming all 1 to 2 5 river rock from single ply roof systems.
Landscaping decorative drainage septic systems roof ballast.
Despite the positive qualities associated with a ballasted roof system there are some challenges.
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Roofing ballast is usually the little pebbles you see on a flat ish roof.
831 main street bridgewater nj 08807 1 800 82 rocks.
Naturally round grey and tan granite.
Used in roofing applications.
Why not fully adhere.
It is however ballasted generally with gravel.
Paving stones can also be added to create walkways which adds value to your property.
Conventional gravel ballasted roofs have been built for many years and are suitable on most flat roofs and structures.