Roof Ballast: Difference between revisions
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*Gravel roof ballast - 80 kg/m2 and 2" minimum over a scumbag [https://www.sika.com/en/construction/roof-systems/gravel-ballasted-roofs.html]. About 16.4 lb/sf [https://www.sika.com/en/construction/roof-systems/gravel-ballasted-roofs.html] | *Gravel roof ballast - 80 kg/m2 and 2" minimum over a scumbag [https://www.sika.com/en/construction/roof-systems/gravel-ballasted-roofs.html]. About 16.4 lb/sf [https://www.sika.com/en/construction/roof-systems/gravel-ballasted-roofs.html] | ||
*Ballast costs $1.5-$2.5/sf [https://www.homeadvisor.com/cost/roofing/rubber-membrane/] | |||
*Minimum 10 psf or 18 psf required depending on using rounded gravel vs individual pavers [https://www.buildsite.com/pdf/carlislesyntec/Carlisle-SynTec-Sure-Seal-EPDM-Loose-Laid-Ballasted-Roofing-System-Guide-Specifications-B28319.pdf] | |||