torch on roofing...adding pea gravel (or similar)
This house is Hillside and all exterior finishes need to be approved. Because of my lack of experience with flat roofs, our roofer installed a black torch roof that is straight black (see photo) but the approved finish is a pea gravel topping that is best described as darker pepper color (see photo). Is there any way to add granules or any other idea to achieve a similar look to the approved look? Its only a portion of the roof, approximately 8 squares.
Posted by Jack Gray
Hi Michael -
If a pea gravel surface is required, it would be easy to add pea gravel to this roof by applying a layer of cold-process adhesive over the roof and then embedding the gravel in the adhesive. There are many products available, they typically require using a squeegee and coverage is about 5 gallons per square for embedding gravel, so not too expensive for this job, probably much cheaper than buying and installing new mod bit cap sheet materials with the proper color granules (which is also an option). See Henry 902 Permanent Bond Adhesive for an example. This specification isn't for this application exactly, but you can use the section that covers embedding the gravel: https://henry.com/fileadmin/pdf/literature/h3_4-igc-gv.pdf
Hope this helps, let me know if you were hoping to resolve this without using gravel.