Hard to tell for sure without a close look, but the roofing / waterproofing material looks like TPO, a single-ply roofing membrance. It is not made for direct traffic, so appears someone has installe ... read more
For most gensets, simply changing the orifice and a few adjustments will allow the conversion.
Here are links with instructios and video:
http://www.thegoodsurvivalist.com/how-to-convert-your-generat ... read more