Bayonet BayoWrap Roof 07 Flame Spec Underlay is a heavy weight, synthetic building underlay for use under roof claddings.
Bayonet BayoWrap Roof 07 Flame Spec Underlay is a high-quality functional film covered with two thick layers of non-woven, spun-bonded, polypropylene fabric providing a heavy-duty fire retardant, self-supporting 3-layer roof underlay for assisting with the toughest conditions.