It is another object to provide wood shake shingles which remain fire resistant throughout {HEAD ~ many years} of {TAIL ~ exposure} to rain 
of
It is another object to provide wood shake shingles which remain fire resistant throughout { HEAD ~ many years } of { TAIL ~ exposure } to rain
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH