The present invention also allows {HEAD ~ self installation}, including {TAIL ~ incremental expansion}, by typical homeowners targeted by the major home improvement chains 
including
The present invention also allows { HEAD ~ self installation } , including { TAIL ~ incremental expansion } , by typical homeowners targeted by the major home improvement chains
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH