What is Polyiso INSULATION. Polyisocyanurate (polyiso) is a closed-cell, rigid foam board insulation consisting of a foam core sandwiched between two facers. The facers are composed of various organic and inorganic materials. It is used in over 70% of commercial and residential markets for both wall and roof applications.
All 38 plays which we recognize as Shakespeare's were published before 1634 in some form. We are very fortunate in that two friends of Shakespeare's, Heminges and Condell, decided after his death to publish a compendium of his plays.
Shakespeare did not do that, nor did he divide the plays into acts and scenes. All that was done for the first time by the playwright Nicholas Rowe (1674-1718), in his six volume edition of Shakespeareâs plays he edited in 1709. The German critic, Guystav Freytach (1816-1895), attempted to rationalise the five act structure.