Portable fastener driving device

An insulated staple comprising:

• a staple having a width and a bight section extending in a widthwise direction of the staple between a pair of legs, the legs extending outwardly from an underside of the bight section, each of the pair of legs and the bight section having a thickness extending transverse to the staple width;
• and
• an insulation form operably affixed to the staple, the insulation form having a crown section, the crown section having a top side arranged along the underside of the staple bight section and a width extending in a widthwise direction of the staple, the form also having a thickness extending transversely across the form width between opposing sides of the insulation form, the thickness being substantially equal to or less than the thickness of the staple leg and the thickness of the staple and the form width being less than or substantially equal to the width of the staple;
• wherein the insulation form includes at least one connector adapted to connect any adjacent insulation forms for forming an array of connected insulation forms.

A method of forming at least one insulated staple, the method comprising the steps of:

• providing at least one staple having a width and a bight section extending in a widthwise direction of the staple between a pair of legs, the legs extending outwardly from an underside of the bight section, each of the pair of legs and the bight section having a thickness extending transverse to the staple width;
• providing at least one insulation form having a width and a crown section, the crown section having a top side configured for operable arrangement along the underside of the staple bight section and a width extending in a widthwise direction of the staple, the form having a thickness extending transversely across the form width, the thickness being substantially equal to or less than a thickness of the staple, and the form width being less than or substantially equal to the width of the staple;
• and,
• placing the at least one insulation form between the pair of legs of the at least one staple such that the top side of the crown section is arranged underneath the underside of the staple bight section and such that the thickness of the insulation form is arranged within the thickness of the associated staple.