Method for connecting an edge metal flashing to a roofing membrane

A method for installing a cover strip between an edge metal flashing and a roofing membrane, the method comprising steps of:

• i) providing a roof assembly comprising a roof substrate, an edge metal flashing, and a roofing membrane, wherein a portion of the roofing membrane is trapped between the edge metal flashing and the roof substrate,
• ii) providing a sealing strip having upper and lower major surfaces limited between short and long edges,
• iii) adhesively bonding the sealing strip via its lower major surface to a portion of an upper major surface of the edge metal flashing using a reactive adhesive,
• iv) providing a cover strip having upper and lower major surfaces limited between short and long edges,
• v) heat-welding a first long edge portion of the lower major surface of the cover strip to a portion of an upper major surface of the sealing strip and a second long edge portion of the lower major surface of the cover strip to a portion of an upper major surface of the roofing membrane,
• or
• i′) providing a roof assembly comprising a roof substrate, an edge metal flashing, and a roofing membrane, wherein a portion of the roofing membrane is trapped between the edge metal flashing and the roof substrate,
• ii′) providing a cover strip having upper and lower major surfaces limited between short and long edges,
• iii′) adhesively bonding a first long edge portion of the lower major surface of the cover strip to a portion of an upper major surface of the edge metal flashing using a reactive adhesive, and
• iv′) heat-welding a second long edge portion of the lower major surface of the cover strip to a portion of an upper major surface of the roofing membrane,
• or
• I) providing a roof assembly comprising a roof substrate, an edge metal flashing, and a roofing membrane, wherein a portion of the roofing membrane is trapped between the edge metal flashing and the roof substrate,
• II) providing a self-adhering cover strip comprising a carrier layer having upper and lower major surfaces limited by short and long edges and a layer of a pressure sensitive adhesive coated directly to and covering at least a portion of the lower major surface of the carrier layer,
• III) positioning the self-adhering cover strip such that the adhesive layer covering a first long edge portion of the lower major surface of the carrier layer is directly connected to a portion of an upper major surface of the edge metal flashing and the adhesive layer covering a second long edge portion of the lower major surface of the carrier layer is directly connected to a portion of an upper major surface of the roofing membrane,
• IV) pressing the carrier layer against the roof substrate to effect adhesive bonding between the opposing surfaces of the carrier layer and the edge metal flashing and between opposing surfaces of the carrier layer and the roofing membrane, and
• V) optionally applying a sealant composition to at least one of the long and/or short edges of the carrier layer.

A roof system comprising:

• i. a roof substrate,
• ii. a roofing membrane covering at least a portion of an upper major surface of the roof substrate,
• iii. an edge metal flashing, wherein a portion of the roofing membrane is trapped between the edge metal flashing and the roof substrate, and
• iv. a cover strip or a self-adhering cover strip,
• wherein the roof system further comprises a sealing strip having upper and lower major surfaces limited between short and long edges, wherein the sealing strip is adhesively bonded via its lower major surface to a portion of an upper major surface of the edge metal flashing using a reactive adhesive and wherein the cover strip has upper and lower major surfaces limited between short and long edges and wherein a first long edge portion of the lower major surface of the cover strip is heat-welded to a portion of the upper major surface of the sealing strip and a second long edge portion of the lower major surface of the cover strip is heat-welded to a portion of an upper major surface of the roofing membrane,
• or wherein the cover strip has upper and lower major surfaces limited between short and long edges and wherein a first long edge portion of the lower major surface of the cover strip is adhesively bonded via its lower major surface to a portion of an upper major surface of the edge metal flashing using a reactive adhesive and wherein a second long edge portion of the lower major surface of the cover strip is heat-welded to a portion of an upper major surface of the roofing membrane
• or wherein the self-adhering cover strip comprises a carrier layer having upper and lower major surfaces limited by short and long edges and an adhesive layer of a pressure sensitive adhesive coated directly to and covering at least a portion of the lower major surface of the carrier layer and wherein a first long edge portion of the lower major surface of the carrier layer is bonded to a portion of an upper major surface of the metal edge flashing by the adhesive layer and a second long edge portion of the lower major surface of the carrier layer is bonded to a portion of an upper major surface of the roofing membrane by the adhesive layer.