Method for fastening building materials together

Abstract

Methods and structures involving the use of a double-sided adhesive membrane assembly having one adhesive surface with low initial tackiness to permit a substrate to be re-positionable even if pressed into contact against the adhesive. The method allows wood deck components, flooring planks, roofing tiles, and other building material components to be fastened together conveniently while securing a waterproofing and/or sound-deadening effect.

1 . Method for fastening two substrates together, comprising: 
 positioning between two substrates a membrane assembly having a sheet-like body structure having opposing first and major faces, said first major face comprising a first pressure-sensitive adhesive surface which adheres said membrane to one of said substrates upon pressed contact, and said second major face thereof comprising a second pressure-sensitive adhesive surface having an initial tack that is less than that of said first pressure-sensitive adhesive surface, whereby a second substrate placed into pressing contact against said second pressure-sensitive adhesive surface can be repositioned into another contact placement without destroying the integrity of the surface of said second pressure-sensitive adhesive; and    mechanically fastening said two substrates together by driving at least one mechanical fastener through said membrane assembly.    
   
   
       2 . The method of  claim 1  wherein said first pressure-sensitive adhesive is applied to said first substrate and contact-pressed to adhere said membrane assembly to said first substrate, and said second substrate is subsequently contact-pressed onto said adhered membrane assembly prior to mechanically fastening said second substrate.  
   
   
       3 . The method of  claim 1  wherein said first pressure-sensitive adhesive surface is continuous.  
   
   
       4 . The method of  claim 1  wherein one or both of said substrates comprises a pre-made building material selected from the group consisting of wood, plywood, oriented strand board, gypsum, concrete, mortar, brick, or tile.  
   
   
       5 . The method of  claim 1  wherein said membrane assembly comprises a single adhesive layer having two opposing major surfaces, one of said surfaces having a powdered material, coating, fiber, mesh, or filler operative to decrease initial tack thereof.  
   
   
       6 . The method of  claim 1  wherein said membrane assembly comprises two pressure-sensitive adhesive layers.  
   
   
       7 . The method of  claim 6  wherein said two pressure-sensitive adhesive layers are separated by a reinforcement layer comprising a film, fabric, or both.  
   
   
       8 . The method of  claim 7  wherein said film is comprises a polyolefin, polyethylene terephthalate, polyamide, polystyrene, acrylic, polyvinylidene chloride, polyvinylidene fluoride, aluminum, copper, steel, polycarbonate, or mixture thereof.  
   
   
       9 . The method of  claim 7  wherein said fabric is a woven or non-woven material comprising polyolefin, polyethylene terephthalate, polypropylene, glass, cellulose, cotton, or mixture thereof.  
   
   
       10 . The method of  claim 1  wherein said membrane assembly comprises a first pressure-sensitive adhesive layer reinforced by a fabric, one of said major surfaces of said pressure-sensitive adhesive layer having a second pressure-adhesive layer that has an initial tack that is less than that of said first pressure-sensitive adhesive layer.  
   
   
       11 . The method of  claim 1  wherein said second pressure-sensitive adhesive layer comprises a coating of embedded particles operative to decrease the initial tack of said second pressure-sensitive adhesive layer.  
   
   
       12 . The method of  claim 1  wherein said first pressure-sensitive adhesive comprises a rubberized asphalt, a synthetic adhesive, or mixture thereof.  
   
   
       13 . The method of  claim 1  wherein said membrane assembly is provided in a rolled form having a release sheet that is releasably attached to both of said adhesive surfaces.  
   
   
       14 . The method of  claim 13  wherein both sides of said release sheet are releasably attached to said adhesive layers when said membrane assembly is provided in roll form.  
   
   
       15 . A building material assembly made in accordance with the method described in  claim 1 .  
   
   
       16 . The method of  claim 1  wherein said second pressure-sensitive adhesive surface having an initial tack that is less than that of said first pressure-sensitive adhesive surface has an initial adhesion value of less than or equal to 0.5 pounds per lineal inch and an aged adhesion value of greater than or equal to 3.0 pounds per lineal inch, said aged adhesion arising from mechanically fastening said substrates together by driving at least one mechanical fastener through said membrane assembly.  
   
   
       17 . The method of  claim 1  wherein said membrane assembly comprises a a carrier support film having two major opposing faces, first pressure-sensitive adhesive layer located on a first of said major opposing faces of said carrier support film, and, located on the other of said major opposing faces of said carrier support film, at least two pressure-sensitive adhesive layers, the outermost of which has an initial adhesion value of less than or equal to 0.5 pounds per lineal inch and an aged adhesion value of greater than or equal to 3.0 pounds per lineal inch, said aged adhesion arising from mechanically fastening said substrates together by driving at least one mechanical fastener through said membrane assembly.  
   
   
       18 . A building material assembly made in accordance with the method of  claim 17 .  
   
   
       19 . A building material assembly, comprising: 
 a membrane assembly having a sheet-like body structure with opposing first and major faces, said first major face comprising a first pressure-sensitive adhesive surface which adheres said membrane to a substrate upon pressed contact, and said second major face thereof comprising a second pressure-sensitive adhesive surface having an initial tack that is less than that of said first pressure-sensitive adhesive surface, whereby another substrate placed into pressing contact against said second pressure-sensitive adhesive surface can be repositioned into another contact placement without destroying said second pressure-sensitive adhesive;    said building material assembly further comprising substrate that is releasably adhered against said second pressure-sensitive adhesive surface; and    said building material assembly further comprising a release sheet liner that is removably attached to said first pressure-sensitive adhesive surface.    
   
   
       20 . The building material assembly of  claim 19  wherein said substrate being releasably adhered to said membrane assembly is a surface component of a floor, wall, roof, or deck.  
   
   
       21 . The building material assembly of  claim 19  wherein said second pressure-sensitive adhesive surface having an initial tack that is less than that of said first pressure-sensitive adhesive surface has an initial adhesion value of less than or equal to 0.5 pounds per lineal inch and an aged adhesion value of greater than or equal to 3.0 pounds per lineal inch, said aged adhesion arising from mechanically fastening said substrates together by driving at least one mechanical fastener through said membrane assembly.