Retrofitting wood frame construction against wind damage

Abstract

Embodiments of the present disclosure may include systems for strengthening wood-framed roofs including: at least one rafter and at least one top plate, wherein said rafter is located above said top plate; and wherein said rafter and top plate are affixed to each other by a first block located above said top plate and adjacent to a first side of the rafter; and wherein said block is affixed to said rafter and said top plate by high-elongation adhesive. Methos may include affixing a first block to least one rafter and at least one top plate, wherein said rafter is located above said top plate and adjacent to a first side of the rafter wherein said block is affixed to said a least one rafter and said at least one top plate by high-elongation adhesive.

What is claimed is: 
     
         1 . A system for strengthening wood-framed roofs comprising:
 at least one rafter and at least one top plate, wherein said rafter is located above said top plate;   and wherein said rafter and top plate are affixed to each other by a first block located above said top plate and adjacent to a first side of the rafter;   and wherein said block is affixed to said rafter and said top plate by high-elongation adhesive.   
     
     
         2 . The system of  claim 1 , wherein the high-elongation adhesive comprises a comprising silyl modified polymer. 
     
     
         3 . The system of  claim 2  wherein the silyl-modified polymer comprises silyl-modified polyethers and/or silyl modified polyurethanes. 
     
     
         4 . The system of  claim 3 , wherein the high-elongation adhesive comprises a silyl modified polyether. 
     
     
         5 . The system of  claim 3 , wherein the high-elongation adhesive comprises an amino silane. 
     
     
         6 . The system of  claim 1 , wherein said block comprises wood. 
     
     
         7 . The system of  claim 1 , further comprising a second block affixed to a second side of said rafter and the top of said top plate, wherein said second block is affixed to said rafter and said top plate by high-elongation adhesive. 
     
     
         8 . A method for strengthening wood-framed roofs comprising, the method comprising:
 affixing a first block to least one rafter and at least one top plate, wherein said rafter is located above said top plate and adjacent to a first side of the rafter;   and wherein said block is affixed to said a least one rafter and said at least one top plate by placing high-elongation adhesive at the junction of the at least one rafter and a first surface of the first block and the junction of the at least one top plate and a second surface of at least one block.   
     
     
         9 . The method of  claim 8 , wherein the high-elongation adhesive comprises a comprising silyl modified polymer. 
     
     
         10 . The method of  claim 8  wherein the silyl-modified polymer comprises silyl-modified polyethers and/or silyl modified polyurethanes. 
     
     
         11 . The method of  claim 10 , wherein the high-elongation adhesive comprises a silyl modified polyether. 
     
     
         12 . The method of  claim 10 , wherein the high-elongation adhesive comprises an amino silane. 
     
     
         13 . The method of  claim 8 , wherein said block comprises wood. 
     
     
         14 . The method of  claim 8 , further comprising a second block affixed to a second side of said rafter and the top of said top plate, wherein said second block is affixed to said rafter and said top plate by high-elongation adhesive.