E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
E04H 9/14 (2006.01) E04B 7/02 (2006.01) E04D 15/00 (2006.01) E04G 23/02 (2006.01)
Patent
CA 2219496
A method of reinforcing or retrofitting building roof structures against hurricane-force winds which does not require removal of part or all of the roof. The improved method includes directing a thin stream of a liquid polymer foam adhesive under pressure upwardly along the intersections of the rafters or support members and the roof panels, preferably on both sides of the support members. The foam adhesive then creams and foams, forming polymer foam adhesive gussets which firmly adhere to the adjacent surfaces of the support members and roof panels. This method increases the pull-off strength of a roof about seven fold and is able to withstand hurricane-force winds.
Méthode de renforcement ou de réfection de structures de toits de bâtiments ne nécessitant pas l'enlèvement de la toiture, ni en partie ni en totalité, et destinée à rendre les toits aptes à résister aux ouragans. Cette méthode comprend l'application d'un fin jet d'adhésif en mousse de polymère liquide sous pression, vers le haut, le long des intersections des fermes et des éléments de support de toit et des panneaux de toit, de préférence sur les deux cotés des éléments de support. L'adhésif en mousse forme des goussets adhésifs en mousse de ploymère qui adhèrent fermement aux surfaces adjacentes des éléments de support et des panneaux de toit. Cette méthode a pour effet de multiplier par sept, environ, la résistance à l'arrachement du toit et permet à ce dernier de résister à des vents d'ouragan.
Kish Frederick A.
Merser N. Keith
Finlayson & Singlehurst
Illinois Tool Works Inc.
Itw Foamseal A. Division Of Paslode Corporation
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