Reinforced sheathing material for wall construction

• US 4,866,897 A
• Filed: 04/24/1987
• Issued: 09/19/1989
• Est. Priority Date: 04/24/1987
• Status: Expired due to Fees

• Current Assignee: Fortifiber Corporation
• Original Assignee: Fortifiber Corporation
• Inventors: Yount, Stanley G.
• Primary Examiner(s): Safavi, Michael
• Application Number:
  US07/042,021
• Time in Patent Office: 879 Days
• Field of Search: 52/363, 52/362, 52/361, 52/344, 52/105, 428/294
• US Class Current: 52/363
• CPC Class Codes: B32B 21/047 of foam
• CPC Class Codes: B32B 2260/028 Paper layer
• CPC Class Codes: B32B 2260/042 Bituminous or tarry substance
• CPC Class Codes: B32B 2317/122 Kraft paper
• CPC Class Codes: B32B 2607/00 Walls, panels
• CPC Class Codes: B32B 29/007 next to a foam layer
• CPC Class Codes: B32B 29/02 next to a fibrous or filamentary layer
• CPC Class Codes: E04F 13/04 Bases for plaster sub-ceilings with plaster-carrying means E04B9/06
• CPC Class Codes: Y10T 442/191 Inorganic fiber-containing scrim
• CPC Class Codes: Y10T 442/195 Including a foam layer
• CPC Class Codes: Y10T 442/198 Coated or impregnated
• CPC Class Codes: Y10T 442/2738 Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith

Abstract

A reinforced composite sheathing paper for use in wall construction between interior framing and exterior materials such as stucco in which a backing sheet of asphalt saturated kraft paper is provided on the interior surface with a plurality of reinforcing bands extending for the length of the paper in spaced parallel relation, each band including a plurality of fiberglass yarns, a thermoplastic adhesive coating each of said yarns and bonding each yarn to said interior side surface whereby each of said bands reinforces said kraft paper and minimizes deflection of said paper during application of stucco to the exterior surface of the sheathing paper. A method of preparing a wall frame construction for application of exterior stucco material including the step of wrapping in one operation the wall frame construction with a longitudinally reinforced backing sheet including reinforcing bands and securing the backing sheet to the studs of the wall frame construction. A composite sheathing paper as mentioned above including scrim fabric bonded to the exterior surface of the sheathing paper at spaced intervals opposite said reinforcing bands.

Claims

1. In a wall construction including wall framing having interior support means and an exterior weather resistant material, the combination of:

a backing sheet of asphalt saturated kraft paper having selected length, width and an interior side surface adapted to face said interior support means and having an exterior side surface;

reinforcing bands, each band being of selected width and including a plurality of yarns, extending for the length of the sheet in spaced parallel relation and bonded to said interior side surface and adapted to be horizontally disposed when installed on said interior support means;

a thermoplastic adhesive coating each yarn of a band and bonding said yarn to said interior rise surface,

said yarn of each band lying in a common plane parallel to said interior side surface,

whereby each band reinforces said kraft paper and minimizes deflection of said backing sheet during application of stucco to said exterior side surface of the sheathing paper,

reference lines, each of approximately the same width as one of said bands, applied to said exterior side surface of said backing sheet in parallel and opposite relation to said reinforcing bands on said interior side surface;

and staple means for attaching said composite sheathing paper to said wall framing,

said staple means having a span to extend transversely over the width of a reinforcing band to secure each yarn of a band and penetrating said wall framing adjacent opposite longitudinal edges of each of said bands whereby said paper is secured to said framing means at areas of maximum strength.

2. A wall construction as claimed in claim 1 including

a scrim fabric of fiberglass filaments having substantially said same length and width as said backing sheet and extending along the exterior side surface of said sheet;

and means for permanently attaching said scrim fabric to said exterior side surface of said sheet;

said attachment means including globules of adhesive means contacting said scrim fabric and said backing sheet at spaced intervals opposite to said reinforcing bands and along said reference lines whereby said backing sheet and said scrim fabric may be simultaneously fastened to said interior support means and whereby said scrim fabric may be embedded in said exterior material between said globules of adhesive means for reinforcement of said exterior material.

3. A wall construction as claimed in claim 1 including

rigid insulation foam material applied exteriorly of said framing;

said foam material including an outer surface;

and means for attaching said backing sheet to the outer surface of said foam material and to said framing.