Sound control system for steel roof decks
AssigneeLoadmaster Systems, Inc.
InventorsC. Lynn Nurley, Robert G. Jones, Jr., Joseph B. Shepard
Life of this patent
Estimating the term…
Abstract
A steel roof deck diaphragm to provide structural rigidity to a building wherein loads of varying intensity can cause movement of structural members, which tends to generate noise when two members rub or work against each other. Corrugated sheets of high tensile steel are supported from below and span the distance between purlins, the corrugated sheets having over-lapping side edges and end edges and upper and lower surfaces. Non-metallic strips of felt form spacers positioned between the over-lapping side edges and end edges to prevent generation of noise resulting from relative movement of the corrugated sheets.
Claims20
A steel roof deck diaphragm to provide structural rigidity to a building wherein loads of varying intensity can cause movement of structural members, which tends to generate noise when two members rub or work against each other, the roof deck comprising:
- purlins spaced apart a predetermined distance to form spans;
- corrugated sheets of steel supported from below and spanning the distance between said purlins, said corrugated sheets having overlapping side edges and end edges and upper and lower surfaces;
- spacer means between said overlapping side edges and end edges, said spacer means being configured to vertically space said upper and lower surfaces to prevent generation of noise resulting from relative movement of the corrugated sheets;
- and
- fastener means for securing said overlapping side edges and for securing said overlapping end edges.
A roof deck assembly comprising:
- (a) spaced horizontally disposed roofjoists;
- (b) a corrugated sheet of material, said corrugated sheet having a plurality of spaced ribs alternating above the neutral axis forming compression ribs and below the neutral axis forming tension ribs, said spaced ribs extending longitudinally of said corrugated sheet and said corrugated sheet being supported on said roof joists;
- (c) a layer of thermal insulation superposed over said corrugated sheet;
- (d) a sheet of resilient sound deadening material between said corrugated sheet and said thermal insulation;
- and
- (e) means to secure said layer of thermal insulation to said compression ribs, said means having a longitudinal extent extending through said layer of insulation and capturing said sheet of sound deadening material between said layer of thermal insulation and said corrugated sheet.
A roof deck assembly comprising:
- spaced steel purlins having upper surfaces;
- a rigid steel deck spanning between said spaced steel purlins, said steel deck being formed of a plurality of sheets, each sheet having side edges, end edges and upper and lower surfaces;
- non-metallic sound deadening material;
- and
- means securing said steel deck to said steel purlins, such that said non-metallic sound deadening material is positioned between upper surfaces on said steel purlins and lower surfaces on said steel sheets.
A method of forming a deck comprising the steps of:
- positioning sound deadening material between steel supporting members and steel sheets;
- and
- securing the steel sheets to the supporting members such that upon movement of the steel sheet relative to the supporting structure the sound deadening material is maintained in a position to prevent generation of popping sounds upon movement of surfaces on the sheet relative to the supporting structure.
Dependencies are inferred from the claim text.