Interlocking laminated structural roofing panels
US-2021301534-A1 · Sep 30, 2021 · US
Roofing systems and methods
US9909317B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9909317-B2 |
| Application number | US-201615193729-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 27, 2016 |
| Priority date | Nov 9, 2004 |
| Publication date | Mar 6, 2018 |
| Grant date | Mar 6, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
According to one aspect, a roofing system comprises a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation. Each of the plurality of insulation boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of insulation boards comprises polyisocyanurate foam having a first polyisocyanurate foam density. The roofing system further comprises a plurality of cover boards adapted for overlying the layer of insulation. Each of the plurality of cover boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of cover boards comprises polyisocyanurate foam having a second polyisocyanurate foam density greater than the first polyisocyanurate foam density. The greater polyisocyanurate foam density provides for a compressive strength to resist deformation.
First claim
Opening claim text (preview).
What is claimed is: 1. A roofing system, comprising: a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation, each of the plurality of insulation boards having opposing planar surfaces and having a facer on at least one planar surface, and said each of the plurality of insulation boards comprising polyisocyanurate foam having a first polyisocyanurate foam density; and a plurality of cover boards adapted for overlying the layer of insulation, each of the plurality of cover boards having opposing planar surfaces and having a facer on at least one planar surface, and said each of the plurality of cover boards comprising polyisocyanurate foam having a second polyisocyanurate foam density greater than the first polyisocyanurate foam density, which greater polyisocyanurate foam density provides for a compressive strength to resist deformation. 2. The roofing system of claim 1 , wherein the second polyisocyanurate foam density is between 6 lbs/ft 3 and 25 lbs/ft 3 . 3. The roofing system of claim 1 , wherein the second polyisocyanurate foam density is between 4 lbs/ft 3 and 25 lbs/ft 3 . 4. The roofing system of claim 1 , wherein the first polyisocyanurate foam density is less than 4 lbs/ft 3 . 5. The roofing system of claim 1 , wherein the first polyisocyanurate foam density is between about 1 lbs/ft 3 and about 3 lbs/ft 3 . 6. The roofing system of claim 1 , wherein the facers comprise glass fiber. 7. The roofing system of claim 1 , wherein each of the plurality of cover boards is bonded to a respective one of the plurality of insulation boards to form a roofing panel composite. 8. The roofing system of claim 1 , further comprising a waterproofing membrane adapted for overlying the layer of cover boards.
Assignees
Inventors
Classifications
- E04D3/351Primary
at least one of the layers being composed of insulating material, e.g. fibre or foam material · CPC title
Composite having voids in a component [e.g., porous, cellular, etc.] · CPC title
Glass fibres · CPC title
With nonvoid component of specified composition · CPC title
Roofs, roof membranes · CPC title
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Frequently asked questions
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- What does patent US9909317B2 cover?
- According to one aspect, a roofing system comprises a plurality of insulation boards adapted for overlying a roof deck to form a layer of insulation. Each of the plurality of insulation boards has opposing planar surfaces and has a facer on at least one planar surface, and each of the plurality of insulation boards comprises polyisocyanurate foam having a first polyisocyanurate foam density. Th…
- Who is the assignee on this patent?
- Johns Manville
- What technology area does this patent fall under?
- Primary CPC classification E04D3/351. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 06 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).