Roofing composite including dessicant and method of thermal energy management of a roof by reversible sorption and desorption of moisture
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04D-005/10
E04D-013/16
E04D-005/12
E04D-012/00
출원번호
US-0802391
(2015-07-17)
등록번호
US-9695592
(2017-07-04)
발명자
/ 주소
Shiao, Ming-Liang
Yuan, Sam
Toas, Murray S.
Jacobs, Gregory F.
출원인 / 주소
CERTAINTEED CORPORATION
대리인 / 주소
Abel Law Group, LLP
인용정보
피인용 횟수 :
0인용 특허 :
100
초록▼
A roof system is secured to a roof deck on a building. The roof system has a thermal energy absorbing product including a desiccant located between the roof deck and a roof barrier. The desiccant reversibly absorbs moisture, and in response thereto, heat is released and absorbed by the desiccant to
A roof system is secured to a roof deck on a building. The roof system has a thermal energy absorbing product including a desiccant located between the roof deck and a roof barrier. The desiccant reversibly absorbs moisture, and in response thereto, heat is released and absorbed by the desiccant to effect a thermal management of the roof system.
대표청구항▼
1. A method of managing thermal energy in a roof of a building, comprising: providing a roof having a roof deck, a roof barrier and a roof product with a desiccant located between the roof deck and roof barrier, wherein the desiccant is disposed in an open structure with surface area within the roof
1. A method of managing thermal energy in a roof of a building, comprising: providing a roof having a roof deck, a roof barrier and a roof product with a desiccant located between the roof deck and roof barrier, wherein the desiccant is disposed in an open structure with surface area within the roof product to readily allow moisture transfer, further wherein the roof product comprises an upper radiant barrier and a lower moisture barrier, such that the roof product comprises the only material located between the roof deck and the roof barrier;ventilating the roof product with air having humidity, wherein the air reversibly transports moisture to and from the desiccant;reversibly adsorbing moisture from the air with the desiccant and releasing thermal energy into the building during a cooling cycle;reversibly releasing moisture with the desiccant and absorbing thermal energy during a heating cycle; andeffecting thermal management of the roof by releasing and absorbing thermal energy with the desiccant. 2. A method according to claim 1, further comprising providing the roof product with at least one of an additive, a fire retardant, an anti-microbial addition, a UV stabilizer, a UV protection layer, or any combination thereof. 3. A method according to claim 1, further comprising providing the roof product with a skin layer adjacent the desiccant, and the skin layer has a moisture permeability of greater than 2 perm. 4. A method according to claim 1, further comprising regulating at least 20% of solar energy incident on the roof product. 5. A method according to claim 1, further comprising providing the desiccant with a heat of absorption greater than about 30 kJ/mol-H2O, and a heat absorbing range of about 10° C. to about 50° C. 6. The method of claim 1, wherein the roof product comprises a roll of material, and providing the roof comprises unrolling the material into a flat configuration. 7. The method of claim 1, wherein the desiccant comprises a sheet form. 8. The method of claim 1, wherein ventilation of the roof product is provided by ventilation channels that comprise carriers and structural layers for the desiccant. 9. The method of claim 1, wherein the roof product comprises a length, a width, a thickness, a surface area of the roof product is defined by the length and the width, and the desiccant is dispersed over substantially an entire surface area of the roofing product. 10. The method of claim 1, wherein the desiccant is disposed in a honeycomb sheet. 11. A method of managing thermal energy in a roof of a building, comprising: providing a roof having a roof deck, a roof barrier and a roof product with a desiccant located between the roof deck and roof barrier, wherein the roof product comprises a length, a width, a thickness, a surface area of the roof product is defined by the length and the width, and the desiccant is dispersed over substantially an entire surface area of the roofing product, further wherein the roof product comprises a roll of material, and providing the roof comprises unrolling the material into a flat configuration;ventilating the roof product with air having humidity, wherein the air reversibly transports moisture to and from the desiccant;reversibly adsorbing moisture from the air with the desiccant and releasing thermal energy into the building during a cooling cycle;reversibly releasing moisture with the desiccant and absorbing thermal energy during a heating cycle; andeffecting thermal management of the roof by releasing and absorbing thermal energy with the desiccant. 12. The method of claim 11, wherein the desiccant comprises a sheet form. 13. The method of claim 11, wherein ventilation of the roof product is provided by ventilation channels that comprise carriers and structural layers for the desiccant. 14. The method of claim 11, wherein the desiccant is disposed in an open structure with surface area to readily allow moisture transfer. 15. The method of claim 11, wherein the desiccant is disposed in a honeycomb sheet. 16. A method of managing thermal energy in a roof of a building, comprising: providing a roof having a roof deck, a roof barrier and a roof product with a desiccant located between the roof deck and roof barrier, wherein the roof product comprises a length, a width, a thickness, a surface area of the roof product is defined by the length and the width, and the desiccant is in a sheet form and dispersed over substantially an entire surface area of the roofing product, further wherein the roof product comprises an upper radiant barrier and a lower moisture barrier, such that the roof product comprises the only material located between the roof deck and the roof barrier;ventilating the roof product with air having humidity, wherein the air reversibly transports moisture to and from the desiccant;reversibly adsorbing moisture from the air with the desiccant and releasing thermal energy into the building during a cooling cycle;reversibly releasing moisture with the desiccant and absorbing thermal energy during a heating cycle; andeffecting thermal management of the roof by releasing and absorbing thermal energy with the desiccant. 17. The method of claim 16, wherein the roof product comprises a roll of material, and providing the roof comprises unrolling the material into a flat configuration, and the desiccant is disposed in an open structure with surface area to readily allow moisture transfer. 18. The method of claim 16, wherein the desiccant is disposed in a honeycomb sheet.
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