Systems and methods for drying roofs

• US 10,060,641 B2
• Filed: 02/19/2016
• Issued: 08/28/2018
• Est. Priority Date: 02/25/2015
• Status: Active Grant

• Current Assignee: Legend Brands, Inc. (RPM International Incorporated)
• Original Assignee: Dri-Eaz Products Incorporated (RPM International Incorporated)
• Inventors: Burton, Brandon, Bruders, William, Bartholmey, Brett
• Primary Examiner(s): Glessner, Brian E
• Assistant Examiner(s): Kenny, Daniel J
• Application Number:
  US15/048,881
• Publication Number:
  US 20160244962A1
• Time in Patent Office: 921 Days
• Field of Search: 34443, 34467, 34472, 34474, 34507
• CPC Class Codes: E04D 13/00 Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights ventilation tiles E04D1/30; ventilation slabs E04D3/40; internal channels E04F17/00
• CPC Class Codes: E04D 15/00 Apparatus or tools for roof working
• CPC Class Codes: E04G 23/0281 Repairing or restoring roofing or roof covering roof covering E04D3/00
• CPC Class Codes: F24F 2013/221 to avoid the formation of condensate, e.g. dew
• CPC Class Codes: F24F 7/025 with forced air circulation by means of a built-in ventilator
• CPC Class Codes: Y02B 10/20 Solar thermal

Abstract

Roof drying processes and associated systems. A representative process includes drawing moisture-laden air from within the internal structure of a roof via a vacuum blower, a extraction insert and an extraction manifold, and removing moisture from the moisture-laden air via a dehumidifier. The dry air can be directed back into the roof through an injection insert and an injection manifold.

Claims

1. A method for drying a roof structure, comprising:

positioning an extraction insert in a first hole in the roof structure;

positioning an injection insert in a second hole in the roof structure;

coupling at least one of the extraction insert and the injection insert to be in fluid communication with an air mover;

placing a cover over the injection insert to form a plenum in fluid communication with the injection insert;

securing the cover to the roof structure with a retainer, with the injection insert passing through a hole in the retainer;

activating the air mover to remove moisture from within the roof structure; and

directing air into the roof structure via the injection insert and the plenum.

2. The method of claim 1, further comprising coupling a water separator to be in fluid communication with the extraction insert, and wherein removing moisture includes separating water from a flow of fluid removed from within the roof structure by the air mover.

3. The method of claim 1, wherein the air mover includes a vacuum blower in fluid communication with the extraction insert.

4. The method of claim 1, further comprising coupling a dehumidifier in fluid communication with the extraction insert, and wherein removing moisture includes removing water vapor from a flow of fluid removed from within the roof structure by the air mover.

5. The method of claim 4, further comprising coupling the dehumidifier between the extraction insert and the injection insert to remove water vapor from the fluid removed via the extraction insert, and direct air to the injection insert.

6. The method of claim 1, wherein positioning the extraction insert includes positioning the extraction insert in a fiber board layer of the roof by passing a portion of the extraction insert through a membrane layer of the roof.

7. A method for drying a roof structure, comprising:

positioning an injection insert in the roof structure;

placing a cover over the injection insert in the roof structure;

securing the cover to the roof structure with a retainer, wherein positioning the injection insert includes positioning the injection insert through a hole in the retainer;

drawing moisture-laden air from within the roof structure via a vacuum blower and an extraction insert;

directing the moisture-laden air to a water separator;

removing a first portion of moisture from the moisture-laden air at the water separator;

directing the moisture-laden air from the water separator to a dehumidifier;

removing a second portion of moisture from the moisture-laden air at the dehumidifier to form a flow of dried air; and

directing at least some of the dried air into the roof structure through the injection insert.

8. The method of claim 7, further comprising adjusting a position of the injection insert inside the roof structure so as to selectively direct air to at least one of a corrugated steel layer of the roof, an insulation layer of the roof, and a fiber board layer of the roof.

9. The method of claim 7, further comprising:

measuring a moisture level of the moisture-laden air and the dried air;

removing the injection insert and the extraction insert from the roof in response to the moisture level of the moisture-laden air being lower than a threshold level; and

applying a sealant to the roof after removing the injection insert and the extraction insert from the roof.

10. The method of claim 7, further comprising:

measuring a first flow volume passing through the vacuum blower;

measuring a second flow volume passing through the dehumidifier; and

balancing the first flow volume and the second flow volume.

11. A method for drying a roof structure, comprising:

positioning multiple extraction inserts in corresponding first holes in the roof structure;

coupling the extraction inserts to a manifold;

coupling the manifold to an air mover;

positioning multiple injection inserts in corresponding second holes in the roof structure;

placing a cover over the multiple injection inserts;

securing the cover to the roof structure with a retainer, wherein positioning the multiple injection inserts includes positioning the multiple injection inserts through a hole in the retainer;

directing a flow of air into a plenum between the cover and the roof structure; and

activating the air mover to remove moisture from within the roof structure.

12. The method of claim 11, further comprising coupling a dehumidifier to at least one of the plenum and the manifold.

13. The method of claim 12, wherein coupling the dehumidifier includes coupling the dehumidifier between the plenum and the manifold, and wherein the method further comprises activating the dehumidifier to withdraw moisture from a flow of fluid removed from the roof structure by the air mover, and direct at least a portion of the flow into the roof structure via the plenum.

14. The method of claim 11, further comprising heating the plenum with solar radiation absorbed by the cover.

15. A system for drying a roof structure, comprising:

at least one extraction insert having at least one entrance opening positioned to receive a flow of moist air from within the roof structure, and at least one exit opening positioned to deliver the flow of moist air;

at least one injection insert, having at least one entrance opening positioned to receive a flow of dry air and at least one exit opening positioned to deliver the flow of dry air to the roof structure; and

an air mover coupleable to at least one of the at least one extraction insert and the at least one injection insert to remove moisture from the roof;

wherein at least one of the at least one extraction insert and the at least one injection insert includes a body having multiple spreadable portions.

16. A system for drying a roof structure, comprising:

a plurality of extraction inserts, with individual extraction inserts having at least one entrance opening positioned to receive a flow of moist air from within the roof structure, and at least one exit opening positioned to deliver the flow of moist air;

an extraction manifold coupleable to the plurality of extraction inserts;

a plurality of injection inserts, with individual injection inserts having at least one entrance opening positioned to receive a flow of dry air and at least one exit opening positioned to deliver the flow of dry air to the roof structure;

a cover positioned over the injection inserts to form a plenum below the cover and above a surface of the roof structure;

an air mover coupled to the extraction manifold to remove a flow of moist air from the roof; and

a retainer positioned to secure the cover to the roof, and wherein at least one of the extraction inserts extends through the retainer.

17. The system of claim 16, further comprising a dehumidifier coupleable to the extraction manifold to remove moisture from the moist air.

18. The system of claim 16, further comprising a dehumidifier coupleable to an injection manifold coupled to the plurality of injection inserts to remove moisture from air directed to the injection manifold.

19. The system of claim 16 wherein the cover has a dark, solar-radiation-absorptive color.