Recreational vehicle roofing coating
AssigneeTremco Incorporated
InventorsJames Hubert Dunaway, Christopher Angelo DelaCruz, Craig Anthony Erichsen
Life of this patent
Estimating the term…
Abstract
Recreational vehicle roofing coatings, recreational vehicle roofs, recreational vehicles, and methods of waterproofing recreational vehicle roofs are provided. The recreational vehicle roofs have polyurethane coatings that are single layer coatings that form waterproofing membranes on the recreational vehicle roof. The coatings can be applied to a recreational vehicle roof before or after the installation of the roof on the vehicle.
Claims15
A recreational vehicle roof comprising a layer of a rigid non-waterproof material, at least a portion of the layer having a coating formed from a solvent based polyurethane:
- exhibiting an elongation at break of at least about 50%;
- wherein the polyurethane coating forms a waterproof membrane capable of stopping the transfer of water vapor, having a thickness of at least 10 mils.
A recreational vehicle roof comprising a layer of a rigid non-waterproof material, at least a portion of the layer having a coating formed from a solvent free polyurethane:
- exhibiting an elongation at break of at least about 50%;
- wherein the polyurethane coating forms a waterproof membrane capable of stopping the transfer of water vapor, having a thickness of at least 10 mils.
A recreational vehicle roof comprising a layer of a rigid non-waterproof material, at least a portion of the layer having a coating formed from a water based polyurethane
- exhibiting an elongation at break of at least about 50%;
- wherein the polyurethane coating forms a waterproof membrane capable of stopping the transfer of water vapor, having a thickness of at least 10 mils.
A recreational vehicle, comprising:
- a vehicle body;
- and
- a roof on at least a portion of said vehicle body, wherein the roof or portion thereof is made from a layer of non-waterproof material and at least a portion of the layer is coated with a substantially waterproof polyurethane coating, wherein:
- the polyurethane coating comprises a single layer coating that forms a waterproofing membrane;
- the polyurethane coating has a thickness of at least 10 mils;
- the polyurethane coating has an elongation at break of at least about 50%;
- and
- the polyurethane coating has a Shore A hardness of about 50 to about 90;
- and
- wherein the portion of the recreational vehicle roof that is coated by the polyurethane coating is substantially waterproof.
A method of waterproofing a recreational vehicle roof comprising a layer of a rigid non-waterproof material, the method comprising:
- applying a single coating of a polyurethane exhibiting an elongation at break of at least 50% to at least a portion of the layer of rigid non-waterproof material to form a waterproof membrane at least 10 mils thick on the layer of rigid non-waterproof material, wherein the waterproof membrane is capable of stopping the transfer of water vapor, and disposed such that the waterproof membrane is directly exposed to the atmosphere outside of the recreational vehicle roof;
- subsequently forming at least one opening in the recreational vehicle roof, and
- installing the recreational vehicle roof on a recreational vehicle.
A method of waterproofing a recreational vehicle roof comprising a layer of a rigid non-waterproof material, the method comprising:
- forming at least one opening in the recreational vehicle roof;
- subsequently applying a single coating of a polyurethane exhibiting an elongation at break of at least 50% to at least a portion of the layer of rigid non-waterproof material to form a waterproof membrane at least 10 mils thick on the layer of rigid non-waterproof material, wherein the waterproof membrane is capable of stopping the transfer of water vapor, and disposed such that the waterproof membrane is directly exposed to the atmosphere outside of the recreational vehicle roof;
- and
- installing said recreational vehicle roof on a recreational vehicle.
A method of waterproofing a recreational vehicle roof containing a layer of a rigid non-waterproof material, the method comprising:
- mixing a first part of a polyurethane composition with a second part of a polyurethane composition to form a mixture, wherein the polyurethane within the mixture exhibits an elongation at break of at least 50%;
- applying the mixture using a method selected from spraying, troweling, rolling, and knifing, wherein the mixture is applied to at least a portion of the layer of rigid non-waterproof material to form a waterproof membrane at least 10 mils thick on the layer of rigid non-waterproof material, wherein the waterproof membrane is capable of stopping the transfer of water vapor;
- and
- allowing the mixture to cure.
Dependencies are inferred from the claim text.