Tiffany Haney
RedGard is a waterproofing product that can be used on shower pans as an alternative to a regular pan membrane. It is approved as a shower pan liner and can be used in lieu of a plastic vapour membrane in places like shower niches and concrete walls in basements. It is also used as a second waterproofing layer on shower pans. However, it is not suitable for use on all surfaces, such as concrete or fiberglass shower walls, and it is important to follow the manufacturer's instructions for installation.
| Characteristics | Values |
|---|---|
| Can RedGard be used as a shower pan liner? | Yes, RedGard is approved as a shower pan liner. |
| Does it need to be used with a PVC liner? | It can be used without a PVC liner, but some choose to use both for added protection. |
| How many coats are required? | Two coats of RedGard are needed, with three coats in the corners. |
| How much area does one gallon of RedGard cover? | One gallon of RedGard covers approximately 124 to 140 sq ft. |
| Does it need to be diluted? | It is recommended to dilute the first coat with water (4 parts water to 1 part RedGard) for better penetration. |
| Can it be used on concrete? | While some have used it on concrete, others have experienced issues with bonding and recommend against it. |
| Can it be used on tile? | Yes, it can be used on tile. |
| Can it be used on fiberglass? | No, it cannot be used on fiberglass. |
| Can it be used on foam? | Yes, it can be used on foam with a thinset. |
| Can it be used on wood? | Yes, but it may not provide enough protection against expansion and contraction. |
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What You'll Learn
RedGard is approved as a shower pan liner
RedGard is a versatile product that can be used for waterproofing shower pans instead of a regular pan membrane. It is approved as a shower pan liner, and one gallon of the product can cover approximately 124 to 140 sq ft. It is important to follow the manufacturer's instructions for installation, which include applying two coats of RedGard with fibre tape and mesh mat around the drain.
RedGard can be used as a waterproofing layer on top of a cement shower pan or concrete slope, but it is important to ensure that the surface is properly prepared. For example, when applying RedGard to a concrete slope, it is recommended to wait at least 28 days after the concrete has been installed before applying the product. Additionally, a diluted first coat of RedGard (4 parts water to 1 part RedGard) will help it penetrate more effectively.
It is worth noting that some people choose to use a PVC liner or another type of shower pan liner in addition to RedGard as a redundancy or secondary waterproofing layer. This can help prevent water from being trapped between the two liners, which could potentially cause issues like mould. However, as long as the RedGard is properly applied and there are no pinholes, it can be an effective waterproofing solution for shower pans.
While RedGard is approved for use as a shower pan liner, it is not suitable for all surfaces. For example, it should not be applied directly to wood as it does not provide enough protection against expansion and contraction. Additionally, it is not recommended for use on fiberglass or acrylic shower walls, as the existing surface must be torn out before applying RedGard.
Overall, RedGard is a reliable and effective option for waterproofing shower pans, but it is important to follow the manufacturer's instructions and properly prepare the surface to ensure the best results.
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It can be used as waterproofing on shower pans
RedGard is a waterproofing product that can be used on shower pans. It is approved as a shower pan liner and can be used in place of a regular pan membrane.
When using RedGard on a shower pan, it is important to follow the manufacturer's instructions carefully. It is recommended to apply two coats of RedGard, with the first coat diluted with water (4 parts water to 1 part RedGard) to ensure it fully penetrates the surface. Additionally, it is crucial to properly cover the drain sides with RedGard and check for pinholes after each coat.
RedGard can be used as waterproofing on various surfaces, including concrete slopes and DensShield wallboards. However, it may not bond well with concrete, as some users have experienced peeling. It is always advisable to perform a spot test before proceeding with a full application.
RedGard is also suitable for use in shower niches, concrete walls in basements, and other areas where it is challenging to install a plastic vapour membrane behind the backer boards. It serves as an effective waterproofing solution in such locations.
While RedGard offers waterproofing capabilities, it is important to note that it should not be used as the sole waterproofing layer in a shower. It is typically used in conjunction with other waterproofing measures, such as a PVC liner or a pre-slope, to ensure proper water management and prevent issues like mould or mildew.
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It can be used with a pre-slope to avoid water tension
RedGard is a waterproofing product that can be used on shower pans instead of a regular pan membrane. It is approved as a shower pan liner and can be used to build a shower pan.
RedGard can be used with a pre-slope to avoid water tension. Water tension occurs when water is inadvertently trapped due to capillary action, such as when the top end of a straw full of liquid is blocked. In the context of a shower, water tension can be avoided by ensuring that water can travel through the mortar bed, hit the PVC liner, and work its way to the weep holes.
A pre-slope is important to ensure that water does not get trapped and can properly drain. By creating a pre-slope, any water that may get through will still be able to reach the weep holes in the base of the drain. This is especially important if you are using the PVC liner method.
When using RedGard with a pre-slope, it is recommended to use an embedded fiber cloth to add strength and thickness to the application. The fiber cloth helps to prevent the crushing or separation of the thin RG membrane, which can occur without the added support.
It is important to follow the manufacturer's instructions when using RedGard. For example, it is recommended to dilute the first coat with water (4 parts water to 1 part RedGard) to ensure better penetration into a gypsum underlayment. Additionally, always perform a floor test once RedGard has dried before tiling to check for any leaks.
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It can be used on a concrete slope
RedGard is a waterproofing product that can be used on shower pans instead of a regular pan membrane. It can be used on a concrete slope, but it is important to follow the manufacturer's instructions and wait at least 28 days after the concrete is installed before applying it. One gallon of RedGard covers approximately 124 to 140 sq ft, and two applications are needed to build a shower pan. It is recommended to dilute the first coat with water (4 parts water to 1 part RedGard) for better penetration into a gypsum underlayment.
When using RedGard on a concrete slope, it is essential to ensure proper drainage to avoid trapping water. This can be achieved by installing a pre-slope and a PVC liner to guide water towards the drain and prevent water tension or capillary action. The pre-slope is crucial to prevent mildew issues and ensure that any water that penetrates through the tile or grout can still reach the weep holes in the base of the drain.
To use RedGard effectively on a concrete slope, it is recommended to coat the slope with two heavy coats of RedGard, paying special attention to the drain sides and corners, which should receive three coats. Checking for pinholes on each coat is important to prevent water penetration. Additionally, consider using an embedded fibre cloth with RedGard to add strength and thickness, especially where the RG bridges from the pre-slope to the flange face.
RedGard is an approved shower pan liner and can be an effective waterproofing solution for concrete slopes in shower installations. However, it is important to follow the instructions and take the necessary precautions to ensure proper drainage and avoid any water-related issues.
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It can be used on a cement shower pan
RedGard can be used on a cement shower pan. It is a versatile product that can be used for waterproofing shower pans instead of a regular pan membrane. It is approved as a shower pan liner and can be used to create a nice shower pan.
When using RedGard on a cement shower pan, it is important to follow the manufacturer's instructions carefully. It is recommended to apply two coats of RedGard, with the first coat being diluted with water (4 parts water to 1 part RedGard) to ensure it fully penetrates the surface. A floor test is also advised once the RedGard has dried before tiling—plug the drain, fill the pan with water, and wait 24 hours to check for any leaks.
Additionally, proper preparation of the cement shower pan is crucial. One source mentions that RedGard did not bond well with concrete, so it is essential to follow the recommended waiting period of 28 days after concrete installation before applying RedGard. Another important consideration is the use of an embedded fibre cloth to strengthen and thicken the RedGard application, especially where the RG bridges from the pre-slope to the flange face.
RedGard can also be used in conjunction with other waterproofing methods. Some users opt for a pre-slope, a sheet lining, and a mortar bed coated with RedGard. However, this method can cause water to build up between the liners, potentially leading to black mold. Therefore, it is crucial to ensure proper drainage and ventilation to avoid trapping water.
Overall, RedGard is a reliable option for waterproofing a cement shower pan, but careful installation and consideration of the specific product specifications are necessary to ensure optimal results.
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Frequently asked questions
Yes, RedGard is approved as a shower pan liner.
It is possible to use RedGard without a PVC liner, but it is important to ensure that water can travel through the mortar bed and to the weepholes.
The process involves applying two applications of RedGard with fibre tape and mesh mat around the drain, followed by a floor test to check for leaks before tiling.
While RedGard can be used on concrete, it is recommended to wait at least 28 days after the concrete has been installed before applying it.
No, RedGard cannot be used on fiberglass or acrylic walls.
