What Does Hot Mop Do (Explained)
Uh-oh! Imagine you’re in the middle
of a bathroom remodel, and the
contractor suddenly asks, “Do you
want to go with a hot mop for your
shower?” You’re standing there,
wondering what on earth a hot mop
even is. Don’t worry—you’re not alone.
Let’s break down this concept and
explore what hot mopping entails.
The Hot Mop Process
What is It?
A hot mop is a method used to waterproof
shower pans, mainly in tiled showers.
It involves applying layers of hot tar
and roofing felt to create a water-tight
seal. Sounds intense, right? But it’s a
proven technique that keeps water from
seeping into your home’s structure.
Materials and Tools Needed
Before diving into the hot mop process,
here’s what you’ll need:
- Hot tar (asphalt)
- Roofing felt (tar paper)
- Mop head or applicator
- Gloves and protective gear
- Safety goggles
- Utility knife
- Metal flashing
Preparation Steps
- Gather Materials: Make sure you
have everything from the list above.
It’s frustrating to start and then
realize you’re missing something. - Clear the Area: The shower pan
should be clean and free of debris.
Any dirt can interfere with the tar’s
adhesion. - Wear Protective Gear: Hot tar is,
well, hot! Wear gloves, goggles, and
old clothing you don’t mind getting messy.
Step-by-Step Guide
1. Preparing the Shower Pan
- Level the Surface: Ensure the base is
even. A smooth surface allows the tar to
adhere better. - Install Metal Flashing: Place it around
the perimeter for extra protection against
water leaks.
2. Applying Roofing Felt
- Cut Felt to Size: Measure your shower
pan and cut the roofing felt accordingly. - Layer the Felt: Start with one layer of
felt, ensuring it covers all areas of the
pan. Overlap each piece by at least 2 inches.
3. Heating and Applying Tar
- Heat the Tar: Use a tar kettle or a safe
heating method to melt the tar until it’s liquid. - Apply First Layer: Carefully pour or mop
the hot tar over the first layer of felt. - Add More Layers: Place another layer of
felt on top of the tar while it’s still warm.
Repeat until you have three layers of felt
and tar.
4. Final Sealing
- Double Check Coverage: Ensure every area
is covered with no gaps or thin spots. - Smooth Out Bubbles: Use your mop or tool
to smooth out any bubbles or irregularities.
Common Mistakes to Avoid
- Skipping Protective Gear: Burns from hot
tar are serious. Always wear protective clothing. - Thin Layers: Applying too thin a layer can
lead to leaks. Ensure each layer is thick enough. - Uneven Surface: An uneven surface can cause
pooling, leading to future issues.
Cleanup and Finishing Procedures
- Allow to Cool: Let the tar cool completely
before moving on with your renovation. - Dispose of Waste Properly: Any excess tar
or felt should be disposed of following local guidelines. - Check for Leaks: Before covering the shower pan,
test for leaks by plugging the drain and filling with water.
Safety Considerations
- Ventilation: Work in a well-ventilated area to avoid inhaling fumes.
- Fire Safety: Keep a fire extinguisher nearby when heating tar.
- Temperature Caution: Be mindful of tar temperature to prevent burns.
Alternatives to Hot Mopping
Wondering if there are other options? Sure, there are alternatives like:
1. PVC Liners
PVC liners are flexible plastic sheets that can be installed beneath tiles to create a waterproof barrier.
Pros:
- Easier installation
- No heating required
Cons:
- Can tear if not handled carefully
2. Membrane Systems
These are applied as liquid coatings that dry into a seamless waterproof barrier.
Pros:
- Seamless finish
- Quick drying
Cons:
- Can be pricier than traditional methods
History of Hot Mopping
Hot mopping isn’t new; it’s been used in construction for decades due to its reliability. Knowing its history adds depth to understanding why it’s still popular today.
Personal Experiences & Stories
I remember my first encounter with hot mopping while helping a friend renovate his bathroom. We spent hours meticulously layering felt and tar, worried about potential leaks. But once we finished, that sense of accomplishment was unbeatable. Have you ever tackled a project like this?
Technological Advancements
Even in something as traditional as hot mopping, new materials and techniques are gradually improving efficiency and safety.
Expert Tips
- Always test a small area first if you’re new to hot mopping.
- Regularly replace your mop head to ensure even application.
- Consider hiring a professional if unsure about any step.
FAQ Section
Q: How long does it take for hot mop to dry?
A: Typically, it takes around 24 hours for the tar to fully cure, though it may feel dry sooner.
Q: Can I hot mop myself?
A: It’s possible but recommended to hire a professional due to safety concerns and expertise required.
Q: Is hot mop environmentally friendly?
A: The materials aren’t eco-friendly, but their longevity can reduce waste over time by preventing leaks.
Q: How often should I check my hot mop shower pan?
A: Regular inspections every few months can catch issues early before they become major problems.
