When it comes to maintaining your RV one of the most important jobs is to make sure your roof is sealed. A leaky roof can cause big damage to your RV and costly repairs. That’s why you need to invest in a good RV roof sealant.
But with so many out there how do you know which one is best for your RV? In this article we’ll go over the top RV roof sealants and help you choose the right one for you
Your RV’s roof is exposed to the elements 24/7 to UV rays, rain and extreme temperatures. Over time this can cause the roof to crack, peel and leak. A good RV roof sealant is a barrier that prevents water from getting into your RV and causing damage.
Protects Against Water Damage
Water damage is one of the most common and costly problems for RV owners. A leaky roof can cause rot, mold and mildew which can cause structural damage and health hazards. By using a good RV roof sealant you can prevent water from getting into your RV and avoid these problems.
Extends the Life of Your RV
Using a good RV roof sealant can also lengthen the life of your RV. By protecting your roof from the elements you can prevent premature wear and tear and avoid costly repairs or replacements.
Maintains the Value of Your RV
A well maintained RV is worth more than a neglected one. By sealing your RV’s roof regularly you can keep it in top shape and keep its value for years to come.
There are several types of RV roof sealants out there each with its own unique properties and benefits. The most common are TPO, EPDM and silicone sealants.
TPO Sealants
TPO (thermoplastic polyolefin) is a popular roofing material used on RVs. TPO sealants are for use on TPO roofs and provide great adhesion and UV protection. They are also mold and mildew resistant making them a good choice for RVs in humid climates.
EPDM Sealants
EPDM (ethylene propylene diene monomer) is another common roofing material used on RVs. EPDM sealants are for use on EPDM roofs and provide great UV protection and extreme temperature protection. They are also flexible so good for RVs that move while on the road.
Silicone Sealants
Silicone sealants are a popular choice for RV roofs because of their durability and flexibility. They are UV resistant, extreme temperature resistant and chemical resistant making them a good all around option for RVs. They also have a longer life than other sealants making them a cost effective choice in the long run.
Top RV Roof Sealants
Now that you know the types of RV roof sealants, let’s look at some of the top options.
Dicor 501LSW-1 Lap Sealant
The Dicor 501LSW-1 Lap Sealant is a favorite among RV owners. For use on RV roofs and provides great adhesion to multiple roofing materials including TPO and EPDM. UV stabilized so won’t crack or peel.
EternaBond RSW-4-50 RoofSeal Sealant Tape
The EternaBond RSW-4-50 RoofSeal Sealant Tape is a unique option that comes in tape form. Easy to apply and provides a strong waterproof seal. UV stable and extreme temperature resistant so good for all RVs.
Geocel 28127V Pro Flex Crystal Clear RV Flexible Sealant
The Geocel 28127V Pro Flex Crystal Clear RV Flexible Sealant is a silicone based sealant that provides great adhesion and flexibility. UV resistant and extreme temperature resistant so good for all RVs. Clear so good for those who want a more discreet sealant.
Dicor 501LSW-1 Self-Leveling Lap Sealant
Another Dicor option is the 501LSW-1 Self-Leveling Lap Sealant. For use on horizontal surfaces and provides a watertight seal. UV stabilized and can be used on multiple roofing materials including TPO and EPDM.
The following are the minimum ventilation requirements for roofs in the Ontario Building Code (OBC):
Total Ventilation Area →The total ventilation space should be a minimum of 1/300 of the area of the insulated ceiling.
Distribution → Ventilation holes should be evenly distributed on both sides of the building with at least 25% at the top and 25% at the bottom of the space.
Type of Vents →Vents can be roof, eave, gable-end or any combination of those.
Installing additional ventilation such as gable or roof vents may be something to consider if you’re concerned about ice dams forming on your roof. To allow water to drain properly you also need to make sure your gutters and downspouts are clear of debris and clean.
Applying RV roof sealant is easy but follow the manufacturer’s instructions for best results. Here are the general steps to apply RV roof sealant:
Clean the roof: Before applying sealant make sure the roof is clean and free of debris. Use a mild detergent and water to clean the roof and let it dry completely.
Prepare the sealant: If using tube sealant cut the tip of the nozzle to the desired size. If using tape sealant measure and cut the tape to the desired length.
Apply the sealant: Apply the sealant in a continuous bead along the edges of the roof, vents and any other areas that may be prone to leaks. If using tape sealant remove the backing and press the tape onto the roof.
Smooth the sealant: Use a putty knife or your finger to smooth the sealant and make sure it’s evenly distributed.
Let it dry: Depending on the type of sealant used it may take anywhere from a few hours to a few days to dry. Check the manufacturer’s instructions for specific drying times.
In addition to sealing your RV roof regularly, here are a few more things you can do to maintain it and prevent leaks:
Inspect your roof regularly for any damage or wear and tear.
Keep your RV covered when not in use to protect it from the elements.
Don’t walk on the roof unless necessary, it can cause damage.
Trim any overhanging tree branches that could damage the roof.
Check and clean your RV’s gutters regularly to ensure proper drainage.
A good RV roof sealant is key to keeping your RV in good condition and value. By choosing the right one and maintaining your roof regularly you can avoid costly repairs and extend the life of your RV. Choose one from above and happy camping!
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