Dicor Lap Sealant for RV Roofs at Menards: A Practical Guide

Dicor Lap Sealant is a go-to solution for sealing the edges and seams on RV roof systems, offering weatherproof protection and long-lasting flexibility. Menards is a common retail option where campers and DIYers look for this product, alongside compatible Dicor accessories. This article explains what Dicor Lap Sealant is, how it is used on RV roofs, where to find it at Menards, and best practices for application and maintenance. Readers will learn how to choose the right version, prepare surfaces, and apply the sealant for durable results.

Product Overview

What it is Dicor Lap Sealant is a versatile, flexible sealant designed for RVs, boats, and flat or slightly curved roof applications. It adheres well to metal, rubber, and fiberglass substrates commonly found on travel trailers and motorhomes. The sealant remains pliable after curing, resisting UV exposure, temperature cycles, and moisture. This makes it suitable for sealing roof seams, fastener penetrations, vent bases, and skylight edges.

Key features include weather resistance, compatibility with Dicor roof coatings, and a white or tan base that blends with many RV exteriors. Some formulations are self-leveling for horizontal surfaces, while others are intended for vertical seams. While performing repairs, users benefit from a product line that includes both lap sealant and roof sealant variants designed to work together with Dicor’s coatings and flashings.

At Menards, Dicor Lap Sealant is typically stocked in standard caulking cartridge or squeeze-tube formats, making it accessible for quick repairs or full roof maintenance. Availability can vary by location and season, so checking online stock or contacting a local store is advisable before visiting.

When To Use Dicor Lap Sealant

Dicor Lap Sealant is appropriate for sealing:

• Roof seam joints and flashings on EPDM, TPO, or metal roofs
• Around vents, air conditioning units, skylights, and plumbing penetrations
• Edges of edging mouldings and cap seals where movement may occur
• Between Dicor roof coatings and roof materials to prevent leaks

For best results, it is used after surface cleaning and surface dry times, following the product’s cure time guidance. It is not meant to replace mechanically fastened roof systems or to seal large structural gaps. Always inspect for underlying damage that may require replacement of roofing materials.

Types Of Dicor Lap Sealant

Dicor offers several formulations designed for RV roofs. The main distinctions are application direction (self-leveling vs. non-sag), base color, and compatibility with roof coatings. The most common categories include:

• Non-sag Lap Sealant for vertical seams and areas where gravity is not an issue. It adheres well to most roof substrates and cures with a flexible, durable film.
• Self-Leveling Lap Sealant designed for horizontal surfaces where gravity helps spread the material. This type provides a smooth, uniform finish but must be applied carefully to joints to avoid overflow.
• Roof Coating Compatible variants that pair with Dicor roof coatings to create a complete waterproof system. These are optimized for long-term adhesion with subsequent coatings.

When shopping at Menards, customers should verify the exact product name, color, and size, since Dicor’s line includes multiple options. Reading the label helps ensure the sealant meets the intended surface (EPDM vs. metal) and environmental conditions (extreme heat, cold, or moisture exposure).

Preparation And Application

Proper surface preparation is essential for a durable seal. The steps below summarize best practices for a typical RV roof repair:

• Clean the area with a non-abrasive cleaner to remove dirt, oils, and old sealant residues. Rinse and allow to dry completely.
• Dry fit and mask any adjacent surfaces you don’t want coated. Use painter’s tape to create clean lines if a neat appearance is desired.
• Choose the right product Select a Dicor Lap Sealant that matches the surface and the desired application (self-leveling for horizontal surfaces or non-sag for vertical seams).
• Apply evenly Squeeze or extrude the sealant in a continuous bead along seams or around penetrations. For self-leveling variants, avoid over-application that could cause drips.
• Tool and finish Use a caulk smoothing tool or gloved finger to shape the sealant and ensure good coverage. A consistent, rounded bead looks professional and resists water ingress.
• Clean up Wipe excess sealant from adjacent areas before curing. Monitor the curing environment and avoid exposure to rain during the initial set period.

Note: Cure times vary by product and climate. Always consult the product label for specific instructions, ventilation needs, and safety precautions.

Usage Tips For Menards Shoppers

Shopper considerations when purchasing at Menards include:

• Availability Stock may differ by store. Check Menards’ online catalog or call ahead to confirm whether the specific Dicor Lap Sealant variant is in stock.
• Color matching White, tan, and gray are common choices. Select a color that blends with the roof surface to minimize visibility of the sealant after curing.
• Size options Larger quarts or gallon-sized containers may be available for ongoing maintenance, while smaller cartridges are convenient for quick fixes.
• Accessories Consider purchasing compatible Dicor primers, coatings, and flashings when planning a full roof restoration. This ensures better adhesion and a seamless seal.

Maintenance And Longevity

Maintaining Dicor Lap Sealant helps extend roof life. Regular inspections identify cracks, peeling edges, or soft spots that require prompt resealing. In harsh climates, reapplication every few years may be prudent, depending on exposure and roof movement. Keep an eye on expansion and contraction cycles in seasonal conditions, and re-seal any compromised joints to prevent leaks.

Storage and handling Keep containers sealed and stored in a cool, dry place away from extreme temperatures. Follow safety guidelines on the label, including ventilation and skin protection when working with sealants.

Alternatives At Menards

Beyond Dicor, Menards may offer other RV sealants and roof coatings suitable for similar applications. When evaluating alternatives, compare:

• Substrate compatibility (EPDM, TPO, metal, fiberglass)
• Flexibility, curing time, and resistance to UV exposure
• Color options and compatibility with existing Dicor coatings
• Warranty terms and product life expectancy

For some projects, a combination approach—using a Dicor base sealant with a compatible roof coating—may provide superior durability. Always ensure the chosen products are designed to work together to avoid adhesion issues.

Safety And Compliance

Work in a well-ventilated area and wear gloves to prevent skin contact. Read all safety instructions on container labels, especially for solvent-based formulations. Proper disposal of empty containers and cured sealant remnants should follow local regulations. If unsure about the roof’s material or the product’s suitability, consult the vehicle manufacturer’s guidelines or a professional RV technician.

FAQ

Q: Can Dicor Lap Sealant be used on all roof types? A: It is designed for common RV roofs, including EPDM, TPO, and metal surfaces, but always verify compatibility with the specific substrate.

Q: Is Menards the only place to buy Dicor Lap Sealant? A: No, it is available at many hardware retailers and online stores. Menards is a convenient local option.

Q: Do I need to remove old sealant before applying new? A: Yes, cleaning and removing loose material improves adhesion and performance.

Q: How long does Dicor take to cure? A: Cure times vary by product and conditions; follow the label for precise guidance.