A permanent roof-drilled mount is the cleanest and most secure Starlink installation for full-time RVers who want a set-and-forget setup. Unlike rail clamps and non-penetrating mounts, a drilled flush roof mount stays in place while driving, doesn't shift in wind, and requires no setup at each site. The tradeoff is a roof penetration — which needs to be done correctly to prevent leaks. Here's the hardware and the technique.

RV Roof Types and Mount Compatibility

ROOF TYPECOMMON ONMOUNT HARDWARE NEEDED
EPDM rubberClass A, Class C, 5th wheelStandard lag bolts + Dicor sealant
TPO rubberNewer Class A, 5th wheelStandard lag bolts + TPO primer + Dicor
FiberglassClass B vans, some Class CLag bolts + backing plate + butyl tape
AluminumOlder RVs, some cargo vansSelf-tapping screws + butyl tape
Laminate / plywood compositeMost RVsLag bolts into roof structure

Permanent Flush Roof Mount — The Right Way

Flush Roof Mount Kit for Starlink — RV Installation

Low-profile flush mount kit designed for permanent RV roof installation on EPDM, TPO, and fiberglass surfaces. Includes the mount bracket, stainless lag bolt hardware, EPDM weatherboot, and cable guide channel. Positions the dish at minimal height above the roofline — reducing wind profile while traveling. Pre-drilled mounting holes align to standard RV roof rib spacing. The mount most professional RV Starlink installers use for permanent full-time installations. Designed to accept standard Starlink Gen 3 dish via 1.5" NPT thread.

Roof: EPDM, TPO, fiberglass | Profile: Low — minimizes wind drag
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Weatherproofing the Roof Penetration

Weatherproof Cable Entry Gland for RV Roof

A compression-seal cable gland that creates a watertight entry point where the Starlink cable passes through the RV roof. Compresses around the cable's outer jacket when tightened, sealing against rain entry, drafts, and insects at the penetration point. The correct hardware to use at any cable penetration — the mount bolt holes are sealed with Dicor, but the cable penetration requires a dedicated gland. Accepts Starlink's cable diameter (approximately 8mm OD) without modification.

Seal: Compression on cable OD | Use: Roof cable entry
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Installation Process for EPDM Rubber Roof

1.Mark mount position — check inside for roof ribs/structure to anchor into
2.Pre-drill 5/16" pilot holes through the EPDM and roof decking
3.Apply butyl tape strips under the mount base before setting
4.Drive lag bolts through mount, through butyl tape, into roof structure
5.Apply self-leveling Dicor sealant around all bolt heads and boot perimeter
6.Drill cable entry hole — install cable gland, feed cable, tighten gland
7.Apply Dicor around cable gland base
8.Allow Dicor to skin over (~30 min) before exposing to rain
PRO TIP: Use Dicor 501LSW self-leveling lap sealant for horizontal surfaces (rooftop penetrations). Use Dicor 551LSW non-sag for vertical surfaces (sidewall or fascia). Using the wrong product leads to cracking and eventual leaks. The difference is visible in the product name — "self-leveling" flows on flat surfaces, "non-sag" holds on vertical ones.

Height and Obstruction on an RV Roof

Full-time RVers traveling through varied terrain benefit from the Starlink obstruction checker at every new site. Trees at campgrounds are the most common obstruction — a flush-mounted dish on the RV roof may be blocked by tall trees at some campsites. For campground use with significant tree coverage, a supplemental ground tripod at the best available sky position complements the permanent roof mount.

Frequently Asked Questions

> Will a drilled mount void my RV warranty?
Roof penetrations made correctly with proper sealant are standard RV modifications. Most manufacturer warranties don't cover modifications by nature — but a properly sealed penetration that doesn't leak won't cause warranty-relevant damage. RV extended warranties typically cover mechanical systems, not exterior modifications.
> How often should I inspect the roof sealant?
Inspect all Dicor sealant annually — ideally before each camping season. Look for cracks, shrinkage, or separation from the mount base or cable gland. Re-apply where needed. Dicor sealant on RV roofs has a typical service life of 2–5 years depending on UV exposure before re-application is needed.

A permanently mounted flush roof Starlink on your RV is the cleanest possible setup — no setup time at each site, no risk of forgetting to stow before driving. Do the weathersealing correctly once and it runs trouble-free for years. Use our referral link to get started on Starlink — first month free.

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