Roof Repair and Replacement for Rancho Santa Margarita RV Owners

Owners usually arrive with a stain on a ceiling panel and a tube of lap sealant already bought, and the sealant is the right product applied at the wrong moment. Water enters at a penetration, runs along a rafter or a decking seam, and surfaces in the living space several feet from where it got in. Sealing what you can see from a ladder therefore fixes the leak roughly a third of the time and hides it the rest. So the first hour of any roof job here is mapping. The deck gets walked in a grid, pressed with a flat palm every eighteen inches, tapped at anything suspicious and metered at the edge of every soft zone.

Two findings out of that survey change the entire estimate. The first is soft decking, because new membrane bonded over wet lauan telegraphs and lifts inside a season no matter how well it was laid. The second is what the roof is actually built from, which is not obvious from the ground: a 45 mil EPDM sheet, a heat weldable TPO, or a laminated fiberglass panel that is carrying structural load in its own right. Those three take different adhesives, different patch stock and different heat, and a shop that treats them as one material produces a repair that fails at its edges.

Most towables and a large share of gas coaches wear a flexible sheet bonded to decking, either 45 mil EPDM or a heat weldable TPO. They fail in a small number of predictable ways: the sheet lifts where adhesive let go, a seam splits at the front cap where the roof flexes most, a branch opens a clean tear about eight feet up, and the lap sealant around every flange shrinks and cracks until it is holding nothing. Repairs are bonded or welded back to sound substrate rather than taped over, because tape spans a hole without restoring the sheet, and the patch that gets applied over a shrinking sealant bed simply moves the leak six inches.

Higher end coaches and many fifth wheels use a laminated panel: gelcoat over glass over a core of foam or Azdel, bonded into a single stiff sheet. That panel is doing structural work, so damage to it is a composite repair rather than a roofing repair. The signatures are different too. Instead of a lifting sheet you get spider webbing across a radius, a hairline crack running away from the corner of an air conditioner opening, or a section that sounds hollow under a knuckle where the laminate has separated from its core. Fixing it means grinding a taper, laying matched glass schedule and curing under heat, then bringing the surface back so the repair does not read as a patch.

Storm work is scoped differently from wear work because a carrier is usually in the conversation and the damage is often not leaking yet. Dimpling across open membrane, a split air conditioner shroud, a shattered vent lid with the fan still turning underneath and bruised circles that read soft under a thumb are all documentable damage on a dated event, and they are worth documenting before anybody climbs up with a caulk gun and destroys the evidence. The scope has to distinguish the storm from everything the roof was already doing, which is the argument that decides whether the claim pays.

Every hole in a roof is a future leak that has been temporarily solved, and the fittings in those holes wear out long before the roof does. Lids go brittle and shatter, crank mechanisms strip so the handle spins without lifting anything, rain sensors decide it is raining in full sun, and the acrylic dome over the shower crazes and goes milky until a cold night cracks it. These are the cheapest jobs on this page and the ones with the best return, because a flange reset with fresh butyl under it and self leveling sealant on top costs a fraction of the decking repair it prevents.

There is a point at which further repair is money spent on a roof that has already failed, and the survey usually makes it obvious: several separate soft areas, ceilings sagging in more than one room, edge trim screws that no longer bite anywhere along a side, or five years of tape and sealant applied by three different people. At that point everything comes off. Trim, penetrations, air conditioners and the sheet itself, down to bare framing wherever readings demand it, then new decking, new membrane and every fitting reset. It is the largest job in this department and it is the only one that resets the clock.

Roof sealant is a consumable, not a component. Self leveling lap sealant belongs on horizontal flanges where it can flow into a joint, and non sag sealant belongs on vertical and overhead surfaces where the self leveling product would simply run. Both move with the roof, both shrink over years of Southern California sun, and both need looking at every autumn before the first rain rather than every time a stain appears inside. An inspection takes twenty minutes on a ladder with a flashlight held at a low angle so shadows show up the cracks.

What you put up there matters as much as when. Petroleum based products attack EPDM. A silicone bead over a cracked sealant bed prevents anything else from ever bonding to that flange again. A roof coating rolled over a sheet that is already lifting locks the moisture underneath it and turns a section repair into a tear off, which is why a peeling coating applied by a previous owner shows up in the replacement rows of the table above rather than the repair rows.

Adhesive and sealant chemistry is unforgiving about conditions. Bonding adhesive has an open time that shortens in heat and a cure that stalls in cold. Butyl needs a clean dry flange. A flood test tells you nothing if the deck was already wet when you started. So this work runs inside, under a 16 foot door that clears a 13 foot 6 coach with its air conditioners on, on rolling platforms that spread a technician's weight rather than concentrating it on a panel we are not yet sure about.

That is also the answer to the most common question we get on this category. There is no mobile roof service here and no roadside option, because the unit has to come indoors, dry out and stay dry through a cure schedule that can run overnight. Doing membrane work in a storage row in October is how a repair gets bonded to a damp deck, and the second attempt costs more than the first would have.

Roof work bills from the body and paint department at $210 per hour with body supplies at $5 per body hour, sealants and membrane stock carry standard parts markup, and sales tax applies to parts and materials while labor is not taxed. A written estimate is $150 and credits in full against an authorized repair, which on this category is worth taking before you make a keep or sell decision on an older unit.

Three things move the number, and none of them is the size of the hole. Decking is first: a fifty square foot wet zone doubles a membrane job because framing has to be exposed, dried and often replaced. Access is second, since air conditioners, solar arrays, satellite domes and ladder rails all have to come off and go back with correct gasket thickness for the finished deck height. Material is third, because a laminated fiberglass section needs matched glass schedule and heated cure while a membrane patch needs adhesive and a roller.

Every roof dispute is an argument about time. Carriers pay for a dated event and decline a slow failure, and once a deck is opened, water from a branch strike last month and water from a shrunken flange over six seasons look identical. What separates them is context recorded at intake: the condition of the sealant around the failure, whether interior staining shows layered tide lines or a single fresh edge, and whether the moisture pattern radiates from one recent penetration or from all of them at once.

Practically, that means photographs and meter readings dated before anything is disturbed, and a note on when you first saw the stain. Our claims coordinator writes the scope with those attached, which is why storm roofs approve faster than owners expect and why a roof that has been quietly wet for years does not approve at all, however the claim is worded.

Anything up to a 45 foot coach comes indoors here, and commercial bodies run through the same bay: translucent fiberglass reinforced panels on a cube van, aluminum roof sheet on a box body, and the ladder rack feet that dimple both. Where we redirect is interior. A ceiling panel stained by a leak we have now stopped is finish work, a wall cavity that stayed wet is a subfloor and panel job, and a sidewall bubble with no roof involvement at all is composite work rather than roofing.

Typical turnaround is 3 to 22 shop days. A vent or skylight goes in and out in three to five shop days. A localized membrane section runs five to ten. A tear off with decking replacement occupies a bay for two to four weeks, and adhesive cure schedules inside that window cannot be shortened by working faster.