Most Requested Service
Deck Waterproofing
A walkable waterproof deck system, built up in layers over a properly prepared surface, is the difference between a deck that last...
Deck Waterproofing details →Roof Deck Waterproofing in San Diego County
A roof deck is a roof you walk on, and it has to do both jobs perfectly. We waterproof rooftop decks and occupied-space decks across San Diego County with systems rated for the sun exposure, foot traffic, and drainage demands that combination creates.
Since 2012CA Lic. #1063501San Diego County
Signs a roof deck needs attention
When to call us
- ✓Leaks or staining in the room directly below the deck
- ✓Coating chalking, cracking, or wearing through in traffic paths
- ✓Ponding areas that hold water long after rain
- ✓Failed sealant at scuppers, drains, and parapet transitions
- ✓Blisters or soft spots in the walking surface
- ✓Door thresholds where water sits against the sill
Twice the job of a normal roof
A conventional roof sheds water and is otherwise left alone. A roof deck takes furniture, foot traffic, and full sun while a bedroom or living room sits directly underneath. There is no attic to absorb a mistake. The system has to be a true roofing membrane and a durable walking surface at once, and the drainage details have to be right because the deck perimeter is usually a parapet, not an open edge.
Details carry the system
Scuppers, drains, parapet caps, and door thresholds are where roof decks fail. The field membrane is rarely the weak point. Our work concentrates on those transitions: flashing carried up parapets and under thresholds, drains rebuilt and resealed, slope corrected so water actually reaches them. Then the walking surface goes down as an integrated traffic rated topcoat over the waterproofing, not as an afterthought.
Occupied space below means documentation
Because failure lands on a ceiling below, we moisture test before and after, document the substrate condition, and photograph the flashing details before they are covered. You get a record of what your roof deck actually is under the finish.
Scope of Work
What roof deck waterproofing includes
- ✓Moisture survey of the existing assembly and ceiling below
- ✓Tear-off or preparation of the existing surface as condition dictates
- ✓Parapet, scupper, drain, and threshold flashing details
- ✓Slope correction to eliminate ponding
- ✓Reinforced waterproof membrane rated for rooftop exposure
- ✓Traffic rated UV stable walking surface
Pricing, Honestly
What drives the cost
Roof deck projects are scoped by area, by what the moisture survey finds in the existing assembly, and by the detail count around the perimeter. Sound substrates take a new system directly. Wet assemblies need selective tear-off first, and finding that out before the quote rather than during the job is the whole point of our assessment process.
- ✓Deck area and existing assembly condition
- ✓Tear-off scope if moisture is trapped in the system
- ✓Parapet, drain, and threshold detail count
- ✓Walking surface finish selection
How We Work
Diagnose. Prepare. Seal and verify.
01 / Diagnose
Find the true source
We trace where water is actually entering before anything is quoted. Sealing over a mystery is how the same failure happens twice.
02 / Prepare
Fix what is underneath
Substrate repair, flashing, and slope come before any product goes down. It is the part of the job you never see, and it decides everything.
03 / Seal + Verify
Install the right system
Materials matched to your surface and exposure, installed to spec, checked before we call it done.
Related Services
Often part of the same fix
Renew Before It Fails
Deck Coating Restoration
The cheapest waterproofing project is the one where the membrane underneath is still good. Deck coating restoration renews the wea...
Deck Coating Restoration details →
Coastal Exposure Specialists
Balcony Waterproofing
Balconies take the worst of the coastal exposure and hide the results inside their framing. We waterproof balconies on homes, cond...
Balcony Waterproofing details →Straight Answers
Questions we hear about this work
Can you waterproof over my existing roof deck coating?
Only after testing says the existing system is dry and bonded. Coating over trapped moisture guarantees blisters and a callback, so we test first and tell you what the readings say. When overlay is safe it saves money, and when it is not we show you why.
What surface options are there for the finished deck?
Textured traffic coatings in a range of colors are the standard, and tile or pavers over a waterproofing membrane are options where the structure allows the weight. We walk you through what fits your deck and budget.
How do you handle the door from the house to the deck?
Thresholds are one of the most common leak points and one of the least fun to fix after the fact. We flash under and around the threshold as part of the membrane system, and where the sill sits too low we correct the detail so water cannot stand against it.
How long does a roof deck system last?
The membrane systems we install are rated for many years of rooftop exposure, with the walking topcoat maintained on a recoat cycle like any high wear finish. Keeping drains clear is the single best thing an owner can do between services.
Next Step
Get a diagnosis, not a sales pitch
Tell us what you are seeing with your roof deck waterproofing project, anywhere in San Diego County. The owner reviews every assessment and every quote.
3930 El Cajon Blvd, San Diego, CA 92105
Mon to Sat: 9AM to 5PM · Sun: Closed
CA Lic. #1063501 · Since 2012
Quoted by the owner. No sales rep follow-up circus.