Renovate with science. Protect with craft.
Ceiling · Floor · Wall
Homeowners can come to us directly too: recurring wall damp, drain noise at night or footsteps from upstairs — send photos on LINE for an initial assessment before we book a site visit. Start the self-check ↓
We first work out where the water comes from, how the sound travels and where the heat gets in, then handle wall damp, drain pipe noise, floor impact noise and moisture in ceilings, floors and walls, with materials and installation in one contract. Based in New Taipei, serving Taipei, New Taipei, Keelung and Taoyuan.
Wall damp repaired — and back again not long after?
The problem usually isn’t that the patch wasn’t done hard enough. If water still has a way in and only the wall surface gets fixed, only the symptom gets fixed.
When someone upstairs flushes in the middle of the night, can you hear the water running over your head?
Drain noise isn’t just one sound: flowing water, turbulence at elbows, bursting bubbles, water hitting the pipe wall, plus pipe hangers passing vibration into the floor slab. Just adding another ceiling layer often doesn’t block the real path.
About to redo your floor? Have you wondered whether your footsteps bother the neighbors below?
Footsteps and chair scraping travel through the structure, so the most effective place to treat them is at the source floor. Redoing the floor in your own home is the lowest-cost time to do it.
More than finishing a renovation: we reconfigure how your space performs.
Less demolition · Faster installation · Stable performance · Low maintenance
Plum rains, typhoons, earthquakes, apartment living: several of the reasons walls get damp are beyond a resident’s control. Figure out which one it is first, then you’ll know how to deal with it.
Taiwan has frequent earthquakes. Buildings are shaken year after year, fine cracks slowly form, and moisture gains another way in.
The island climate brings high humidity, lots of rain and big temperature swings, so concrete keeps cycling between damp and dry, expanding and contracting.
Concrete was never completely waterproof. Fine pores, plus aging and cracks, give moisture a path to follow.
In an apartment building, the neighbor upstairs, shared pipe shafts, exterior walls, window frames: some water doesn’t start in your home at all.
Every 1618 天地牆 system is designed to improve one or more of them.
Acoustic Decoupling
Drain noise, impact noise (footsteps through the floor slab), sound from next door: find the transmission path first, then decouple it with an independent functional layer.
Learn moreThermal Barrier
For west-facing concrete walls and top-floor ceilings, we build a functional layer on the interior side to stop heat from passing straight in through the structure.
Learn moreDamp Wall Repair
Find where the water comes from and stop it, confirm the wall has dried, and only then talk about boarding and finishes.
Learn moreMoisture & Mold Control
Block water vapor and raise the wall surface temperature to reduce the conditions for condensation and mold growth.
Learn moreTotal Cost of Ownership
Less demolition, faster installation, stable performance, low maintenance: the math covers the entire period of use.
Learn moreDouble-Wall Defense is the umbrella name for 1618 天地牆 systems across ceilings, floors and walls: on the interior side of the existing structure, we build a separate, independent functional layer so that each layer does what it does best.
The V-CORE vacuum layer handles thermal insulation, vapor blocking, and sound insulation and vibration damping. It doesn’t absorb water and has low vapor permeability, but it is not a waterproofing layer, and it is not responsible for stopping water.
Performance isn’t a line in a catalog. We show you the materials, the specs and the job site together, and we’re clear about which parts aren’t yet backed by test reports.
For drain pipe noise reduction, applied as a spiral wrap
Based on the product data provided so far; for formal citation, the standard, units and version in the original test report take precedence. Material performance is not the same as finished-system performance; actual noise reduction depends on pipe material, pipe diameter, water flow, hanger fixing and workmanship.
12 services in total: 4 for ceilings, 3 for floors, 5 for walls. The shared principle of V-CORE vacuum-layer systems: build an independent functional layer in addition to the existing structure, with the V-CORE vacuum layer in between for decoupling and separation, so the new and old construction never touch directly and form a sound bridge or thermal bridge. Actual layers, thicknesses and fixing methods depend on site conditions.
Drain noise, sound from upstairs, and the stuffy heat of top-floor and west-facing rooms mostly come in through the ceiling and piping layer.
Light-steel framing goes up fast and can be partly removed and replaced, but the frame and hangers are also paths for sound and heat.
We add a V-CORE vacuum layer between the frame and the panels as a decoupling and separation layer, and treat the hanger points, perimeter edges, and openings for light fixtures and air vents. Leave these untreated and you’ve left a direct path.
If the sound comes from the pipes themselves, pipe wrapping and hanger fixing need to be assessed too. Adding boards alone has limited effect.
Once a wood-framed ceiling is boarded, it’s hard to open up again. Pipe wrapping, hanger vibration damping and joint treatment get only one chance: before boarding.
綠晶木 board ceilings are often used in damp locations or where moisture resistance is needed. The real problem usually involves drain vibration, condensation inside the ceiling and temperature differences all at once.
We place a V-CORE vacuum layer between the facing material and the base layer to handle decoupling, separation and moisture control together, and reinforce the fixing points and edges so joints don’t loosen as materials expand and contract.
A moisture-resistant material doesn’t mean the build-up won’t get condensation. Ventilation, pipes above and cold-bridge locations still need to be considered.
Drain noise isn’t just one sound: running water, turbulence at elbows and tees, bursting bubbles, water hitting the pipe wall, plus structure-borne sound as hangers pass vibration into the floor slab or walls.
We first identify the sound source and transmission path, then spiral-wrap the pipe with V-CORE vacuum-layer pipe wrap (spec 30 m × 8 cm × 5 mm), reinforce elbows, tees and hanger points, and add a double-ceiling system where needed.
Actual results depend on pipe material, pipe diameter, water flow, hanger fixing and workmanship. Without on-site measurement, we don’t promise a fixed decibel figure up front.
Footsteps from upstairs, dusty or slippery floors, worn wall and floor surfaces: first figure out whether it’s sound traveling through the structure or surface performance wearing out.
The V-CORE vacuum layer goes between the finish layer and the concrete floor slab as a thin decoupling and damping functional layer, forming a complete build-up together with the vibration-damping layer, leveling layer and finish layer.
The edges are key: if the finish layer touches the wall directly, or the threshold isn’t separated, it forms a sound bridge and cancels out the performance.
The V-CORE floor sound-insulation system has earned the Taiwan High-Performance Green Building Material Label.
Full guide to floor sound insulation
Material performance is not the same as finished-system performance. The floor slab condition, the allowable added height and the threshold detailing still need to be confirmed.
A two-component modified polyurea coating recolors and refreshes existing ceiling, wall and floor surfaces, reducing demolition, debris removal and disruption to daily life.
Before work starts, we confirm the substrate is sound, dry and free of ongoing seepage, then choose color and sheen based on where it will be used.
A coating treats the surface. Substrate cracks, hollow spots or seepage must be dealt with first, or even the best coating will peel early.
A two-component epoxy colored-sand self-leveling system, troweled in one pass into a seamless finish, rebuilds surface performance such as waterproofing, slip resistance, wear resistance and easy cleaning on top of the existing floor, without large-scale demolition.
Suitable for indoor and outdoor floors such as concrete or tile. Whether the substrate needs leveling first is decided during the site inspection.
Moisture, cracks or hollow spots in the substrate must be treated first. After troweling, the floor can be used only after the required drying and curing time.
Wall damp, sound from next door, west-facing walls heating up: before any treatment, the wall material and moisture condition must be confirmed.
The sequence: identify the water source and moisture condition → stop, block or drain the water → prepare the structural substrate → build an independent functional layer on the interior side with V-CORE vacuum-layer fire-resistant boards → restore with skim coat and paint.
If we find the water source is in the exterior wall and water is still getting in, we’ll tell you directly that the exterior wall needs to be dealt with first. We won’t force the interior job. See how the three situations are assessed
Reinforced concrete (RC) stores a lot of heat. After absorbing sunlight during the day, it keeps releasing heat indoors, which is why west-facing rooms often feel stuffier at night. The same wall is also a path for sound and water vapor.
We build an independent functional layer on the interior side of the concrete structure, handling thermal insulation, sound insulation and moisture control as needed, along with joints, fixing points and perimeter edges.
A wall that is still seeping can’t just be boarded over. Sealing water inside the build-up only delays the problem.
Sound through a lightweight partition usually takes more than one path: straight through the wall, through door gaps and outlet boxes, around via the ceiling or floor slab, and through the frame acting as a sound bridge.
We build a V-CORE vacuum-layer decoupling functional layer outside the existing frame and panels, and deal with offsetting outlet boxes, sealing openings, perimeter edges and door gaps.
Lightweight bricks are light and quick to lay, suited to places where adding load to the floor slab isn’t advisable. The bricks handle structure and room division; the V-CORE vacuum layer handles the paths for sound, heat and water vapor. The two play different roles.
We build a V-CORE vacuum-layer decoupling functional layer outside the expanded-clay wall, reinforcing the joints, top detailing and the edges around openings.
Confirm before planning: existing or newly built, whether there’s a wet area or an exterior side, how much added thickness is acceptable, and whether moisture control is also needed.
How build-up types are named: for walls we say “double-wall,” for ceilings “double-ceiling.” The layers, thicknesses and scope of each system are confirmed by site inspection and actual test data. This page does not state fixed decibel figures, energy-saving percentages or warranty periods.
Wall damp is the trace left when moisture moves through a wall, carries salts out, and they crystallize as the water evaporates. Where the white powder appears is usually the “evaporation surface”; the real point where water gets in is often above or beside it. The order is always: stop the water first, confirm the wall is dry, and only then talk about boarding and finishes.
Exterior wall leaks have been fixed, or it was never a leak at all: humid indoor air meets a cold wall surface and condenses, which is seasonal, covers a large area and is evenly spread.
Interior-side Double-Wall Defense work can go ahead directly.
It still feels damp and white powder keeps appearing. First remove loose old plaster, strengthen the water-stopping treatment, and wait until re-tested moisture levels meet the target.
Boarding happens only after the wall’s condition is confirmed, with a removable access panel left in place.
If it gets wet only after rain and slowly dries once the rain stops, the cause is most often cracks in the exterior wall, tile joints or aging silicone around window frames. If the upstream source isn’t fixed, no amount of careful interior work will hold up.
Fix the exterior wall first, wait until the wall has truly dried, then do the interior.
When supply or drain pipes are actively leaking, when high moisture readings in the wall mean liquid water is still being supplied, or when the exterior source can’t be dealt with at all (for example, the source is in another unit and the owner won’t cooperate). Forcing the boarding at that point means sealing the water inside the wall. The more honest approach is to first help clarify what can be done about the source, or switch to a breathable repair that lets the wall keep drying, and come back to add the rest once the source is fixed.
1618 天地牆 doesn’t just sell materials, and doesn’t just take on installation contracts. Only when materials and methods are matched together can we take responsibility for the result.
Send one wide shot and one close-up and tell us when it happens; for drain or noise problems, include a 10–20 second recording.
We separate the problem source, the transmission path and site constraints, for an initial assessment.
We make clear which performance goal to improve (sound insulation, thermal insulation, moisture control or water stopping) instead of lumping every problem together.
We configure the build-up layers to suit site conditions, and the finished net dimensions are made clear at the quote stage.
Edges, openings, hangers and joints are treated one by one, a go/no-go check is done before boarding, and every key step is photographed for the record.
We inspect against the agreed items and hand over the construction records. Warranty scope and terms are stated clearly in the quote.
The go/no-go check before boarding can’t be skipped. Boarding closes off the wall’s path to dry toward the inside. We confirm the wall’s condition and substrate strength before moving to the next step. Problems you can’t see from the surface often show up only one to three years later.
These photos show conditions at the time of inspection. Under the 1618 SOP for localized interior waterproofing repairs, every step is photographed for the record; to protect the homeowner’s privacy, the street address is not published.
If the cheap option has to be redone in two years, you pay again for demolition, debris removal, reinstallation, and the days you can’t live at home. 1618’s approach relies on less demolition, faster installation, stable performance and low maintenance to lower the overall bill, the TCO (total cost of ownership), not necessarily the first quote.
With wall damp or sound insulation projects, the biggest worry isn’t the method. It’s the client thinking it’s fixed, then calling six months later to ask why it happened again. We organize the assessment, details and limits into material you can use directly in those conversations.
Moisture, pull-off and hollow-spot test results decide whether the base layer has to be stripped. Until the numbers are in, don’t lock in the wall build-up.
The functional layer takes up thickness. Mark it at the floor plan stage so the client knows what to expect before signing.
They can be built into storage cabinets, a removable baseboard section or the service door of built-in cabinetry, instead of an awkward cover plate on the wall.
After adding us on LINE, type 設計師 (designer) and we’ll send detail drawings and proposal materials.
Each article starts with the causes, then covers how to assess the problem, common mistakes, and when a solution does and doesn’t apply.
Not necessarily. Humid indoor air hitting a cold wall surface also condenses, leaving similar efflorescence and damp marks. Condensation and leaks are treated in completely different ways, so the cause must be determined first, before any work begins.
Dehumidifying and mold treatment deal with the result. If the moisture source isn’t dealt with, the effect is usually just a delay; salts will be carried to the surface again with the moisture, often over a larger area than last time.
No. The V-CORE vacuum layer handles thermal insulation, vapor blocking, and sound insulation and vibration damping. It doesn’t absorb water and has low vapor permeability, but it is not responsible for stopping water. In the full process, what actually stops the water is 綠典 penetrating crystalline sealer.
Footsteps, chair scraping, running and jumping are impact noise that travels through the structure. The most effective place to treat it is usually at the source, meaning the floor build-up upstairs. If you’re about to redo the floor in your own home, that’s the lowest-cost time to install a thermal and acoustic floor. Treating only your own ceiling brings limited improvement, and we’ll explain that clearly during the site inspection.
No quote without a site visit. Even for the same wall damp problem, the steps can vary a lot depending on the water source, wall material and moisture condition, so quoting a number up front won’t help you. You can send us photos on LINE for an initial assessment first, then book a site inspection.
1618 天地牆 is based in New Taipei City and serves Taipei, New Taipei, Keelung and Taoyuan. For other areas, send us photos on LINE first and we’ll let you know whether an inspection can be arranged.
Warranty scope and terms are stated clearly at the quote stage, based on the actual site assessment and the materials’ technical data. We don’t give an unconfirmed fixed period in advance.