Fits
Good Acrylic Roof
- Slope
- Pitched panels, clear runoff
- Water
- Dries within hours of rain
- Existing finish
- Sound paint or bare primed steel
- Schedule
- Late spring to early fall days
- Result
- White film built up in passes
Pitched Metal Roofs
Allentown Acrylic Roof Coating Contractor
Is a Bright Acrylic Coat Right for Your Metal Roof?
As an Allentown acrylic roof coating contractor, we roll and spray water-based acrylic over prepared metal roofs that drain well, pass by pass.
- Water-based coating
- Bright reflective finish
- Applied in dry weather
- Simple to recoat
Does Allentown Acrylic Roof Coating Suit This Roof?
Allentown acrylic roof coating needs runoff and dry weather. This side-by-side shows a roof that fits and one that should look elsewhere.
Look elsewhere
Poor Acrylic Roof
- Slope
- Flat spots and low valleys
- Water
- Puddles linger for days
- Existing finish
- Silicone already on it
- Schedule
- Work needed in cold months
- Result
- Silicone or repairs first
Acrylic Roof Coating Prep on Allentown Metal Buildings
Acrylic is a thinner, water-based film, so the work under it has to be right. These conditions get handled first.
Rust Under Old Paint
Paint bubbles hide rust that keeps spreading. We scrape and brush those areas to firm steel and prime them before acrylic touches the panel. Primer is matched to the acrylic product used.
Laps Along The Ribs
Side laps run the full length of each rib. Sealant and reinforcement go in there first, because acrylic alone will not hold a working lap closed. Fabric goes into the first pass across each lap.
Fastener Heads
Screw heads stand proud of the panel, and thin film around them wears quickly. Each one gets a sealant cap so coverage holds at the high point. Caps cure before the first full pass of coating.
Low Spots
Water that sits softens acrylic. Any area that holds rain gets corrected or switched to a silicone detail. Small dips get a silicone patch tied into the field.
Chalky Old Coatings
Chalk on an aging finish keeps new coating from bonding. Pressure washing and an adhesion test come before the first pass. Washing removes the chalk so coating can bond to the old finish.
Cold Nights
Acrylic needs warm days and nights above its minimum to cure. Fall work stops before the season turns, and nothing goes down before dew forms. Spring and early fall days get checked against the roof surface temperature.
Commercial Roof Coating Options for Allentown
Acrylic systems change with the panel and finish underneath. These are the variations we price.
Over Painted Steel
Factory-painted panels that still hold their paint get washed, spot-primed, and coated in two or more passes. Paint that flakes gets scraped first.
Over Rust-Treated Steel
Heavier rust areas get cleaned and primed with rust-inhibiting primer, then built up with extra film. Primer dries fully before the first acrylic pass.
Fabric At Laps
Polyester fabric bedded in acrylic across side laps, end laps, and ridge caps where the roof moves. Ridge caps get fabric along their full length.
Acrylic Recoat
An older acrylic roof is washed, tested, and recoated with acrylic to restore lost thickness. Silicone areas are never recoated with acrylic.
Reflective White Finish
A bright topcoat for buildings where heat gain through dark steel is a complaint from the floor. The finish brightens the roof surface the most in summer.
Benefits of Coating Your Roof
On a roof that drains well, acrylic seals the leak points and brightens the surface without heavy material weight.
Before Coating
- Rust streaks running down the ribs
- Laps weeping during long rains
- Dark steel heating the floor below
- Screw heads rusted and dull
- Old paint chalking and flaking
After Coating
- Rust treated and sealed under primer
- Laps reinforced with fabric
- A white surface that reflects sun
- Fastener heads capped and covered
- Fresh film that recoats easily
Rust Streaks Running Down Your Panels?
Call us before the rust works through. Surface rust on firm steel is the stage when coating does the most good.
Acrylic Roof Coating Decisions on Allentown Jobs
Each acrylic job goes through these calls, in order, before the first pass.
- 1
Inspect Your Roof
Rust, laps, fasteners, flashing, runoff paths, and the condition of the paint or coating already there. Low spots get marked on the plan.
- 2
Does Water Leave Fast?
Acrylic needs runoff. Sections that hold water are fixed or detailed with silicone so the acrylic field stays dry between storms.
- 3
How Thick, How Many Passes?
The product sheet sets the dry film thickness. We plan passes to reach it over ribs and fasteners, where film runs thinnest.
- 4
Which Days Work?
Roof surface temperature, humidity, and the chance of rain or dew decide each day. Shaded sections can lag behind sunny ones.
- 5
Is Coverage Checked?
Wet film readings during application and dry checks afterward confirm thickness over ribs and fasteners. Thin areas get another pass on the next good day.
More Roof Coating Options Near Allentown Acrylic Jobs
Parts of the same building sometimes need a different system. These services pair with acrylic.
Commercial Metal Roof Coating
The prep and repair work behind every metal coat.
Silicone Roof Coating
Heavier film for low spots and slow drainage.
Spray Foam Roofing
Added R-value with a coated foam surface.
Shingle Roof Coating
Products made for asphalt, never metal coatings.
Allentown Acrylic Roof Coating Questions
Fit
Does acrylic roof coating work on commercial roofs?
It protects a commercial metal roof when the panels are firm, prep suits the product, and drainage and drying conditions fit. Moving connections and traffic areas still need upkeep afterward, since that is where coverage wears first.
How well does acrylic coating on metal roofs hold up?
Well on pitched panels that shed water, after rust treatment and lap sealing. It struggles on flat areas that hold water, which is why those spots get a different detail.
Coverage
How many coats of acrylic roof coating does a roof need?
Enough to reach the required film thickness everywhere, usually two passes or more. A coat count alone proves nothing; we check thickness over ribs, fasteners, and repairs, where the film runs thinnest.
How is coverage checked over ribs and fasteners?
Against the product sheet. We plan passes and drying time to reach the specified thickness at raised surfaces, not only on the flat panel between ribs.
Weather
What is acrylic roof coating cure time?
The manufacturer sets it, and conditions change it. Surface temperature, humidity, film thickness, and dew all matter. A sunny section can feel dry while a shaded area with heavier coverage is still soft.
When is acrylic ready for another pass?
When the manufacturer drying instructions are met for that section. We check shaded and heavy areas, not just the first spot that looks dry.
Planning
How long does an acrylic job take on a metal roof?
Prep and repairs often take as long as the coating. Each pass then needs a dry day plus drying time, so the schedule follows the weather more than the square footage.
What does acrylic coating cost per square foot?
Coating plans run about $2.50 to $4.00 per square foot. Rust treatment, fastener caps, lap fabric, and the number of passes needed to reach thickness move it within that range.
Is acrylic coating good for heat inside the building?
A white acrylic surface reflects much of the sun that a dark steel roof would absorb. Owners with hot work floors under metal roofs often notice the difference in summer.
Hire an Allentown Acrylic Roof Coating Contractor
See a ballpark range for coating your metal roof, or call to talk about runoff, rust, and timing.