Question 1

What is the best time of year to paint a house exterior in New Brunswick considering weather?

Accepted Answer

The best time to paint a house exterior in New Brunswick is mid-June through early September — the heart of summer — when daytime temperatures are reliably above 15°C, overnight lows stay above 10°C, humidity is at its seasonal low, and you have the longest daylight hours to work with. That said, the full exterior painting window runs from mid-May through mid-October if you're willing to watch the forecast carefully.

Temperature is the hard constraint. Most exterior latex paints require a minim

Question 2

How often should I repaint the exterior of my home in New Brunswick’s Maritime climate?

Accepted Answer

In New Brunswick's Maritime climate, most homes need exterior repainting every 7–10 years for wood siding and trim, though coastal properties near the Bay of Fundy, Shediac, or the Northumberland Strait may need repainting every 5–7 years due to salt air exposure. The quality of the last paint job, the paint products used, the wood species and condition, and how well the surface was prepared last time all have more impact on longevity than any single factor.

NB's climate is genuinely hard on ex

Question 3

How do I paint vinyl siding on my New Brunswick home or should I avoid it?

Accepted Answer

You can successfully paint vinyl siding in New Brunswick, and in many cases it's an excellent alternative to replacement — but only if you choose a paint formulated specifically for vinyl, avoid going more than 1–2 shades darker than the original colour, and do thorough prep work first. Painting vinyl siding the wrong way — wrong paint, wrong colour, wrong prep — leads to buckling, peeling, and fading within a couple of years in NB's climate.

The critical rule with vinyl siding is colour select

Question 4

What preparation is needed for painting aluminum siding on a home in Bathurst NB?

Accepted Answer

Painting aluminum siding in Bathurst requires more preparation than most other exterior surfaces — specifically thorough cleaning, sanding or deglossing the oxidized and chalky surface, spot-priming any bare metal or corrosion, and applying a bonding primer before your topcoat. Skip any one of these steps and the paint will peel off within a season, particularly in Bathurst's climate which combines NB's standard freeze-thaw cycles with proximity to Chaleur Bay and the associated salt-laden air f

Question 5

What paint should I use on exterior concrete foundation walls in a Fredericton home?

Accepted Answer

For exterior concrete foundation walls in Fredericton, use a masonry-specific elastomeric or 100% acrylic masonry paint rated for below-grade and freeze-thaw conditions — NOT standard exterior house paint, which will peel off concrete within one or two winters. The right product choice and thorough surface prep are what separate a paint job that lasts 5–10 years from one that bubbles and flakes off by spring.

Concrete foundation walls present a unique combination of challenges: they're porous,

Question 6

How do I deal with peeling paint on soffit and fascia boards on my NB home?

Accepted Answer

Peeling paint on soffits and fascia is one of the most common exterior painting problems on New Brunswick homes, and it almost always comes back to moisture — either from inadequate attic ventilation, ice dam leakage, or paint applied over damp wood. Getting a lasting result means fixing the moisture source first, not just scraping and repainting.

NB’s climate is brutal on these areas. Winter ice dams force meltwater up under shingles and into fascia boards. Spring thaw saturates unprotected so

Question 7

How do I paint a porch or veranda floor in New Brunswick that gets heavy foot traffic and weather exposure?

Accepted Answer

A porch floor in New Brunswick needs a dedicated porch and floor enamel or a two-part epoxy floor paint — standard exterior wall paint is not hard enough to handle foot traffic and will scuff, chip, and peel within one season. With the right product and proper prep, a painted porch floor can look excellent for 3 to 5 years before needing a refresh.

NB porch floors face a punishing combination of conditions: heavy rain from Maritime storms, grit and sand tracked in from winter boots and road sal

Question 8

Can I paint the exterior of my house in September or October in New Brunswick before winter?

Accepted Answer

September and early October can actually be excellent months for exterior painting in New Brunswick — but timing depends heavily on where in the province you live and how closely you watch the daily forecast. By mid-October, the risk grows significantly, and by November, exterior painting is not viable for most of NB.

September brings some real advantages over peak summer for exterior work. Humidity tends to drop compared to July and August, especially in the Fredericton and Saint John areas, w

Question 9

How do I paint exterior window frames and trim without getting paint on the glass?

Accepted Answer

The two reliable methods for keeping trim paint off glass are masking tape applied precisely along the glass edge, or painting deliberately right up to the glass and scraping the dried overspray off with a razor blade scraper once the paint cures. Most professional painters who do a lot of exterior trim work actually prefer the razor blade approach — it is faster than perfect taping and produces a cleaner result.

The masking tape method works well if you use the right tape and apply it carefull

Question 10

Should I pressure wash my house before painting the exterior in New Brunswick?

Accepted Answer

Yes — pressure washing before exterior painting is essential in New Brunswick, and skipping it is one of the most reliable ways to guarantee early paint failure. Paint simply will not bond properly to a surface covered in dirt, algae, mildew, chalked old paint, or salt residue, and NB's climate gives every one of those problems a chance to develop.

New Brunswick's Maritime humidity and relatively mild summers create ideal conditions for algae and mildew to colonize exterior walls, particularly

Question 11

How long does exterior paint last in New Brunswick compared to drier Canadian provinces?

Accepted Answer

Exterior paint in New Brunswick typically lasts 5 to 8 years on most surfaces with quality products and good preparation, compared to 8 to 12 years or more in drier provinces like Alberta and Saskatchewan. The difference comes down almost entirely to NB's Maritime climate — high humidity, frequent rain, heavy freeze-thaw cycling, and coastal salt exposure all accelerate paint breakdown.

To understand why NB is hard on exterior paint, consider what happens through a typical year. Spring brings h

Question 12

What is the best exterior paint for north-facing walls in NB that get mildew and algae growth?

Accepted Answer

For north-facing walls in New Brunswick that attract mildew and algae, you want a premium 100% acrylic latex exterior paint with built-in mildewcide, applied over a properly cleaned and treated surface. The paint choice matters, but the surface preparation matters even more — no paint will stay mildew-free if applied over an existing colony.

North-facing walls in NB get the worst of it: limited direct sunlight, slow drying after rain, persistent cool moisture, and often full shade for much of t

Question 13

What is the best way to deal with mildew on exterior siding before repainting in Moncton?

Accepted Answer

Mildew must be completely killed and removed before repainting — painting over active mildew is one of the most common and costly exterior painting mistakes in Moncton, and it causes new paint to fail within a single growing season. Mildew is a living organism that grows right through new paint, and the dark stains it leaves will bleed through fresh coats even after the mildew is dead unless you treat the surface properly.

Moncton’s combination of Maritime humidity (regularly 65-80% relative hu

Question 14

Should I use oil-based or latex paint for exterior trim on my Fredericton home?

Accepted Answer

For exterior trim on a Fredericton home, the modern answer is a high-quality acrylic-alkyd hybrid paint — and for most applications, premium 100% acrylic latex is an excellent and more practical choice than traditional oil-based paint. Pure oil-based (alkyd) exterior trim paint has largely been replaced in professional painting practice for good reasons.

The traditional argument for oil-based trim paint was its hardness, levelling, and ability to give a very smooth, durable finish on wood trim,

Question 15

How does salt air in coastal New Brunswick areas like Shediac affect exterior paint?

Accepted Answer

Salt air is one of the most aggressive forces acting on exterior paint in coastal New Brunswick, and homes in Shediac, the Northumberland Strait communities, along the Bay of Fundy shoreline, and the Bathurst coastline need a different approach to exterior painting than inland NB homes. The difference in paint longevity between a properly protected coastal home and one that isn’t can be three to four years per paint cycle.

Salt in the air arrives in two forms in coastal NB: as actual sea spray

Question 16

What temperature range is safe for exterior painting in New Brunswick and what happens if it gets too cold overnight?

Accepted Answer

The safe temperature range for exterior painting in New Brunswick is between 10°C (50°F) and 30°C (86°F), both at application time and for at least 24-48 hours afterward — and in NB’s climate, the overnight low is just as important to check as the daytime high. Paint applied on a warm NB autumn afternoon can be ruined overnight if temperatures drop unexpectedly.

Most latex exterior paints have a minimum application temperature of 10°C printed on the label, and manufacturers mean that as both an

Question 17

What causes exterior paint to peel on homes in Saint John near the Bay of Fundy?

Accepted Answer

Peeling exterior paint in Saint John almost always comes down to one of three causes: moisture in the substrate, salt air degradation of the paint film, or inadequate surface preparation before the last repaint — and often it’s a combination of all three. The Bay of Fundy environment is genuinely one of the toughest in the country for exterior coatings.

Saint John sits at the mouth of one of the world’s highest-tidal estuaries, and the city’s older uptown and south end neighbourhoods face salt-

Question 18

How does NB’s freeze-thaw cycle affect exterior paint durability and what paint type resists it best?

Accepted Answer

New Brunswick’s freeze-thaw cycle is the single harshest force acting on exterior paint in this province, and the only product that reliably stands up to it is 100% acrylic latex exterior paint. Rigid coatings — particularly alkyd or oil-based paints — crack and chip under repeated expansion and contraction, while quality acrylic latex stays flexible enough to move with the substrate.

NB experiences well over 100 freeze-thaw cycles per year in many areas, and in some inland regions like Frederi

Question 19

What type of paint is best for exterior clapboard siding on a Moncton home?

Accepted Answer

For clapboard siding on a Moncton home, the best choice is a premium 100% acrylic latex exterior paint — nothing else is as well-suited to the combination of Maritime humidity, freeze-thaw cycles, and the natural movement of wood clapboard. Budget acrylics and any oil-based product will underperform in this climate and on this substrate.

Clapboard siding (also called bevel siding or bevelled boards) is common on homes throughout Moncton’s older neighbourhoods — from the century-old Victorians i

Question 20

How do I prepare cedar shingle siding for painting on a New Brunswick home?

Accepted Answer

Preparing cedar shingle siding properly is about 70% of the battle — a rushed prep job on cedar will result in peeling paint within two to three NB winters, regardless of what you spend on paint. Cedar is porous, resinous, and highly sensitive to moisture, so each preparation step matters.

Cedar shingle siding is found on a huge proportion of older New Brunswick homes, particularly in Saint John, Fredericton, and rural communities. Many of these homes have had multiple paint layers applied over

Exterior Painting