The right paint for your siding makes the difference between a 15-year finish and a 5-year one. Exterior coatings aren’t interchangeable — masonry needs different chemistry than wood, and trim needs different sheen than siding. This guide matches paint types, primers, and sheens to common exterior surfaces. Once you’ve chosen products, estimate quantities with the Open the Exterior Paint Calculator.
Paint Types for Exteriors
| Paint type | Best for | Notes |
|---|---|---|
| 100% acrylic latex | Most siding, stucco, trim | The default exterior choice: flexible, breathable, easy cleanup |
| Alkyd / oil-based | Trim, doors, metal | Hard, smooth finish; slower dry, stronger odor, stricter cleanup |
| Elastomeric | Stucco, masonry | Thick, flexible coating that bridges hairline cracks |
| Masonry paint | Brick, block, concrete | Formulated for alkaline surfaces; needs masonry primer |
For most homes, 100% acrylic latex is the right answer for the body, with alkyd or acrylic enamel on trim and doors. Check costs in the cost guide.
Matching Paint to Siding Type
- Wood siding: prime bare wood with exterior wood primer, then two coats of 100% acrylic. Wood moves with moisture, so flexibility matters.
- Fiber cement: usually arrives factory-primed; two finish coats of acrylic. Re-prime any cut edges.
- Vinyl: generally not painted — it’s designed maintenance-free. Specialty vinyl-safe paints exist, but check the siding warranty first; painting can void it.
- Aluminum: clean and de-chalk thoroughly, prime bare spots with metal primer, topcoat with acrylic.
- Stucco: elastomeric coating is the premium option for crack-bridging; standard acrylic works on sound stucco. Expect low coverage (200–300 ft²/gal / 19–28 m²/gal).
- Brick: masonry primer is essential on bare brick, then masonry or acrylic paint. The most paint-hungry surface at 150–200 ft²/gal (14–19 m²/gal). Note: painting brick is effectively permanent — removal is impractical.
Primers: Which One Where
- Exterior wood primer: bare and weathered wood siding and trim.
- Masonry primer: bare brick, block, stucco, concrete — seals alkalinity.
- Metal primer: bare steel, iron railings, aluminum patches.
- Stain-blocking primer: tannin bleed on cedar/redwood, rust stains, water marks.
Primer coverage runs about 250–350 ft²/gal (23–33 m²/gal). Many stores will tint primer toward the finish color, which helps coverage on deep color changes.
Sheen Selection
| Sheen | Use | Characteristics |
|---|---|---|
| Flat | Siding | Hides imperfections; less washable |
| Satin | Siding and trim | Most popular exterior sheen; subtle glow, good cleanability |
| Semi-gloss | Trim, doors, shutters | Durable, crisp contrast against body color |
Higher sheens show surface flaws more, so reserve semi-gloss for trim that’s been well prepped. The classic combination — satin body, semi-gloss trim — is classic for a reason. Application tips for each sheen are in the pro tips guide.
Supplies Beyond Paint
Paint gets the attention, but sundries make or break the job. Don’t start without: paintable exterior acrylic-latex caulk, exterior wood filler, 80–120 grit sandpaper and sanding sponges, painter’s tape, masking paper, canvas drop cloths (plastic is slippery and tears), quality angled sash brushes for trim, and rollers with the right nap for your texture — 3/8″ for smooth siding, 1/2″–3/4″ for rough or textured surfaces. A 5-gallon bucket with a roller grid lets you box paint for color uniformity and work efficiently. Budget $150–$300 for sundries on an average home; the cost guide includes them in the DIY budget.
- Paintable exterior acrylic-latex caulk
- Exterior wood filler for small repairs
- Sandpaper (80–120 grit) and sanding sponges
- Painter’s tape, masking paper, drop cloths
- Quality brushes (angled sash for trim) and 3/8″–3/4″ nap rollers matched to texture
- 5-gallon bucket with grid for boxing paint
Frequently Asked Questions
Is expensive paint really better?
For exteriors, generally yes. Higher solids and better resins mean better coverage per gallon and longer service life — the premium often pays for itself in fewer gallons and fewer repaints.
Can I use interior paint outside?
No. Interior paints lack the UV resistance, flexibility, and mildew protection exterior formulas have. They’ll fail quickly outdoors.
Oil or latex for exterior trim?
Modern acrylic enamels have largely replaced oil for trim — easier application, faster dry, and they stay flexible. Traditional alkyd still has fans for doors and fine woodwork.
Do I need special paint for stucco?
Stucco accepts standard 100% acrylic, but elastomeric coatings are worth considering for their crack-bridging ability and thicker build — at a higher price per gallon.
How much extra should I buy for touch-ups?
Keep one unopened gallon of the body color and a quart of trim color, labeled with the formula. Store in a climate-controlled space.
When Elastomeric Is Worth It
Elastomeric coatings cost more per gallon and cover fewer square feet per gallon than standard acrylics — but on stucco and masonry with hairline cracking, they’re often the right call. The thick, flexible film bridges cracks up to about 1/16 inch and moves with thermal expansion instead of cracking along with the substrate. Downsides: they’re harder to apply evenly, nearly impossible to remove, and overkill on sound, crack-free stucco where a quality acrylic does the job for less. If your stucco is heavily cracked, get the cracks evaluated first — elastomeric hides symptoms, not structural movement.
Paint Storage and Shelf Life
- Unopened latex: 2–5 years in a climate-controlled space; freezing ruins it — never store in an unheated garage through winter.
- Opened cans: reseal tightly (a rubber mallet on the lid, not a hammer), store upright, and label with room, color formula, and date.
- Test old paint before reusing: stir thoroughly and brush a test patch — if it’s lumpy, smells sour, or won’t mix smooth, dispose of it.
- Keep touch-up paint from the original boxed batch, not a later purchase — even the same formula can vary between batches.
Reading the Data Sheet
Before buying, check the manufacturer’s product data sheet for: coverage rate per coat, recoat window, minimum application temperature, VOC content (g/L), and recommended primer. These five numbers tell you whether the product suits your climate, your schedule, and your local regulations — see code compliance. If a product’s stated coverage seems optimistic for your surface, trust the surface-adjusted rates in the formula guide instead.
Related Guides
- Complete Guide — full measuring and calculation walkthrough
- Cost Guide — what paint and supplies should cost
- Pro Tips — application techniques that last
- Common Mistakes — avoid the expensive errors
- Project Checklist — every step in order
Disclaimer: Calculator results are planning estimates based on the dimensions you enter. Coverage varies with surface condition and application method — verify with the paint manufacturer’s data sheet and local regulations before purchasing.
