Maintenance script at 20:04, 23 March 2026

2026-03-23T20:04:59Z

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'''Exterior painting''' protects your home from weather, UV damage, moisture, insects, and rot while dramatically improving curb appeal. A quality exterior paint job lasts '''7-15 years''' depending on climate, paint quality, and surface preparation.

== When to Paint Your Exterior ==

=== Ideal Weather Conditions ===

{| class="wikitable"
|-
! Factor !! Ideal Range !! Why It Matters
|-
| Temperature || '''50-85°F''' (10-30°C) || Paint won't cure properly below 50°F; dries too fast above 85°F
|-
| Humidity || Below 50% || High humidity prevents proper drying and adhesion
|-
| Wind || Light breeze || High wind causes uneven drying, carries debris into wet paint
|-
| Rain || No rain 24 hrs before or after || Moisture ruins fresh paint; surface must be dry
|-
| Sun || Indirect/shade || Direct sun on surface causes too-rapid drying, poor adhesion
|}

'''Pro tip''': Follow the shade around the house — paint the north and east sides in the morning, south and west in the afternoon, always staying out of direct sunlight on the working surface.

=== Season ===
* '''Best''': Late spring and early fall (mild, stable temps)
* '''Good''': Summer (long days but watch for extreme heat)
* '''Avoid''': Winter (too cold in most climates), rainy season

== Choosing Exterior Paint ==

=== Paint Type ===
* '''100% acrylic latex''' (recommended): Most flexible, breathable, UV-resistant, and durable. Industry standard.
* '''Alkyd/oil-based''': Superior adhesion on chalky surfaces but restricted in many areas due to VOC regulations. Yellows over time.

=== Finish Selection ===

{| class="wikitable"
|-
! Finish !! Best For !! Durability
|-
| '''Flat/Matte''' || Siding, large surfaces, hiding imperfections || Good; less washable
|-
| '''[[Satin Paint|Satin]]''' || Siding (most popular exterior choice) || Very good; easy to clean
|-
| '''[[Semi-Gloss Paint|Semi-gloss]]''' || Trim, shutters, doors, fascia || Excellent; maximum protection
|-
| '''[[Gloss Paint|High-gloss]]''' || Front doors, accent details || Maximum; dramatic appearance
|}

== Surface Preparation ==

Exterior [[Surface Preparation|prep]] is even more critical than interior — the elements test every weakness.

=== Step 1: Inspect and Repair ===
* Replace rotted wood — don't paint over it
* Reset popped nails and fill with exterior-grade wood filler
* Repair damaged siding, trim, and fascia
* [[Caulking|Caulk]] all gaps: around windows, doors, where trim meets siding
* Repair or replace cracked glazing on windows

=== Step 2: Clean the Surface ===
* '''Power wash''' all surfaces at 1,500-2,500 PSI with appropriate tip
* Use a fan tip (25° or 40°) and maintain 12-18 inches distance
* Work from top to bottom
* Add cleaning solution for mildew-prone areas
* Allow '''48-72 hours''' of drying after power washing

=== Step 3: Scrape and Sand ===
* Scrape all [[Paint Peeling|loose, peeling, and flaking paint]]
* Feather edges of remaining paint with 80-grit [[Sanding|sandpaper]]
* Sand glossy surfaces for adhesion (150-grit)
* Remove all sanding dust with brush or compressed air

=== Step 4: Prime ===
* Apply exterior [[Paint Primer|primer]] to all bare wood, bare metal, and repaired areas
* Use oil-based primer for best adhesion on bare wood
* Use stain-blocking primer over tannin-rich woods (cedar, redwood)
* Use rust-inhibiting primer on exposed metal
* Prime entire surface if changing from oil to latex

== Painting Process ==

=== Work From Top to Bottom ===
# '''Fascia and soffits''' — highest point, drips won't hit finished work below
# '''Gutters and downspouts''' — while you're up high
# '''Siding''' — work in horizontal bands, one course at a time
# '''Trim, windows, and doors''' — detail work with [[Paint Brushes|brush]]
# '''Porches, steps, and foundation''' — lowest point, last

=== Application Methods ===

{| class="wikitable"
|-
! Method !! Speed !! Coverage !! Best For
|-
| '''Brush''' || Slow || Excellent penetration || Trim, detail work, small areas
|-
| '''Roller''' || Medium || Good || Flat siding, large smooth areas
|-
| '''Airless sprayer''' || Fast || Very good (with back-brushing) || Large areas, textured surfaces, [[Painting Siding|siding]]
|-
| '''Sprayer + back-brush''' || Medium-Fast || Best overall || Professional standard for most exteriors
|}

=== Spraying Technique ===
# Mask all windows, doors, light fixtures, and landscaping
# Spray at consistent distance (12 inches) and speed
# Overlap each pass by 50%
# '''Back-brush immediately''' — work paint into the surface with a brush after spraying
# Back-brushing ensures adhesion and eliminates thin spots

=== Siding Tips ===
* Paint the bottom edge of each clapboard/lap siding board
* Work the full length of each board without stopping
* Maintain a wet edge — never let paint dry mid-board
* [[Painting Siding|Vinyl siding]]: never choose a color darker than the original (warping risk)
* [[Painting Brick|Brick]]: use breathable masonry paint; consider limewash as an alternative
* [[Painting Stucco|Stucco]]: use elastomeric paint for crack-bridging capability

== Painting Specific Surfaces ==

=== Windows ===
# Open windows slightly so they don't seal shut
# Paint muntins (grid bars) first with a small brush
# Paint sash (the frame holding glass)
# Paint the frame and casing
# Carefully cut in along glass or use masking tape
# Move windows periodically while paint dries

=== Doors ===
# Remove hardware (knobs, knockers, house numbers)
# For panel doors: paint panels first, then rails (horizontal), then stiles (vertical)
# For flat doors: roll, then tip off with a brush
# See [[Painting Doors]] for complete guide

=== Metal Surfaces (Railings, Gutters) ===
# Remove loose rust with wire brush or sandpaper
# Apply rust-converting primer
# Coat with exterior metal paint or acrylic latex
# See [[Painting Metal]] for detailed guide

== Ladder and Scaffold Safety ==

* Use the '''4-to-1 rule''': base should be 1 foot from the wall for every 4 feet of height
* Maintain '''three points of contact''' at all times
* Never lean beyond arm's reach — move the ladder instead
* Set ladder on firm, level ground
* Use ladder stabilizers for working near gutters
* For heights above 20 feet, consider scaffolding or boom lift rental
* Never paint in high winds
* See [[Painting Safety]] for comprehensive safety guide

== Coverage and Costs ==

{| class="wikitable"
|-
! Surface !! Coverage per Gallon !! Coats Needed
|-
| Smooth siding || 400-450 sq ft || 2
|-
| Textured siding || 300-350 sq ft || 2
|-
| [[Painting Stucco|Stucco]] || 150-200 sq ft || 2
|-
| [[Painting Brick|Brick]] || 150-200 sq ft || 2
|-
| Trim/detail || 350-400 sq ft || 2
|-
| [[Painting Concrete|Concrete/masonry]] || 200-300 sq ft || 2
|}

For cost estimates, see [[How Much Does Painting Cost]].

== Maintenance ==

* '''Inspect annually''' — look for [[Paint Peeling|peeling]], chalking, cracking, and mildew
* '''Clean annually''' — gentle power wash or hand wash to remove dirt and mildew
* '''Touch up''' damaged areas promptly — small repairs prevent larger failures
* '''Caulk''' any new gaps that develop around windows and trim
* '''Repaint''' every 7-15 years depending on climate and paint quality

== Frequently Asked Questions ==

=== How long does exterior paint last? ===

Quality '''100% acrylic latex''' exterior paint lasts '''7-15 years''' depending on climate, sun exposure, [[Surface Preparation|surface prep quality]], and paint grade. South and west-facing walls degrade faster due to UV exposure. Premium paints with higher pigment concentrations and better binders last longer. In harsh climates (extreme heat, cold, humidity, or salt air), expect the shorter end of the range. Proper prep and two full coats maximize longevity.

=== Can I paint my house exterior myself? ===

Yes, with proper planning and safety precautions. A single-story home is a manageable DIY project for most homeowners. Multi-story homes require significant ladder work or scaffolding and carry higher safety risks — consider hiring professionals for second-story and above. Budget 1-2 weeks for a full exterior depending on house size. The biggest challenge is typically [[Surface Preparation|prep work]], which takes more time than the actual painting.

=== What temperature is too cold to paint outside? ===

Most exterior paints require a minimum of '''50°F (10°C)''' during application and for several hours afterward. Some specialty cold-weather formulas work down to '''35°F (2°C)'''. Below minimum temperature, paint won't form a proper film — it may crack, peel, or have poor color development. Check both air temperature and surface temperature. Also consider overnight temperatures — if paint applied in afternoon faces freezing overnight, it may fail. Always check the paint can label for specific temperature requirements.

=== Should I spray or brush exterior paint? ===

'''Spraying with back-brushing''' is the professional standard for most exterior work — it's fast and ensures good penetration. Spraying alone (without back-brushing) can leave thin coverage that fails prematurely. '''Brushing alone''' provides the best paint penetration but is very slow for large areas. '''Rolling''' works well for flat surfaces like smooth siding and soffits. For trim and detail work, a [[Paint Brushes|brush]] is essential regardless of the method used for siding.

[[Category:Exterior Painting]]
[[Category:House Painting]]

Exterior Painting - Revision history

Maintenance script at 20:04, 23 March 2026