A building's exterior is its first line of defense against the elements, and it's the lasting impression for every guest, tenant and passerby. While the idea of "exterior upkeep" might conjure images of endless painting and repair, maintaining a beautiful and durable facade is often simpler than you think, especially when you choose modern, low-maintenance materials.
Here is a quick, actionable guide to general upkeep procedures that will protect your investment and keep your home or building looking its best year after year.
1. The Power of Routine Cleaning
The most essential upkeep procedure is also the simplest: routine cleaning. Over time, exterior surfaces (siding, mouldings, stucco or stone panels) can accumulate dirt, pollen, spiderwebs, and environmental debris.
The Procedure:
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Annual Wash: At least once a year (spring is ideal), give your exterior a thorough wash. For most composite or stone veneer materials, a soft-bristle brush, a garden hose, and a mild soap-and-water mixture is all you need.
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Pressure Washer Caution: If you use a pressure washer, use it with extreme care and on a low setting. Always keep the nozzle moving and hold it at a safe distance. High pressure can damage paint, sealant joints, grout, or the surface of certain materials.
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Spot Cleaning: Address mud, bird droppings, or stubborn stains as soon as you notice them. The longer a stain sits, the harder it is to remove.
Tip: Composite exterior mouldings are simple to clean. They're primed and painted after installation, so they clean like any painted exterior surface: mild soap, water and a soft brush.
2. The Seasonal Inspection Checklist
The transition between seasons provides a perfect opportunity for a preventative inspection. Catching small problems early prevents them from turning into costly repairs.
What to Look For:
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Check the Joints and Seals (Caulking): Inspect the areas where different materials meet, such as around windows, doors, trim and utility penetrations. Check the condition of the caulk or sealant. If you see cracking, shrinking, or peeling, it needs to be repaired or replaced to prevent water intrusion.
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Paint Condition: Painted trim and mouldings are repainted like any painted exterior trim. Touch up chips and worn areas, and follow the paint manufacturer's recommended repaint schedule.
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Gutters and Drainage: Ensure all gutters and downspouts are clear of leaves, nests, and debris. Blocked gutters can cause water to overflow and run down the side of the building, leading to staining, material damage, or even foundation issues.
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Check for Cracks or Damage: Look over your exterior for physical damage. Composite mouldings are durable and less susceptible to cracking than traditional materials, but impact damage can occur. A quick visual inspection can identify areas that need a touch-up or replacement. On stucco and EIFS walls, pay extra attention to sealant joints and impact marks; see EIFS vs. stucco for how the two wall systems differ.
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Trim Foliage: Keep shrubs, trees, and vines trimmed away from the walls. Direct contact can trap moisture against the wall and cause scratching.
3. Addressing Mildew, Mold, and Moss
In damp, shaded areas, mold, mildew, or moss can begin to grow. Not only are these unattractive, but they can slowly degrade some exterior surfaces.
The Solution:
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Ventilation: Ensure that your soffits and vents are clear to promote good air circulation, especially in damp areas.
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Mildew Removal: For stubborn spots, a mild detergent and water, or a diluted household cleaner made for exterior surfaces, is usually enough. Apply the solution, let it sit briefly, and scrub gently with a soft brush before rinsing thoroughly with clean water.
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Avoid Harsh or Acidic Cleaners: Avoid industrial-strength strippers and acidic cleaners (including vinegar), which can etch cement-based coatings, stucco and natural stone, or damage the paint. When in doubt, always test your cleaning solution on a small, inconspicuous area first.
4. For Commercial and Multi-Family Buildings
On multi-family buildings, hotels, retail and offices, the same steps work best on a schedule: an annual wash, inspections at each change of season, and a log of sealant and paint touch-ups. When a length of trim is damaged, replace that piece with the same profile so the facade stays consistent from floor to floor.
The Composite Advantage
If your building features modern composite materials, like the exterior mouldings and wall claddings from Mouldex Composites, you've already done the heavy lifting. Mouldex mouldings won't rot or warp, and the core is moisture-inert, so there's no rotted wood to replace and no sanding or scraping of swollen trim. Wood-look facades get the same benefit: StoCast Wood planks give the look of timber without the rot. Beautiful inside. And out.
By dedicating just a few hours each year to cleaning and a quick inspection, you keep your exterior in good condition and protect its curb appeal. Simple care goes a long way.
Planning exterior upgrades? Browse exterior mouldings, order a free sample kit or send us your project.
