LP SmartSide Siding For Humid Atlanta Conditions
Atlanta’s hot and humid climate presents unique challenges for homeowners when selecting exterior siding materials. With summer humidity levels regularly exceeding 70% and annual rainfall averaging around 50 inches, your home’s exterior needs special protection against moisture-related issues. LP SmartSide has emerged as a popular siding option specifically engineered to withstand these challenging conditions. This comprehensive review examines how LP SmartSide performs in Atlanta’s climate and whether it’s the right choice for your home.
What Is LP SmartSide Siding?
LP SmartSide is an engineered wood siding product manufactured by Louisiana-Pacific Corporation. Unlike traditional wood siding, LP SmartSide undergoes a special treatment process called SmartGuard® that enhances its durability and resistance to moisture, fungal decay, and termites—all common concerns in Atlanta’s humid environment.
| Specification | Details |
|---|---|
| Material Composition | Engineered wood (treated wood strands bonded with resin) |
| Treatment | SmartGuard® process (zinc borate, advanced binders, waxes) |
| Available Styles | Lap, panel, trim, fascia, soffit |
| Length Options | 16 ft. lengths (reduces seams compared to fiber cement) |
| Warranty | 5/50-year limited warranty (5-year 100% labor and material, 50-year prorated) |
| Impact Resistance | Tested for resistance to impacts up to 200 mph |
| Weight | Approximately 40% lighter than fiber cement |
LP SmartSide Performance in Atlanta’s Humid Climate
Atlanta’s climate presents several challenges for exterior siding materials, including high humidity, frequent rain, occasional severe storms, and hot summers. Let’s examine how LP SmartSide addresses these specific regional concerns:
Humidity Resistance
LP SmartSide is specifically engineered to withstand high-humidity environments. The SmartGuard® treatment process infuses each wood fiber with zinc borate compounds and advanced resins that protect against moisture absorption. During my inspection of several Atlanta homes with LP SmartSide installed for 5+ years, I observed minimal swelling or warping despite exposure to our notorious summer humidity.
Rainfall Protection
With Atlanta receiving approximately 50 inches of rainfall annually, water resistance is crucial. LP SmartSide’s wax-infused edge coating helps prevent water infiltration at the most vulnerable points. The siding’s engineered design allows it to expand and contract minimally with moisture changes, maintaining its structural integrity through seasonal weather fluctuations.
Heat and UV Resistance
Atlanta’s hot summers with temperatures regularly exceeding 90°F can degrade many siding materials. LP SmartSide’s factory-applied primer provides a foundation for paint adhesion, helping the final finish resist UV damage and color fading. Homes I’ve evaluated with south-facing LP SmartSide installations showed minimal color degradation after 3-5 years compared to untreated wood or vinyl alternatives.
Pros and Cons of LP SmartSide for Atlanta Homes
| Pros | Cons |
|---|---|
| Excellent humidity and moisture resistance | Higher initial cost than vinyl siding |
| Engineered to withstand extreme weather conditions | Requires repainting every 5-7 years in Atlanta’s climate |
| More impact-resistant than fiber cement (important for hailstorms) | Professional installation recommended (improper installation can void warranty) |
| Lighter weight makes installation easier and faster | Not as fire-resistant as fiber cement options |
| Available in 16-foot lengths (fewer seams than fiber cement) | Some restrictions apply in extremely humid microclimates |
| Can be cut with standard woodworking tools | May require special maintenance in areas with excessive shade/moisture |
| Authentic wood appearance with greater durability | Slightly more expensive than traditional wood siding |
LP SmartSide Product Options for Atlanta Homes
LP SmartSide offers several product lines that Atlanta homeowners should consider based on their specific needs:
LP SmartSide Lap Siding
The most popular choice for Atlanta homes, lap siding provides a traditional horizontal look with excellent water shedding capabilities. The 16-foot lengths mean fewer seams where moisture could potentially penetrate, making it ideal for our rainy climate. Available in various widths (5″, 6.875″, 8″, 12″), this option provides flexibility in achieving your desired aesthetic.
LP SmartSide Panel Siding
For modern homes or partial exterior applications, panel siding offers a contemporary look. The smooth finish panels work particularly well for Atlanta’s newer urban developments, while the cedar texture options blend nicely with the traditional architecture found in neighborhoods like Druid Hills or Virginia Highland.
LP SmartSide Trim & Fascia
These complementary products ensure a complete exterior system with matching durability. In Atlanta’s climate, fascia boards are particularly vulnerable to moisture damage, making the treated LP SmartSide fascia an excellent investment for long-term protection.
LP SmartSide Smooth Finish
The newest addition to the lineup, smooth finish options provide a clean, contemporary look similar to fiber cement but with LP’s enhanced moisture protection. This is becoming increasingly popular in Atlanta’s modern new construction projects.
Installation Considerations for Atlanta’s Climate
Proper installation is crucial for maximizing LP SmartSide’s performance in Atlanta’s humid conditions:
- Proper gap spacing: Allow 3/16″ gap at joints and 1/8″ gap where siding meets trim to accommodate minimal expansion in our humid environment
- Flashing details: Particularly important around windows and doors to prevent water infiltration during heavy Atlanta thunderstorms
- Ground clearance: Maintain minimum 6″ clearance above grade to prevent splash-back moisture absorption
- Painting requirements: All cuts must be primed and painted, with final painting completed within 180 days of installation
- Ventilation: Proper home ventilation is essential in Atlanta to prevent excessive moisture buildup behind siding
LP SmartSide vs. Competitors in Atlanta’s Climate
| Feature | LP SmartSide | James Hardie Fiber Cement | Vinyl Siding | Traditional Wood |
|---|---|---|---|---|
| Humidity Resistance | Excellent | Excellent | Good | Poor |
| Impact Resistance | High | Medium | Low | Medium |
| Weight | Medium | Heavy | Light | Medium |
| Installation Ease | Good | Difficult | Very Easy | Moderate |
| Maintenance in Atlanta | Moderate (5-7 year repainting) | Moderate (7-10 year repainting) | Low (occasional cleaning) | High (2-3 year repainting) |
| Typical Cost in Atlanta | $7-$11 per sq ft installed | $9-$13 per sq ft installed | $4-$7 per sq ft installed | $6-$9 per sq ft installed |
| Lifespan in Atlanta Climate | 30+ years with proper maintenance | 30+ years with proper maintenance | 20-30 years | 15-20 years with rigorous maintenance |
Real-World Performance in Atlanta Neighborhoods
I’ve inspected LP SmartSide installations across various Atlanta neighborhoods, each with slightly different microclimates:
North Atlanta (Buckhead, Sandy Springs)
In these slightly cooler, tree-covered areas, LP SmartSide has performed exceptionally well, even on homes with significant shade (which can sometimes trap moisture). The siding showed minimal signs of mold or mildew compared to traditional wood siding in the same neighborhoods.
East Atlanta (Decatur, Druid Hills)
These established neighborhoods with mature tree canopies create challenging conditions for siding. LP SmartSide installations here demonstrated good resistance to the high humidity created by dense vegetation, though homes required slightly more frequent cleaning to remove natural debris.
South Atlanta (Grant Park, East Point)
In these areas with more sun exposure, LP SmartSide’s UV resistance was put to the test. After 5+ years, the siding maintained its structural integrity with minimal fading when properly maintained with quality exterior paint.
Maintenance Requirements in Atlanta’s Climate
To maintain LP SmartSide’s performance in Atlanta’s humid conditions:
- Regular inspections: Check annually for any signs of moisture issues, particularly after severe weather events
- Cleaning: Gentle washing with low-pressure water and mild detergent to remove pollen, mildew, and airborne contaminants (especially important in spring)
- Painting: Repaint every 5-7 years with high-quality acrylic latex exterior paint
- Vegetation management: Keep shrubs and plants trimmed back from siding to reduce moisture retention
- Gutter maintenance: Ensure gutters remain clear to prevent water overflow onto siding
Cost Analysis for Atlanta Homeowners
For an average 2,500 square foot Atlanta home, here’s what you can expect to invest in LP SmartSide:
- Materials: $2.50-$5.00 per square foot (depending on style selected)
- Professional installation: $4.50-$6.00 per square foot
- Total project cost: $17,500-$27,500 for complete installation
- Long-term value: When factoring in durability and reduced maintenance compared to traditional wood, LP SmartSide typically offers better lifetime value despite higher initial costs than vinyl
Environmental Considerations
For environmentally conscious Atlanta homeowners:
- LP uses sustainable forestry practices and wood sourced from SFI-certified forests
- Manufacturing process uses the entire log, minimizing waste
- Lower weight reduces transportation carbon footprint compared to cement-based products
- Engineered to last longer than traditional wood, reducing replacement frequency
Ratings for Atlanta Climate Performance
| Performance Category | Rating (out of 5) | Notes |
|---|---|---|
| Humidity Resistance | 4.5 | Excellent overall; slight concerns in extreme moisture areas |
| Heat/UV Resistance | 4.0 | Good with proper painting maintenance |
| Storm Resistance | 4.5 | Exceptional impact resistance for Atlanta’s occasional hailstorms |
| Maintenance Requirements | 3.5 | Better than wood, more demanding than vinyl |
| Aesthetic Options | 4.5 | Excellent variety of styles suitable for various Atlanta architectural styles |
| Value for Money | 4.0 | Higher initial investment but good long-term value |
| Overall Rating | 4.3 | Excellent choice for Atlanta’s climate conditions |
Who Should Choose LP SmartSide in Atlanta?
Ideal For:
- New construction homes seeking durability against Atlanta’s humidity and storms
- Homeowners replacing deteriorated wood siding who want the wood look without the maintenance headaches
- Properties in heavily wooded areas where moisture resistance is paramount
- Homes in historic districts where authentic wood appearance is desired but with modern performance
- Homeowners planning to stay 10+ years who will benefit from the long-term durability
Less Suitable For:
- Budget-focused projects with immediate cost concerns (vinyl may be more appropriate)
- Homes in areas with strict fire codes (fiber cement might be preferred)
- Homeowners seeking zero-maintenance solutions (vinyl requires less upkeep)
Final Verdict: LP SmartSide for Atlanta’s Humid Climate
After extensive evaluation of LP SmartSide’s performance across various Atlanta neighborhoods, I can confidently recommend it as an excellent siding choice for our humid climate. Its engineered resistance to moisture, impact protection during storms, and authentic wood appearance make it particularly well-suited to Atlanta’s unique challenges.
The SmartGuard® treatment process specifically addresses the moisture concerns that plague many Atlanta homes, while the product’s structural design helps it withstand our occasional severe weather events. While it requires some maintenance, the requirements are significantly less demanding than traditional wood siding.
For Atlanta homeowners planning to stay in their homes long-term, the initial investment in LP SmartSide typically pays dividends through reduced maintenance costs and excellent durability. Just be sure to work with experienced installers familiar with the proper techniques for our climate to maximize your siding’s performance and longevity.
With proper installation and maintenance, LP SmartSide provides Atlanta homeowners with a beautiful, durable exterior solution that stands up to our challenging climate conditions for decades.