Interlock’s reflective surface actually reduces your attic's temperature during summertime heat, saving you up to 25% on your cooling costs†.
† As per Cool Roof Rating Council (CRRC) and Oak Ridge National Laboratories (ORNL)
Authentic Cedar Shingle Look, Lightweight Metal Durability.
Anchorage homeowners face demanding roofing conditions, from coastal moisture and salt air to heavy snowfall, high winds, and prolonged freeze-thaw cycles. Alaska’s rugged geography and extreme seasonal shifts require roofing systems engineered to perform reliably in harsh environments, making Interlock Metal Cedar Shingle Roofing an ideal solution.
Interlock Metal Cedar Shingle roofing delivers the timeless character of traditional cedar with the advanced performance Anchorage’s climate demands. Designed for durability, energy efficiency, and sustainability, Interlock offers a refined balance of architectural beauty and long-term protection—without the rot, cracking, or maintenance associated with real cedar.
Anchorage’s weather patterns are as demanding as its landscapes. Coastal exposure brings salt air and powerful winter storms, while inland areas experience prolonged cold, heavy snowfall, and repeated freeze-thaw cycles. High winds, ice damming, and extreme seasonal temperature shifts place constant stress on roofing systems throughout the region.
Traditional cedar shingles, while visually appealing, were never engineered for these conditions. Interlock’s four-way interlocking aluminum roofing system excels where conventional cedar materials fall short:
★★★★★
Your roof shingles versus a hurricane! — Just writing to let you know that I like your roof shingles. We bought our house in Anchorage 3 years ago. It already had your shingles on it when we purchased. Even though we contacted you too late to transfer the warranty, the shingles held up well in 124mph winds last week in the Anchorage mountains.
Brandon K.
Anchorage, AK
Alaskans value durability, efficiency, and responsible building choices. In Anchorage’s demanding climate, your roofing system must perform for decades while minimizing environmental impact. Interlock Metal Cedar Shingle Roofing delivers long-term performance while supporting sustainable construction principles.
Recyclable Materials: Our aluminum roofing systems often contain up to 95% recycled content and are fully recyclable at end of life—supporting long-term material reuse and reduced landfill impact.
Energy Efficiency: Interlock Metal Cedar Shingle Roofing is engineered to improve energy performance by reflecting solar heat and helping stabilize attic temperatures, reducing heating and cooling demands during Anchorage’s extreme seasonal shifts.
Solar Integration: Built-in mounting compatibility allows for seamless solar panel installation, supporting Alaska homeowners who choose renewable energy solutions.
Lifetime Durability: Never Re-Roof Again® eliminates the waste and resource consumption associated with frequent roof replacements—providing a sustainable, long-term roofing solution built for Alaska living.
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
Interlock® Cedar Shingle
All Interlock Lifetime Metal Roofing Systems are protected with the Alunar® Coating System. The cool roof pigment technology helps reduce heating and cooling costs for your home.
Interlock’s reflective surface actually reduces your attic's temperature during summertime heat, saving you up to 25% on your cooling costs†.
† As per Cool Roof Rating Council (CRRC) and Oak Ridge National Laboratories (ORNL)
| Performance Factor | Interlock Cedar Shingle | Natural Slate | Asphalt Shingles | Cedar Shakes | Clay/Concrete Tile |
|---|---|---|---|---|---|
| Weight (per sq ft) | 0.7 lbs - No reinforcement | 9-12 lbs - Requires structural upgrades | 2.5-4 lbs | 3-4 lbs | 6-10 lbs - May need reinforcement |
| Lifespan | Lifetime transferable warranty | 75-100+ years with maintenance | 15-25 years | 20-30 years | 50-100 years |
| Wind Resistance | 180+ mph (tested) | 60-80 mph | 60-90 mph | 60-80 mph | 125+ mph (interlocked) |
| Hail Resistance | Class 4 (UL 2218) | Poor - cracks/breaks | Class 1-3 | Poor - dents/splits | Class 3-4 |
| Fire Resistance | Class A (non-combustible) | Class A | Class A with treatment | Requires treatment (Class B-C) | Class A |
| Snow Performance | Excellent - sheds completely | Poor - heavy accumulation | Moderate shedding | Poor shedding | Good - moderate shedding |
| Energy Efficiency | Cool Roof certified | Poor - heat absorption | Poor reflection | Moderate insulation | Good - natural thermal mass |
| Solar Panel Compatibility | Engineered mounting points | Difficult - damage risk | Moderate compatibility | Difficult installation | Moderate - mounting challenges |
| Maintenance Requirements | Low maintenance | Annual inspections/repairs | Regular replacement (5-7 yrs) | Frequent treatment/replacement | Periodic cleaning/repairs |
| Rust/Corrosion Resistance | Excellent - aluminum/coated | Iron content rusts | N/A | N/A | Excellent |
| Coastal Resistance | Excellent - marine grade | Poor - salt corrosion | Poor - moisture damage | Poor - rot/decay | Good |
| Earthquake Safety | Excellent - lightweight | Poor - heavy/structural risk | Good | Good | Poor - heavy |
| Moss/Algae/Lichen Resistance | Excellent - smooth surface | Poor - porous surface | Poor - organic growth | Very poor - natural material | Moderate |
| Pest/Wildlife Resistance | Excellent - sealed system | Good | Moderate | Poor - attractive to pests | Good |
| Aesthetic Versatility | 9 colors - authentic slate look | Natural variation | Limited colors | Natural cedar only | Various colors/styles |
| Installation Complexity | Moderate - trained installers | Very high - specialized crews | Easy - standard roofers | High - skilled craftsmen | High - heavy material |
| Warranty Coverage | Lifetime transferable | Workmanship only (10-20 yrs) | 20-30 year limited | 20-30 year limited | 30-50 year limited |
| Environmental Impact | 95% recycled aluminum content | Natural - high transport impact | Petroleum-based - landfill waste | Sustainable but short-lived | Natural - energy-intensive |
| Noise Insulation | Good with proper underlayment | Excellent - natural mass | Good | Excellent | Excellent - thermal mass |
| Insurance Discounts | Yes - fire/wind/impact ratings | Limited | Limited | No - fire risk | Yes - fire/wind resistance |
Best-in-Class Performance: Interlock delivers top-tier performance across critical roofing categories, making it a proven solution for Anchorage’s demanding conditions—where snow loads, high winds, freeze-thaw cycles, and coastal exposure test every roofing system.
No Compromises: Traditional materials all fall short in Alaska’s climate—natural slate offers beauty but lacks thermal flexibility, asphalt shingles wear quickly, cedar shakes require constant maintenance, and tile adds excessive structural weight. Interlock delivers consistent, high-level performance without sacrificing architectural appeal.
Future-Ready Investment: As weather patterns grow more extreme—with heavier snowfall, stronger winter storms, and wider temperature swings—Interlock’s superior wind resistance, fire protection, and thermal performance provide long-term confidence.
Built for Alaska Living: Zero maintenance supports busy lifestyles, while recyclable materials and energy-efficient design align with responsible, long-term building practices.
This comparison explains why Anchorage homeowners increasingly choose Interlock Metal Cedar Shingles as a superior roofing investment—engineered to excel where conventional materials struggle.
Yes—Anchorage’s long wet/snow season plus shaded areas can drive moss/lichen growth and moisture retention, which increases the need for periodic cleaning/treatments and inspections. Interlock Aluminum Cedar Shingles don’t rot or absorb moisture like wood, and the Alunar® coating is engineered to protect the roof surface from the elements.
Industry maintenance guidance notes cedar can be vulnerable to mold/moss/lichen and often needs cleaning solutions or preservatives to retard growth. Interlock avoids wood fiber entirely—you get the cedar look in aluminum, so you’re not fighting biological growth degrading the material the same way.
When moisture sits in wood, freeze–thaw can contribute to splitting, cupping, and accelerated wear over time (especially when combined with ongoing dampness). Interlock’s aluminum profile isn’t susceptible to wood rot/splitting, and the four-way interlocking design is built for a stable, weather-tight assembly.
Yes—Anchorage documents describe ice damming as a recurring, predictable issue that can cause water intrusion and hazards. Interlock helps by shedding snow more efficiently than many rough, moisture-holding surfaces, and the interlocking metal system supports a weather-tight roof design (insulation/ventilation still matter).
Anchorage plan review materials reference designing for snow and wind per building code standards. Interlock’s four-way interlocking aluminum system locks panels together, which is a strong advantage for wind resistance versus individual cedar pieces that rely heavily on fasteners and condition of the wood.
IBHS notes untreated cedar shakes/shingles are unrated for fire performance, and higher fire ratings can require treated products and specific assemblies. Interlock Aluminum Cedar Shingles are non-wood metal roofing, helping homeowners avoid the variability of wood treatments and the ongoing concern of wood combustibility.
Yes—cedar naturally weathers and changes appearance, and matching replacements later can be difficult. Interlock’s stamped cedar texture plus factory finish with the Alunar® Coating System provides a consistent, durable appearance without relying on the natural aging of wood.
Anchorage plan review guidance highlights meaningful snow load requirements—roof assemblies must be appropriate for local conditions. Interlock’s aluminum system is lightweight versus many traditional heavy roofing options, supporting strong performance without adding unnecessary load.
Interlock describes Alunar® as engineered to protect against corrosion and reflect solar energy/reduce surface temperature. In Anchorage, that means better defense against moisture-driven corrosion risk and potential energy-performance benefits during sun exposure—especially on clear winter days.
Cedar can look great, but it often comes with a “maintenance schedule” (cleaning, preserving, treating growth, replacing damaged pieces). Interlock gives the cedar aesthetic in a four-way interlocking aluminum system—engineered for long-term, weather-tight performance with far less ongoing upkeep, plus added surface protection from Alunar®.
Ready to protect your Anchorage home with cedar shingle beauty and modern performance? Contact Alaska's premier Interlock installer today. We understand Alaska's unique challenges and deliver solutions that work for Anchorage living.
Serving Anchorage, and communities throughout the greater Anchorage area with premium Interlock metal cedar shingle solutions designed for our unique climate and lifestyle.
State Contractor License #310704
All Rights Reserved. Interlock Industries (Alaska) Inc.
Interlock®, Interlock Lifetime Roofing Systems®, Alunar®, Interlock Arrow Sign®, and Never Re-Roof Again.® are registered trademarks of I.E.L. Manufacturing Ltd. and are used under license. State Contractor License No.310704.
Promotion: *Cannot be combined with any other promotional offers or discounts. A 10% down payment is required for financing 1 Year No Payments, No Interest Offer. Offer valid for this promotion only. Discount cannot be applied to previous purchases.
Price discounts depend on size and location of your home. Must purchase an Interlock Lifetime Metal Roofing System to qualify. Available only at time of purchase. †On Approved Credit. Offer available only in Alaska, United States. Contact a Customer Account Specialist for details. Offer expires .