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RESOURCES & GUIDES

Spec sheets, install guides, and background reading for homeowners, contractors, and builders considering BIPV roofing.

Technical Documents
PS DARK 400 DOWNLOADS
PS Dark 400 Data Sheet
Product specifications, electrical data, and certifications
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Quick Install Guide
Step-by-step installation reference for roofing professionals
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Industry Reading
BIPV IN CONTEXT
Market
IEA
Solar PV Is Now the Cheapest Electricity in History
The International Energy Agency tracks BIPV adoption trends alongside broader solar market data—Europe leads in building-integrated installs per capita.
Read Report →
Research
NREL
BIPV Market and Technology Status in the United States
NREL's analysis of the US BIPV market identifies permitting friction, installer training gaps, and consumer awareness as the primary barriers to adoption.
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Europe
Fraunhofer ISE
Why Europe Adopted Building-Integrated PV First
Germany's Fraunhofer Institute has studied BIPV for decades. Feed-in tariff structures and aesthetic standards pushed European builders toward integrated solar long before the US market followed.
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Education
US Dept of Energy
What Is BIPV? Building-Integrated Photovoltaics Explained
DOE's primer on the difference between bolt-on solar panels and true building-integrated systems—the roofing material and the solar cell are one and the same product.
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Tax
IRS
Federal Investment Tax Credit for Commercial Solar
The 30% ITC under IRA Section 48 applies to qualifying solar energy property placed in service by business entities including LLCs, sole proprietors, and commercial property owners.
IRS Reference →
Industry
SEIA
BIPV: The Next Frontier for Solar Contractors
The Solar Energy Industries Association covers how contractors can position BIPV roof replacement as a premium offering for commercial and residential clients.
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Common Questions
FAQ
Building-integrated photovoltaics (BIPV) means the solar cell is the roofing material—it replaces the roof, not just sits on top of it. The PS Dark 400 is a structural roofing tile that generates power. Traditional bolt-on panels are mounted above an existing roof, adding weight and penetrations. BIPV eliminates the rack system entirely and has a substantially lower profile.
The 30% federal ITC (Section 48 of the IRA) applies to business entities—LLCs, sole proprietors with a home office, commercial property owners, and landlords with rental properties. If your install qualifies as business property, you get 30% of the full installed cost as a federal tax credit. Always confirm with your CPA before filing.
Both are BIPV systems, but the PS Dark 400 uses a full-panel monocrystalline cell format rather than Tesla's interlocked tile system. This typically means higher efficiency per square foot, faster install time for experienced roofers, and a simpler supply chain. The PS Dark 400 is sold through roofing distributors and contractors rather than direct-to-consumer, making it more accessible for commercial and multi-family projects.
For an experienced roofing crew, a residential install typically runs 2 to 4 days for the roof deck plus electrical rough-in. Commercial projects vary by scope. Your HardwiredRoof installer can give you a project-specific timeline after a site assessment.
Individual PS Dark 400 tiles can be replaced without disturbing the rest of the roof. The system allows a contractor to pull and replace a single damaged section—a significant advantage over traditional bolt-on systems where a failed panel can complicate waterproofing around the mounting hardware.
You need both a roofing license and a solar contractor license (or a licensed electrical subcontractor for the electrical portion). HardwiredRoof provides product-specific installation training and technical support for new installers. Contact us to discuss onboarding for your crew.
Currently the PS Dark 400 is available in the dark slate finish shown on this site. Additional colorways may be available in the future—contact us for the latest product availability.

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