SOLARGLASS NEW CONSTRUCTION GUIDE

Official Guide v3 /2020 Solarglass Roof Tesla Solarglass roof is a beautiful and durable roof that also generates clean energy. Tesla’s energy producing are visually indistinguishable from non-energy producing tiles, creating an aesthetically unparalleled solar energy solution. The combination of energy producing and non-energy tiles allows a Solarglass roof to be functionally integrated and customizable to a variety of roof shapes and sizes.

This document defines the build guidelines of new home construction optimized for a Solarglass roof installation. Tesla provides this information without any guarantees or warranties of any kind, express or implied. This New Construction Guide is intended to aid you in your efforts in building a home that is compatible with our Solarglass product, but specifically disclaims any representations as to how the guidelines will apply to a particular home. Following these guidelines will not guarantee that Tesla will install Solarglass at the home. You and your contractor or homebuilder are always solely responsible for compliance with local laws and building codes.

For more product or installation level information, refer to:

• Solarglass Roof Installation Manual • Solarglass Roof Datasheet • Solarglass Roof Frequently Asked Questions • Solarglass Roof AHJ FAQ • Tesla Product Suite Prewire Guidance

02 Official Guide Solarglass Roof v3 /2020 Structural Solarglass tiles are mounted on a self-adhering underlayment over Requirements bare solid or closely fitted sheathing. The net installed weight of Solarglass modules is less than 4 pounds per square foot. The primary materials of Solarglass tiles are glass, polymers, fiberglass and silicon. Non-PV glass and metallic flashings are used at transitions, edges and penetrations.

Tesla Solarglass components are tested to roofing specific standards including fire, wind and impact resistance. A complete list of certifications is available in the Solarglass Roof Datasheet.

1 Pitch Range 2:12 — 20:20 Pitches below 2:12 are not supported Pitches over 12:12 require additional considerations

2 Tile Net installed weight of Textured Tile: 3.4 psf Installed weights include all components of system above roof sheathing

3 Roof Sheathing Tesla Solarglass is installed over bare solid or closely fitting sheathing, as follows:

• Exterior grade plywood: 15/32” nominal thickness or greater • OSB: 7/16” nominal thickness or greater • Solid sheathing boards: minimum of 1’x4’, closely fitted

Adhere to all applicable local building and structural codes for sheathing materials, ratings, and thickness requirements.

4 Snow Load Tesla Solarglass is rated up to 60 psf

Tesla Solarglass is engineered to shed snow for typical installations. Design for incident snow shed in moderate and high-snow regions is recommended. Where detailing for snow retention is required, contact your Tesla energy specialist.

5 Wind Rating Tesla Solarglass is rated Class F, the highest-attainable wind rating under ASTM D3161. Adhere to all applicable local building and structural code requirements.

6 Ice Damming Underlayment complies with ASTM D1970 and is approved nationwide as a self-adhering ice and water barrier

7 Fire Rating Tesla Solarglass carries a UL 790 Class A fire rating

03 Official Guide Structural Requirements v3 /2020 Flashings and Roof Features 1/2

Each Solarglass roof is unique in design and is constructed with a high level of craftsmanship by field engineers. During a Solarglass roof installation, specifically engineered flashing tiles are integrated with the power producing tiles to improve the aesthetics of the structure. The ideal roof planes for Solarglass tiles are continuous rectangular areas with limited architectural features. Tesla will work with you on installation specifics and equipment locations if special features are desired.

Tesla Solarglass complies with the 2019 CEC Building Energy Efficiency requirements of Section 150.2(b)1Hi(a) (sometimes called the “cool roof” requirement) due to its incorporation of an airspace between the roof deck and roof covering.

Solarglass modules and mounting components stack up approximately 1.6” from the roof deck and require a fastening clearance of 1.75” into the roof surface. Flashings require the curb height to be a minimum of 7” for roof mounted equipment and obstructions. The electrical service mast requires a 16” minimum clearance of drip loop from roof deck.

1.6” [41 mm]

Not Supported

Pitches below 2:12 and above 20:12

Non-linear roof surfaces, edges and walls

Angled

Off-the-shelf vents (Solarglass uses soffit and ridge venting)

Copper flashings, gutters and roof features

04 Official Guide Flashings and Roof Features v3 /2020 TRANSITION RAKE

VALLEY RIDGE

HEAT VENT SKYLIGHT

HIP DRAIN WASTE VENT

*Flashings subject to change Flashings and Roof Features 2/2

Complexity Considerations

Dutch

Dutch gutter

Barge

Solar tubes

Awning attached to eave

Trellis attached to main roof deck

Vaulted ceiling

Exposed eaves and

Roof mounted equipment (Solar Thermal, satellite dishes, HVAC Unit)

Skylight (curb height below 7”)

Penetrations within 12” of hip/valley/ridge centerline, or within 12” of each other

Small mounting planes between hip and valley

Excessively broken-up roof planes

Flat roof junction with pitched roof plane

<1 ” decking thickness in exposed areas (total stack-up)

06 Official Guide Flashings and Roof Features v3 /2020 Site and Electrical Specifications

A Solarglass roof functions in fundamentally the same way as traditional roof-mounted PV systems. Sunlight is converted to DC electricity at each individual module. Each module is individually connected to a diode in series “strings” of up to four modules side-by-side. The Diode Harness directs the collected energy to a typical string inverter. All electrical components are tested to applicable standards, including fire, electrical, mechanical, and rapid shutdown.

In the northern hemisphere southern facing roofs should be prioritized for the placement of energy producing tiles of Solarglass. While the Solarglass system operates efficiently in many orientations and roof slopes, southern, southwestern, and southeastern facing roofs between 4:12 and 8:12 pitch should be prioritized for the location of the energy producing tiles.

Energy-producing tiles cannot interact with metal flashings. Wherever possible, obstructions such as plumbing or other vents, skylights, chimneys, etc should be avoided on these roof planes to achieve the greatest amount of solar power.

A reasonable assumption for the amount of energy-producing tiles that will fit on a roof plane is between 4 and 7 watts per square foot, depending on the complexity of roof and number of obstructions. 1,000 square feet of roof area can typically accommodate between 4 and 7 kW.

Tesla Solarglass utilizes a typical DC-AC string inverter, and is compatible with Tesla Powerwall and Tesla Home Charging equipment. See Tesla Product Suite Prewire Guidance for additional information on how to best design the home’s electrical system for compatibility with Tesla products.

Unobstructed Roof: Homes with unobstructed roofs are those where energy-producing tiles do not interact with any other building components other than the roof deck. Obstructions include: sidewall siding and stucco, headwall siding and stucco. This roof type allows a more direct installation process than rooftops with interacting features.

Obstructed Roof: Homes with obstructed rooftops are those with features that directly interact with energy-producing tiles, such as gable sidewalls, headwalls, or unusual architectural features. This roof type requires a more complex installation schedule to prohibit additional trades interfering with the roof during tile installation. Sidewalls, headwalls, and other areas flashed directly onto or integrated with the finish roof surface are required to be complete before tile installation can begin. Siding, stucco work, painting, spraying and staining will not be permitted above any installed tiles.

07 Official Guide Site and Electrical Specifications v3 /2020 Construction Timeline

Sharing your construction schedule will aid our teams in planning a smooth and timely Solarglass roof installation. Once Tesla receives all supporting documentation of your build, we will provide an amended schedule outlining when you can anticipate us to begin and finish work.

• Tesla must receive a complete set of building plans, including: site plan, roof plan, roof framing plan, and electrical information.

• A contract with Tesla should be signed minimum 90 days prior to sheetrock installation.

• Tesla should receive a comprehensive build schedule from the builder.

The average project duration is approximately 6-15 weeks. Tesla is responsible for performing the following tasks:

1-30 Days • Local building and electrical permits submitted and issued (Tesla is responsible for solar and other Tesla product permitting only)

4-6 Weeks • Utility pre-installation approval (where applicable)

2-4 Weeks • Material procurement (timeframe dependent on location)

Ave. 20 Days • Installation

Ongoing • Inspections (roughs and finals, as required)

1-6 Weeks • Utility Interconnection Application Submittal (exact timeframe dependent on utility)

PROJECT TIMELINE 6-15 weeks total Contract Signed

Permits 1-30 DAYS

Utility Pre-Approval 4-6 WEEKS

Material procurement 2-4 WEEKS

Installation AVE. 20 DAYS

Inspections ONGOING

Utility Interconnection 1-6 WEEKS

Utility grants permission to operate

Official Guide Construction Timeline v3 /2020 Builder Milestones

All these items must be completed prior to Solarglass roof installation:

• All necessary permits from local jurisdiction must be issued and any required pre-installation approval from electric utility has been granted

• Any roof features above the lowest eave which require siding, stucco, paint, masonry, or masonry veneers must be complete

• Any pitched roof to low pitched roof intersections (pitches above 3:12 to less than 2:12) must be complete

• Any unusual roof features (built-in gutters, gable eyebrows, , etc) must be installed

• Sidewalls, headwalls, and alternate flashings are installed and completed to building’s finish specifications (obstructed roofs only)

• Any additional trades’ ground work that would interfere with Tesla’s access to the roof during installation must be complete

• Any painting, spraying, staining or related activity whose means of application may damage roof tiles must be complete

• Any underground electrical work must be complete

• Roof framing and sheathing must be 100% complete, including any necessary sheathing inspections

• Fascias must be installed, wrapped, or painted to building’s finish specifications

• All roof penetrations must be made (plumbing, heating, ventilation, etc)

• Skylight openings are framed and in final locations

• Building egress features have been installed (locking doors and windows)

• Final electric meter location has been established

• Main electrical panel has been installed and wired (not temporary service)

• Final locations for inverter, Powerwall (if applicable), and all additional energy components have been determined and approved by client

• Rough electrical is complete, including internal conduit installation for Solarglass wiring as per Tesla’s specifications

• Electric meter installed, if required by utility

Official Guide Builder Milestones v3 /2020 Contact Tesla Anytime

Contact our Energy Specialist Team for assistance: 877.373.7652

You can use Tesla mobile app or visit www.tesla.com/teslaaccount to find additional resources and follow your energy production in real time.

Document #1568655-00-B

Official Guide www.tesla.com v3 /2020