Hardware
How should solar be mounted on a tiled roof in South Africa?
Use roof-hook or rail systems rated for your tile profile, seal every penetration to the roof warranty’s satisfaction, respect wind and structural loads, and never treat “we just screw through the tile” as a method. Bad penetrations leak for years; good ones disappear into the CoC pack with photos.
Updated 27 October 2026 · Illustrative ranges — not a formal quote, credit decision or legal advice.
Answer first: Ask for the mounting brand, tile-hook model, sealing method and who stands behind the roof if it leaks after year 3. Concrete tiles, clay tiles and slate each need different hardware — roof suitability · penetrations · roof space · install time.
What a competent tile mount looks like
- Hooks that load the rafter / batten correctly, not only the tile lip.
- Flashings or OEM seals compatible with the tile profile.
- Rails torqued to spec; mid/end clamps matched to module frames.
- Walkable paths left for future cleaning without crushing tiles — cleaning.
Wind, height and estate rules
Coastal and Highveld thunderstorm winds punish shallow hooks. Estates may limit array height or colour. Structural questions on older roofs belong with an engineer, not a WhatsApp guess — ground mount alternative · carport + EV · estate / HOA.
Leak triage if something goes wrong
- Photograph the wet patch and the array bay above it.
- Call the installer before a random roofer drills “extra holes.”
- Keep the mounting invoice and roof-warranty letter for insurance — claims · hail / storm.
Quote lines to insist on
| Line | Why |
|---|---|
| Mounting brand + hook SKU | Spares and warranty |
| Sealing method named | Stops “silicone forever” hand-waves |
| Roof warranty letter | Buyers and insurers ask |
| Bird-proofing option | Tile cavities attract pigeons — bird proofing |
Related: read a quote · choose installer · selling with solar.
Asbestos and fragile coverings
Suspect asbestos-cement sheets are a different project — licensed handling, not a weekend mount. If the quote is silent on roof type after a site visit, pause — DIY risks · red flags.
Homeowner folder to keep with the CoC
Store the quote annexures, OEM manuals, serial photos, export-limit screenshots and metro reference letters together. When a future technician or buyer inherits the plant, that folder beats scattered WhatsApps — choose installer · selling with solar · warranty transfer.
Re-check fixed charges and tariff codes after any meter change so savings models stay honest — fixed charges · 2026/27 tariffs · metro tariffs hub · bill still high.
Field notes from SA handovers
At commissioning, ask the partner to demonstrate the behaviour described on this page, photograph settings, and confirm NRS-listed SKUs match the invoice. Refuse non-listed gear and export promises that ignore your metro’s live PDF — red flags · NRS list · SSEG · read a quote.
Concrete vs clay vs slate — different failure modes
Concrete interlocking tiles tolerate more traffic but crack when walked with hard soles on hot afternoons. Clay tiles chip at the nibs if hooks are forced. Slate demands specialist hooks and usually a higher labour band. If the quote uses one generic “tile kit” after a five-minute glance from the driveway, ask for a second site visit — roof suitability · install time · DIY risks.
Wind uplift on SA roofs
Coastal gales and Highveld microbursts lift poorly anchored rails. Mid-clamps and end-clamps must match module frame thickness; missing end-clamps are a classic inspection fail. Ask for the mounting brand’s wind-load table for your eave height and terrain category — not a shrug — hail / storm · surge / lightning · inspection fails.
Worked leak-response playbook
- Contain indoor water; photograph ceiling and roof bay.
- Call the solar installer first — random roofers sometimes cut DC tails.
- Isolate only if the electrician instructs; do not yank MC4s in the rain.
- Open the insurance claim with serials, CoC and mounting invoice — claims · CoC.
IBR and mixed roofs
Many SA homes mix tiled street elevations with IBR over garages. Carport or garage IBR planes can host a cleaner array when the tiled plane is fragile or shaded — carport + EV · ground mount · east–west roofs · tree shade.
Buyer and bank paperwork
When you sell or raise a further advance, conveyancers and banks increasingly ask for the roof letter and as-built photos. Keep them with SSEG approvals and OEM warranties — bond finance · warranty transfer · property value.
Scaffold, access and neighbour courtesy
Tile work needs stable access. Thin quotes that skip scaffold on steep Cape or KZN roofs often recover the cost later as “variations,” or worse, as broken tiles. Confirm access, tile-replacement contingency and who buys matching tiles if a colour batch is discontinued — install time · read a quote.
Tell neighbours when noisy cutting or tile lifts will happen. Estate inductive rules may require inducted contractors before anyone steps on common roofs — estate / HOA · sectional title · inspector tips.
Decision checklist before the deposit
- Same one-page brief to every partner: 12 months of kWh or tokens, tariff code, roof/site photos, Stage essentials list.
- Two matched quotes with Incl. VAT grand totals and named SKUs.
- Export-limit and meter plan written while SSEG queues.
- CoC, dual-supply labels and OEM warranty registration named as deliverables.
- Refuse non-listed gear and export promises that ignore your metro PDF.
Cross-check: read a quote · choose installer · red flags · NRS list · SSEG · SSEG cost · fixed charges · 2026/27 tariffs · metro hub · check a quote · get quotes.
After commissioning — thirty-day habit
For the first month, skim the hybrid app every few days: self-use share, unexpected grid import on sunny afternoons, battery SoC floors before evening Stage, and any fault counts. Photograph settings after the first firmware touch. Keep metro statements beside the monitoring export so “savings” stories stay honest when fixed charges move — monitoring · bill still high · monthly savings · SoC settings · Stage strategy · selling with solar · warranty transfer · insurance.
Related reading on this desk
Mounting quality shows up years later in leaks, buyer packs and insurance photos. Keep this page beside bird-proofing, ground-mount alternatives and roof-warranty letters — bird proofing · ground mount · carport · roof space · roof suitability · penetrations · hail / storm.
Practical SA homeowner notes
Write the open questions from this page onto the site-survey form before anyone quotes. South African installs fail more often on missing paperwork, wrong board placement and ignored metro rules than on brand slogans. Keep Incl. VAT totals, NRS-listed SKUs, export-limit screenshots and CoC deliverables in one folder with serial photos. If a partner cannot show those artefacts at handover, pause the final payment until they can — that discipline protects Stage cover, insurance claims and resale far better than a glossy brochure.
Revisit the live metro tariff PDF and OEM warranty sheet whenever you expand panels, add a wallbox or change prepaid status. Numbers on this desk are illustrative snapshots dated around 27 October 2026; your erf’s fixed charges, feed-in cents and inspection queue are the figures that decide the rand outcome. When in doubt, send the same one-page brief to two installers and compare their annexures line by line rather than their homepage claims.
- Photograph settings after every service visit or firmware change.
- Log Stage SoC floors for two weeks before changing reserve knobs.
- Confirm dual-supply labels still match the as-built single-line.
- Update the insurer schedule when hardware or capacity changes.
- Store monitoring passwords with the conveyancing pack for a future sale.
Tile roofs need the right hooks — or they leak
Concrete and clay tiles demand manufacturer-matched roof hooks, flashed penetrations, and torque to spec. Improvised timber blocks and silicone blobs fail in the first Cape winter. Name the mounting brand on the quote and require a waterproofing warranty that survives a leak claim.
Walk the roof after install in rain season one; mark any damp ceilings immediately. Keep before/after photos of each penetration. A cheap rail job that voids the roof warranty costs more than the “savings” on brackets.
Replace any cracked tiles found during install before rails go down. Hiding damage under modules turns a R200 tile into a leak claim against the solar crew.
Quick questions
Will solar void my roof warranty?
Not if penetrations follow an approved system and you keep the installer’s roof letter — demand that letter.
Can I mount on slate?
Sometimes with specialist hooks; expect higher labour and refuse improvisation.
Is rail-less mounting OK?
Only with OEM-rated systems for your module and roof — not generic L-brackets.