SolarpunkHomes
Sign inCall us · +44 7510 081687
Solar
Solar · Fitting

Is my roof strong enough for solar panels?

Short answer

Most modern trussed and simple cut roofs can take panels, but MCS requires a competent check of loads. A structural engineer is needed for hips and valleys, asymmetric roofs, signs of sagging, altered timbers, heavier re-roofs, pitches under 30 degrees or snow-trapping features, and for ballasted flat-roof systems.

Last checked 24 September 2026 · 1 source

In more detail

  • MIS 3002 Table 1: trussed rafter method uses 0.785 kN/m2 dead load minus covering.
  • 5.9.6 unusual structure list.
  • Panels kept 400 mm from edges unless extra measures (5.9.7).

The facts, dated

  1. 01
    Modules not within 400 mm of any domestic roof edge unless specific measures taken — 400 mm

    standard · UK · checked 24 September 2026 · MCS

  2. 02
    Trussed rafter check assumes typical design dead load — 0.785 kN/m2

    standard · UK · checked 24 September 2026 · MCS

Sources

Last checked: 24 September 2026