Hmmm.... Besides people, lots of other things are also sensitive to radiation. Unprotected polymers (plastic pipes, conduits, wiring insulation, pneumatic tires, door seals) initially brokedown rather quickly under UV radiation on Earth: that's why tires and electric cords are protected with carbon black and other opaque pigments on Earth. With Mars' thin atmosphere, I suspect the UV exposure is significantly worse even though Mars is further from the Sun than the Earth is. I wonder if a LOT more pigment or even mineral shielding on wires, plastic pipes, door seals, etc. will be needed on Mars? Plastic windows would be attacked as well -- wonder if something like "leaded clear acrylic" can be made for large windows, rather than the much heavier leaded glass? What are windows on current spacecraft made from, anybody know?
Sounds like we'd better send a DitchWitch for making trenches with the first long-term visitors! (Though, the perchlorates in the Mars soil may be a chemical attack/corrosion hazard too??) One supposes small pump houses and electric/solar panel control stations will have to be sheltered from radiation with stone or bricks to protect the wiring's insulation, circuit boards, electrical equipment, and the workers maintaining them during the day. Perhaps a lot of the human surface work could be done at night, simply to avoid the harsher daytime radiation? Having heavier "grunt" surface work done during the day by radio-controlled drone rovers might help avoid humans' radiation overexposure.
Perhaps carbon fibers incorporated in structures and insulation could 'kill two birds with one stone'? That is, provide lightweight structural strength and radiation resistance, since (at least the cheaper pitch-based) carbon fibers are very black like the carbon black used for tire/electric cord's UV blockers. Musings. . . .