Is it necessary to have headers on a new wood frame construction to install solar panels?

No, it is not necessary to add headers to the wood frame of a new house.
The rafters are used directly as a support for the installation system, see the installation system manual for more details.

See also the list of installation systems compatible with our DualSun panels.

>To go further : What mounting systems can be used to install DualSun SPRING panels on roofs ?