Selecting the optimum amount of fenestration area requires the designer to look at lighting, heating, cooling, and fan energy.
(Selecting the optimum amount of fenestration area; requires; the designer; to look at lighting, heating, cooling, and fan energy) (the designer; to look; at lighting, heating, cooling, and fan energy)
Selecting the optimum amount of fenestration area the designer
requires to look
the designer to look at lighting, heating, cooling, and fan energy
at lighting, heating, cooling, and fan energy