Every answer, traced back to its source.

For the persistent/transient design situation, the characteristic snow load on the roof, $s$, is given by relation (4.1) 1:

where 2:

• $\gamma_{Is}$ is the importance-exposure factor for snow action;
• $\mu_i$ is the roof snow load shape coefficient (Chapter 5);
• $s_k$ is the characteristic ground snow load at the site, in kN/m²;
• $C_e$ is the exposure coefficient and $C_t$ the thermal coefficient.

The load acts vertically on the horizontal projection of the roof 3. For exceptional drifting treated as an accidental action, use relation (4.2), $s = \gamma_{Is}\,\mu_i\,s_k$, instead 4.

$\gamma_{Is} = 1.15$, for a hospital with emergency/ambulance services and surgical departments.

Such hospitals are in importance-exposure class I: constructions with essential functions, whose integrity during a major natural or man-made hazard is vital for civil protection 1. Table 4.1 gives class I an importance-exposure factor for snow action of $\gamma_{Is} = 1.15$ 2.

The classes follow CR 0, Annex A1, Table A1.1, and reflect the human and economic consequences of a major hazard and the building’s role in the post-hazard response 3.

This excerpt lists only class I, so it doesn’t settle the factor for a hospital without emergency services or surgery.

At $A = 1200$ m, the characteristic ground snow load is $s_k \approx 3.38\ \mathrm{kN/m^2}$.

For sites at $1000\ \mathrm{m} < A \le 1500\ \mathrm{m}$ where the zoning map gives $2.0\ \mathrm{kN/m^2}$, relation (3.1) applies 1:

1. Inputs: $A = 1200$ m and $s_k(A \le 1000\ \mathrm{m}) = 2.0\ \mathrm{kN/m^2}$, as you gave them.
2. Substitute: $s_k = 2.0 + 0.00691 \times (1200 - 1000)$.
3. Compute: $s_k = 2.0 + 1.382 = 3.382 \approx 3.38\ \mathrm{kN/m^2}$.

Values from relation (3.1) are mandatory minimums for design 2.

Your documents don’t give wind pressures. The Structural codes workspace holds only CR 1-1-3-2012, which covers snow loads.

The closest they come: wind is listed as a factor in how snow settles on roofs — through the redistribution of snow and the local wind characteristics 1. That concerns snow load, not wind pressure on a façade.

To answer this, add the wind-action code to the workspace.