Practical guide for Swiss drywall contractors and acoustic installers: sound insulation per SIA 181, VKF fire-rated ceilings EI 30 to EI 90, suspended ceilings under DIN 18181, NPK 671, and BKP 281.
Practical guide for Swiss painting and drywall contractors: SMGV estimating norms, NPK 671/672 takeoff rules, SIA 242/243 surface quality levels, and VVEA hazardous building audits.
Practical guide for Swiss master plasterers, renderers, and ornamental stucco craftsmen: interior and exterior plastering per SIA 242, mineral binders under SIA 248, surface quality levels Q1 to Q4, historical stucco restoration, BKP 271/281, and NPK 671.