The insulation used by a metal-roofing-contractor-singapore must be moisture-resistant. In the tropics, condensation can form on the underside of metal sheets if the insulation is not installed correctly. Contractors use foil-faced wool or closed-cell foam to create a vapor barrier. This keeps the insulation dry and effective while preventing "attic rain" from damaging the ceiling. Th... https://kkroofspecialist.com.sg/metal-roofing-contractor-singapore/