Caribbean Disaster
Mitigation Project
Implemented by the Organization of American States
Unit of Sustainable Development and Environment
for the USAID Office of Foreign Disaster Assistance and the Caribbean Regional Program
THE ROOF
FAILURE IN ROOFS
IF THE SHEETING IS TOO THIN OR THERE ARE TOO FEW FITTINGS, THE NAILS OR SCREWS MAY TEAR THROUGHT THE SHEET.
To prevent this type of failure use more fixings for thinner sheetings.
Use fittings with a broad washer or dome head (zinc nail). To use more fixings for each sheet, put in the laths at closer centres and nail closer together.