The chain of islands which comprise the Organisation of Eastern Caribbean States (OECS) is historically subject to frequent invasions of destructive hurricanes, and islands are subject to earthquakes as well. Volcanic eruptions are also hazards in at least two of the islands of the group. Many houses, generally owned or occupied by the poor, are also sited in gullies or in flood plains and are especially vulnerable to floods caused by high rainfall resulting from the frequent tropical depressions and hurricanes.
The Governments of the OECS member states have recognized that the damage caused by these extreme natural events affect all sections of society, and have placed emphasis on the development of building standards which would prevent or mitigate the damage so caused. The Governments are also revising existing planning and building regulations to be more responsive to the current needs, and to ensure as far as possible that all buildings are constructed in a "safe" manner and are resistant to the natural hazards.
To address these issues, the OECS Secretariat developed, with the assistance of the United Nations Development Programme and through the UNCHS/UNDP Project for Programme Support to the Human Settlements Sector in the OECS, standard building codes and guidelines appropriate to the conditions found in the OECS states. UNCHS and the USAID/OAS Caribbean Disaster Mitigation Project (CDMP) have assisted Antigua & Barbuda, Dominica, Grenada and St. Lucia with the development of national building codes and guidelines based on the OECS models. The Building Guidelines make use of the building traditions that lead to "safe" construction and introduce construction methods required for the proper use of contemporary materials.
The Building Guidelines are to be used for the design and construction of simple residential buildings of less than 3,000 square feet in gross area. Designers and constructors of buildings outside the scope of the Guidelines must consult the Building Code for the relevant design and construction requirements.
Within the Building Guidelines are many diagrams that were prepared to reinforce the message of the Guidelines that "safe" construction is possible at acceptable costs, if care is taken to implement the recommendations given. This document is a compilation of the diagrams in the Building Guidelines. The diagrams have been revised and prepared in electronic format, using AutoCAD release 14, with additional explanatory notes and comments. The primary use of this document is to accompany the Building Guidelines. It is expected that the document will be used specifically for:
Financial and technical assistance for the preparation of this volume of diagrams and text has been obtained from the Caribbean Mitigation Disaster Project, which is financed by the United States Agency for International Development's Office of Foreign Disaster Assistance (USAID/OFDA) and executed by the Organisation of American States.
These drawings are divided into sections, which correspond to the divisions in the existing Building Guidelines documents:
The Building Guideline drawings noted below are available for download in both graphic (GIF) and AutoCAD (DWG) formats. The graphic files are much larger in size than the standard screen, to preserve details. These drawings are scaled to fit the standard page in the text sections A-F above. The AutoCAD drawings can be downloaded individually or as compressed files (Zip format), by document section: Section A | Section B | Section C | Sections D-G
Figure | Description | Links |
A-1 | Plan Shapes of Buildings | Graphic | AutoCAD |
A-2 | Size and Location of Wall Openings | Graphic | AutoCAD |
A-3 | Typical Wall | Graphic | AutoCAD |
A-4 | Typical Wall Junction Detail | Graphic | AutoCAD |
A-5 | Reinforced Masonry Gable Arrangement | Graphic | AutoCAD |
A-6 | Recommended Method for Construction on Sloping Sites | Graphic | AutoCAD |
A-7 | Hip Roof Construction | Graphic | AutoCAD |
A-8 | Gable Roof Construction | Graphic | AutoCAD |
A-9 | Rafter/Ring Beam Connection | Graphic | AutoCAD |
A-10 | Wall Plate Connections and Hurricane Straps Details | Graphic | AutoCAD |
A-11 | In-fill Panel Between Timber Building Supports | Graphic | AutoCAD |
A-12 | Timber Framing for Walls | Graphic | AutoCAD |
A-13 | Timber Framing Showing Bracing | |
A-14 | Construction Site Layout | Graphic | AutoCAD |
A-15 | Roofing Detail At Parapet Wall | Graphic | AutoCAD |
A-16(a) | Damp-Proofing for Retaining Walls to Buildings | Graphic | AutoCAD |
A-16(b) | Damp-Proofing for Retaining Walls to Buildings | Graphic | AutoCAD |
B-1 | Permissible Arrangement of Strip Footing | Graphic | AutoCAD |
B-2 | Typical Spread Footing Detail | Graphic | AutoCAD |
B-3 | Reinforcement of Strip Footings | Graphic | AutoCAD |
B-4 | Concrete Floor in Timber Construction | Graphic | AutoCAD |
B-5 | Concrete Strip Footing and Concrete Base with Timber Construction | Graphic | AutoCAD |
B-6 | Typical Block Masonry Details | Graphic | AutoCAD |
B-7 | Concrete Column Detail | Graphic | AutoCAD |
B-8 | Alternative Footing Arrangements for Block Masonry | Graphic | AutoCAD |
B-9 | Floor Slab Detail | Graphic | AutoCAD |
B-10 | Alternative Floor Slab Detail | Graphic | AutoCAD |
B-11 | Fixing Detail For Verandah Rail to Column | Graphic | AutoCAD |
B-12 | Reinforcement Arrangement for Suspended Slabs | Graphic | AutoCAD |
B-13 | Reinforcement Arrangement for Suspended Beams | Graphic | AutoCAD |
B-14 | Reinforcement Arrangement for Suspended Cantilever Beams | Graphic | AutoCAD |
B-15 | Reinforcement Arrangement for Suspended Stairs | Graphic | AutoCAD |
C-1 | Alternative Foundation for a Small Timber Building | Graphic | AutoCAD |
C-2 | Fixing Detail for Timber Joist Bearing on a Concrete Beam | Graphic | AutoCAD |
C-3 | Fixing Detail for Timber Rafter to a Timber Header | Graphic | AutoCAD |
C-4 | Alternative Fixing Arrangements for Pillar Supports at Floors to Resist Uplift | Graphic | AutoCAD |
D-1 | Steel Column Pedestal and Footing | Graphic | AutoCAD |
E-1(a) | Cover Details for Reinforced Concrete Members | Graphic | AutoCAD |
E-1(b) | Cover Details for Reinforced Concrete Members | Graphic | AutoCAD |
F-1 | Schematic Drawing Showing Connection of Fixtures for a Single Storey Dwelling | Graphic | AutoCAD |
F-2 | Detail of Manhole Construction | Graphic | AutoCAD |
F-3 | Conventional Privy | Graphic | AutoCAD |
F-4 | Details of Construction of Water Cistern | Graphic | AutoCAD |
F-5 | Standard Septic Tank Details | Graphic | AutoCAD |
F-6 | Alternative Arrangement of Sanitary Fixtures in a Bathroom | Graphic | AutoCAD |
F-7 | Typical Plumbing Layout for A Small House | Graphic | AutoCAD |
F-8(a) | Soakaways in Areas with a High Water Table | Graphic | AutoCAD |
F-8(b) | Soakaways in Areas with a Low Water Table | Graphic | AutoCAD |
G-1 | Typical Electrical Plan for a Small House | Graphic | AutoCAD |
G-2 | Typical Sections of Wall Showing Locations of Fixtures | Graphic | AutoCAD |
USAID/OAS Post-Georges Disaster Mitigation: http://www.oas.org/pgdm | Page last updated on 17 Sep 2001 |