CEN/TC 250/SC 5/WG 9 - Execution

1.1   Scope of EN 1995-3
(1) This document gives minimum requirements for execution of timber structures (buildings and bridges) designed in accordance with EN 1995 (all parts) to ensure that what is built meets the requirements for mechanical resistance, serviceability, durability, and fire performance.
(2) This document gives guidance on moisture control during transport to the building site, storage on site, handling on site and erection.
(3) This document gives guidance on workmanship and deviation limits during execution.
(4) This document assumes that there is an execution specification which states all the specific requirements relevant for the execution of a particular structure.
(5) For products covered by a European technical product specification, this document only covers those aspects of fabrication such as cutting, machining and drilling after placement of the product on the market.
(6) This document does not cover:
a)   parts which are not designed according to EN 1995;
b)   temporary works (such as formwork, scaffolding, propping, shoring, etc.);
c)   specification, production and conformity of timber members in accordance with European technical product specifications;
d)   deviation limits for other properties than mechanical resistance, serviceability, durability and fire performance;
e)   contractual aspects, responsibilities of the various parties, competency requirements or the degree of independence of the personnel undertaking the inspection;
f)   health and safety requirements during execution.
1.2   Assumptions
(1) It is assumed that all relevant provisions of EN 1995 are complied with.
(2) It is recognized in this document that areas such as detailed requirements for competence of personnel, and details related to Quality Management are within the competence of the CEN Member States.
(3) Before the execution begins on a part of the structure, it is assumed that the following are available on site:
—   the drawings and specification of that part;
—   the execution specification.
(4) Before the start of the execution, it is assumed that the execution specification has been checked for completeness.
(5) It is assumed that previous work (such as foundations) has been inspected and that any work which needs to be done due to deviations from the execution specification has been carried out.