A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
This chapter begins by arguing that wood does not generally absorb preservative throughout its entire cross‐section. It next discusses the basic methods by which wood preservatives are put into timber: the so‐called ‘high‐pressure’ and ‘low‐pressure’ methods. Then the chapter looks at the types of wood preservatives available nowadays, beginning with copper, chromium, and arsenic (CCA) and then going forward in time to the modern formulations, some of which still use copper, whilst others use combinations of rather fancy‐sounding organic chemicals like ‘azoles’ and ‘permethrins’, which act as either fungicides or (bat‐friendly) insecticides. It presents the observation that none of the newer formulations have yet been tested in real life for the 60‐plus years that CCA has been shown to be so good at. The chapter examines the field of exterior coatings for wood and explains why the newer generation of so‐called ‘microporous finishes’ is much kinder to wood used out of doors.
This chapter begins by arguing that wood does not generally absorb preservative throughout its entire cross‐section. It next discusses the basic methods by which wood preservatives are put into timber: the so‐called ‘high‐pressure’ and ‘low‐pressure’ methods. Then the chapter looks at the types of wood preservatives available nowadays, beginning with copper, chromium, and arsenic (CCA) and then going forward in time to the modern formulations, some of which still use copper, whilst others use combinations of rather fancy‐sounding organic chemicals like ‘azoles’ and ‘permethrins’, which act as either fungicides or (bat‐friendly) insecticides. It presents the observation that none of the newer formulations have yet been tested in real life for the 60‐plus years that CCA has been shown to be so good at. The chapter examines the field of exterior coatings for wood and explains why the newer generation of so‐called ‘microporous finishes’ is much kinder to wood used out of doors.
Wood Preservatives and Wood Finishes
Coulson, Jim (author)
2021-01-11
17 pages
Article/Chapter (Book)
Electronic Resource
English
Engineering Index Backfile | 1946
Engineering Index Backfile | 1944
Wood preservatives and treated wood: European standardization
Elsevier | 1993
Wood preservatives: application methods
British Library Online Contents | 1993
Wood preservatives - health hazards
| TIBKAT | 1990