Dimensional Properties of Southern Pine Particleboard Underlayment
Abstract
The dimensional changes in particleboard underlayment installed over plywood sub-flooring on floor sections and exposed to different environmental conditions were investigated.
Gap formation between pairs of 8-ft particleboard panels attached by nailing occurred rapidly under drying conditions, causing print-through on narrow strips of vinyl floor coverings and rupture in the less elastic types. Attachment by glue nailing limited gap formation and prevented development of defects in floor coverings. Hot-melt coatings were effective in stabilizing particleboard panels of certain types when floor sections were exposed at 80 F and 10% relative humidity, but were of limited value when exposure was at 120 F and 20% relative humidity.
Changes in the distance from the joint between particleboard panels and points that were initially 1, 2, 3,—6 ft from the joint varied with the method of attachment of the panels to floor sections and were frequently in the opposite direction from that which occurs in unrestrained panels. The magnitude of the change and the direction of movement are explained in terms of the concurrent dimensional changes in the particleboard and the plywood subfloor to which it was attached.
References
Anonymous. 1970. Association reports shipments high despite housing slump. For. Ind. (July): 44-45.nJohnson, E. S. (ed.) 1956. Wood particle board handbook. The Industrial Experimental Program of the School of Engineering, N. C. State University, Raleigh.nLambert, H. 1970. Production up in most categories as capacity continues to increase. For. Ind. (July):30-31.n
Downloads
Published
Issue
Section
License
The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:
1. All proprietary rights other than copyright, such as patent rights.
2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.
3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.
