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Title: Improving the Performance of Painted Wood Siding: Rain Screen, End-Grain Seal, and Back Priming

Source: JCT Coatings Tech, April 2009, pp. 36-39; 2009

Author(s)Burke, Edward; Bonura, Tony; Carll, Charles; Connelly, Dennis; Hunt, Christopher; Mall, Doug; Nebelsick, Arnie; Slavik, Norm; Stuart, Brent; Wiedenhoeft, Alex; Williams, R. Sam

Publication Year: 2009  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4707-1A   FPL-4714-1A   FPL-4723-1

Abstract: Moisture control is a critical means of improving the performance of solid-color stain and paint on wood siding. In this article, recommendations are given for constructing a rain screen, sealing the end grain, and back-priming siding to achieve this goal. Rain screen construction and back priming inhibit water absorption and bleed from run-down extractives if water gets behind the siding. Inhibiting water absorption improves dimensional stability of siding, thus improving finish performance. Sealing the end grain with primer decreases paint peeling and bleeding of diffuse extractives near the end of boards. These techniques should be used in combination with structure designs having adequate roof overhangs, ground clearance to bottom course of siding, roof-edge flashing, gutters, and downspouts.

Keywords: Siding; performance standards; building materials; service life; weathering; paint; deterioration; moisture; primers; absorption; coatings; finishes; finishing; testing; wood siding; exposure tests; durability; decay; ICC-ES AC38; moisture content; edge sealing; rain screens; moisture control; dimensional stability

File size: 3,111 kb(s)

Date posted: 10/06/2009

This publication is also viewable on Treesearch:  view
RITS Product ID: 31070
Current FPL Scientists associated with this product (listed alphabetically)
Hunt, Christopher G.
Research Chemist
Wiedenhoeft, Alex C.
Research Botanist

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