<p>A member of the preservation crew is bent over on top of the roof. He is holding a black and white sign that reads "Gettysburg NMP Warfield House Placing Cedar Shakes on East Side PEPC 85531 8-5-20 Smith." The sky is blue and cloudy in the background with green trees framing the image.</p>
<p>Preservation crews installing cedar shingles on the roof add a strip of zinc between several courses of shingles.  The zinc strip creates a chemical barrier when it rains that helps to prevent moss from growing on the roof.</p>
<ul><li>Keywords: Gettysburg; Gettysburg National Military Park; battlefield; Civil War; homes</li></ul>
NPS Photo
Taken on 5 August 2020
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