national park service offers forty-seven downloadable pamphlets on a variety of restoration and preservation topics « »

National Park Service

Rather than shelling out big bucks for a consultant to, say, specify a mortar mix for re-pointing the brick on his 1880s rowhouse, TOH senior technical editor Mark Powers gets the advice free on the National Park Service website. Since 1975, experts in the building sciences and trades have compiled preservation briefs on a number of topics, including how to properly clean a marble mosaic and the best methods for restoring plaster-and-lath walls. Download one of the 47 pamphlets.
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