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<br />Protection <br /> <br />Recommended <br /> <br />Not Recommended <br /> <br />Building Site-continued <br /> <br />Using non historic protective features such as security <br />chain link fencing, or other forms of cordoning that <br />are of a temporary nature. and imply future. more <br />compatible solutions to security problems. <br /> <br />Providing proper site and roof drainage to assure that <br />water does not splash against building or foundation <br />walls, nor drain toward the building. <br /> <br />Building: Structural Systems <br /> <br />Recognizing the special problems inherent in the <br />structural systems of historic buildings, especially <br />where there are visible signs of cracking, deflection, or <br />failure. <br /> <br />Disturbing existing foundations with new excavations <br />that undermine the structural stability of the building. <br /> <br />Building: Exterior Features <br /> <br />Roofs and Roofing <br /> <br />Retaining the original roofing material. whenever pos- <br />sible. <br /> <br />Safeguarding by temporary protective measures all <br />architectural features that give the roof its essential <br />character, such as dormer windows, cupolas, con1ices. <br />brackets, chimneys. cresting, weather vanes. gutters. <br />downspouts, and lightning rods. <br /> <br />Removing, damaging, or altering architectural features <br />that give the roof its essential character when applying <br />temporary, protective measures. <br /> <br />Utilizing temporary roofing such as plastic, tar paper, <br />inappropriate shingles, etc., to temporarily protect the <br />extant roof and the structure from damage by water, <br />wind, or animal intrusion. This treatment implies a <br />future more permanent, compatible treatment. <br /> <br />10 <br />