DRA DRA

3132 M St Nw, Washington, Dc 20007
Exterior waterproofing. Removal of the drywall ceiling along the length of the beam and the vault under the sidewalk to permit visual investigation of the remaining areas of the beam and to help locate potential areas of corrosion.. Localized exploratory removal of brick pavers and concrete slab on deck at minimum of two locations along the m street facade to evaluate the extent of the corrosion on the top surface of the griders bottom flange, the condition of the slab on deck, and the condition of the waterproofing membrane at the sidewalk vault envelope.