Specifications include, but are not limited to:
1) Remove existing gravel built-up roof and insulation to the metal
deck. Repair or replace deteriorated and damaged metal deck.
Follow manufacturer guidelines for removal and replacement of
2) Install a new gravel surface 4 ply roof membrane, 1/2” gypsum
board, and insulation as specified. The insulation shall consist of
one (1) layer of 1.5” polyisocyanurate insulation set in Type IV
and one (1) layer of 2” polyisocyanurate insulation mechanically
3) Install new 24 ga. prefinished coping, counterflashings,
downspouts, conductor heads, etc., as specified. Color selected
4) Installation shall comply with project documents and in
accordance with NRCA, SMACNA, ANSI/SPRI, and
manufacturer’s guidelines. Where discrepancies exist, the most
stringent method shall apply.
5) Furnish Manufacturer’s 20 year NDL Roof System Warranty.
6) Furnish Manufacturer’s 20 year Metal Finish Warranty.