ROOF HATCHES
PART 1: GENERAL
1.01 SUMMARY
	Metal roof hatches with integral curbs.
1.02 SYSTEM DESCRIPTION
	The roof hatches shall have a clear opening as shown on the drawings,
	and shall consist of an insulated cover and frame.
	Material shall be G-90 galvanized steel and have a factory applied coat of primer
	(.090 Aluminum H-14 3003, mill finish on aluminum models).
	Corners shall be fully welded and ground smooth.
	A gasket between cover and frame shall create a weathertight seal.
1.03 DELIVERY, STORAGE AND HANDLING
	A. Examine units upon arrival at jobsite.
	    Notify the carrier and manufacturer of any damage immediately.
	B. Store units until installation under roof, if possible; or, if stored outside,
	    under a tarp or suitable cover.
1.04 WARRANTY
	The unit carries a limited warranty of 1 year against defective material and workmanship,
	covering parts only, no labor or freight. Defective parts, if deemed so by the 
manufacturer,
	will be replaced no charge, freight excluded, upon inspection at manufacturer's plant
	which warrants same.
1.05 MAINTENANCE
	A. Under normal usage, the hatches shall require no preventive maintenance.
	B. No "Spare Parts" shall be required.
1.06 PRICING
	Unit pricing is available from Precision Ladders, LLC representatives
	or by calling (800)225-7814.



PART 2: PRODUCTS
2.01 MANUFACTURER
	Precision Ladders, LLC, P. O. Box 2279 - Morristown, Tennessee 37814.
	Phone: (800)225-7814. FAX: (423)586-2091.
2.02 MATERIALS
	A. CURB
	1. Formed from 14 gauge galvanized steel of lockforming quality per ASTM A-525 with
	G90 coating (.090 Aluminum H-14 3003 on aluminum models).
	2. Sheathed with 1" of rigid fiber board insulation.
	3. Height of 12" unless indicated otherwise on drawings.
	4. 4" integral flange for securing to roof.
	5. Hinges connecting curb to door shall be 1/8", 2 piece formed steel with 3/8" pivot pin.
	6. Extruded rubber gasket within a 20 gauge extruded aluminum track shall be securely
	    attached to the frame to make the unit weathertight.
	B. COVER
	1. Formed from 14 gauge galvanized steel of lockforming quality per ASTM A-525 with
	   G90 coating (.090 Aluminum H-14 3003 on aluminum models).
	2. Liner shall be 22 gauge galvanized steel with G90 coating
	   (.040 Aluminum H-14 3003 on aluminum models).
	3. Insulation between cover and liner to be 1" thick U.L. plain fiberglass 0.75# density.
	4. Lid shall be reinforced as required with 11 ga. steel channel.
	5. A one point cab lock is to be provided with a built-in inside handle on units with a 
length
	   of 4' 6" or less. On units of greater length, a 2 point slam lock will be used.
	6. Exterior of cover shall be devoid of hardware with the exception of the outside handle.
	7. Outside handle shall be vinyl coated, steel T-handle.
	8. Automatic hold-open device shall be formed from 3/16" steel flat bar and 1/2" diameter
	   steel round stock with a vinyl grip.
	9. Padlock provisions provided on both interior and exterior of unit.
	C. PRESSURE CONTROL
	Opening/closing assistance/resistance on all models shall be provided with pressure
	intensifiers consisting of a telescoping tube; the top(outer) tube shall be 1 5/16",
	bottom (inner) tube shall be 1 1/2".
	Tubes shall be cadmium plated and chromate-sealed.
	D. HARDWARE
	Corrosion resistant hardware and fasteners is standard.
	E. MANUFACTURED UNITS
	The roof is a Model P*** (*** see chart below).
	F. ACCESSORIES
	Optional safe exit handrail to facilitate getting on or off of roof.
	G. FABRICATION
	The hatch is completely fabricated ready for installation before shipment to the site.
	H. FINISH
	Red oxide primer.
	I. SOURCE QUALITY CONTROL
	1. All products inspected at factory in an ISO 9002 environment.
	2. All products tested in factory for proper operation before shipment.
Part 3: EXECUTION
3.01 EXAMINATION
	Examine rough opening in roof for opening size and squareness.
3.02 INSTALLATION
	Install per the manufacturer's installation instructions.
3.03 FIELD QUALITY CONTROL
	The manufacturer has representatives in all areas of the United States and Canada.
	For the name of the closest representative, call (800)225-7814.
END OF SECTION





STANDARD SIZES AND WEIGHTS
	MODEL			CLEAR OPENING		WT. (LBS)
	PLH-G				 2'-6" x 2'-6"			140
	PLH-G	 			 2'-6" x 3'-0"		 	160
	PLH-G 				 3'-0" x 3'-0"			185
	PLH-A			 	 2'-6" x 2'-6"			 90
	PLH-A			 	 2'-6" x 3'-0"			100
	PLH-A			 	 3'-0" x 3'-0"			140
	PSRH-G			 2'-6" x 4'-6"			240
	PSRH-G			 3'-0" x 5'-0"			280
	PSRH-G			 4'-0" x 4'-0"			290
	PSRH-A			 2'-6" x 4'-6"			165
	PSRH-A			 3'-0" x 5'-0"			230
	PSRH-A			 4'-0" x 4'-0"			240
	PNRH-G			 2'-6" x 5'-4"			260
	PNRH-G			 2'-6" x 6'-0"			270
	PNRH-G			 2'-6" x 8'-0"			360
	PNRH-A			 2'-6" x 5'-4"			225
	PNRH-A			 2'-6" x 6'-0"			235
	PNRH-A			 2'-6" x 8'-0"			310
G- denotes galvanized, A denotes aluminum. Custom Sizes are available..