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ROOF DRAIN PRODUCTS & PRICING:
All Drains
Balcony
Drains (raised drain covers)
Balcony / Walk Deck Drains (flat-top / flush style drains)
Drain Collars & Clamps
Drain
Domes, Covers & Clamps
Drain Kits (complete roof and parking garage kits)
Misc Drain Parts
(plates, spun bearing pans)
Overflow Drains,
Combination Roof / Overflow Drains
Side-Outlet Drains / Sidewall Drains
Receivers
Retrofit Drains (retro drains)
Roof Drains
Roof Drain Strainers and Replacement Parts
Re-roof
Drains & Retro Drains
Scupper
Drains, Side Outlet Drains
Trench Drain Systems and Parts
ROOF
DRAIN PRODUCTS SHOWN BY MANUFACTURER:
LSP Products / TechSpecialties
Marathon Roof Drains
Olyflow/ Olympic Drains and Parts
Portals Plus Drains and Parts
RAC Drains and Parts
Smith Drains and Parts
Wade Drains and Parts
Watts Drains and Parts
Zurn Drains and Parts
More Roof
Drain Information:
Complete Roof Drain Engineering Guide (Zurn)
Drain Connection Types
Sizing Roof Drains (Zurn)
Typical Roof Drain Installations (Zurn)
For additional
roof drain product options, drawings & specifications,
please check our suppliers online catalogs:
J.R.
Smith Mfg. Co. Drains & Special Plumbing
Products.

Information About
Suppliers & Their Products:
LSP Products aka Tech
Specialties® represents LSP’s reputation for innovation in the roof
drain product line. Products include the Uniflex roof drain with
membrane clamps, copper roof drains, plastic adjustable roof drains,
plastic side-outlet roof drains.
The OlyFlow family of retrofit
roof drains and accessories is a complete line of labor saving and
performance enhancing roof drain products. From the top selling UFlow
Hercules RetroDrains, to the RAC Deluxe RetroDrains, they have your
roof drain needs covered. The NewCon new connection drains,
drain-guard products and custom fabricated drains available, OlyFlow
products are ready to help you drive profits.
Portals Plus
manufactures solutions for roof leak problems. Roof leaks are the biggest
problem of architects and building owners. 85% of all roof leaks occur at
penetrations and corners due to poor details which fail to accommodate
movement. Extreme roof temperature swings require durable and flexible
flashings. The National Roofing Contractors Association (NRCA) states
that "Pitch pockets or pans by their design, are not intended to be
continuously watertight. Their use should not be encouraged since better
methods are available to accomplish the same end. Pitch pans or pockets
require frequent inspection and maintenance, and usually a great deal of
damage can occur before the leak around a pitch pocket or pan is evident."
 Roof Drains provide efficient
internal drainage of water from the roof surface. Roof Drains are an
effective year-round solution to removing water from the roof surface
in all weather and all seasons. Interior Roof Drains have the
advantage over gutters and downspouts because interior Roof Drains are
maintained at the interior building temperature and are far less
likely to freeze and back up in harsh northern climates. With the
advent of sloped roof decks and tapered insulations, it has also
become necessary to include Overflow Roof Drains to relieve dangerous
overloading of the structural system caused by heavy ponding water
Zurn: Since its founding in 1900
as the Hydromechanics Division, the Zurn Specification Drainage
Operation has been a leading producer of roof drains, deck drains and
floor drains for the commercial, industrial and institutional building
construction industry. All the Zurn products are engineered and
manufactured to meet all ANSI standards. Architects, engineers,
plumbing contractors and wholesalers involved in non-residential
construction all specify Zurn drains. Zurn has an excellent 305 page
Customer Guide which lists specifications and technical data
needed to properly size roof drains, floor drains, interceptors,
carrier systems, hydrants, cleanouts, floor sinks, water hammer
arrestors, traps, primers and backwater valves for new or retrofit
installation.
Drain Design & Selection
(courtesy J.R. Smith): The engineer
should lay out the roof drain system consistent with the structural
design strength of the roof. Normally for a flat roof with a 30 lb.
sq. ft. design load, the water depth or build-up would be limited to
3". This will keep the load down to approximately 15 lbs. per square
foot. For sloped roofs, the allowed water depth can be greater, but
only to the point where the stresses will be within the design
limitations. This will be up to the discretion of the engineer. The
roof drainage design can be based on a number of factors. The prime
consideration could be economy, using minimum leaders and storm
sewers. The allowable roof load or build-up could limit the design. Or
possibly, drain down time could be the limiting design criteria. In
any case, knowing the maximum flow rates, which are controlled, the
engineer can properly size leaders and storm sewers economically
consistent with his selected design criteria.
DRAIN
DESIGN CONSIDERATIONS:
When designing the roof drain system, the engineer must remember that
the roof is being utilized as a temporary reservoir to retain some
water. Flashing and water proofing should be high enough to prevent
any leakage. The engineer must also provide adequate strength for
structural safety. In addition, the following considerations should be
observed:
These are not absolute requirements, but are suggestions to be
considered. The final design is at the discretion of the design
engineer and should be consistent with the roof requirements.
a. On all roofs, use minimum of two
drains, if possible.
b. On larger roofs, use a greater number of drains as dictated by
design layout.
c. Limit roof area to 25,000 sq. ft. per weir opening.
d. Recommended maximum distance from roof edge to drain is 50 ft.
(flat roofs).
e. Recommended maximum distance from end of valley to drain is 50 ft.
(sloped roofs).
f. Recommended maximum distance between drains is 200 ft.
g. Provide adequate flashing at parapets, openings, walls, joints,
etc.
h. Limit parapet walls or provide overflow scuppers. These should be
located at the anticipated maximum water depth (build-up). If located
in a higher position which could result in a greater flow rate, piping
must be sized accordingly.
i. Consider wind effect in locating the drains, and the number of
drains.
j. Possible roof deflection due to load. This could create low spots
and adversely affect drainage and/or structural safety.
We feature quality
deck
drains,
drain strainer,
drain dome
cover,
reroof drains,
over-flow drains,
parking area drains,
Olyflow
drains, RAC drains,
PortalsPlus drains,
Smith drains,
side drain, sump drain,
retrofit drain, drain kits, drain sump receiver,
scuper
Other popular products and pages:
Butyl Rubber,
ChemCurbs,
Chinking,
Diamond Saw Blades,
Eternabond
Roof Leak Repair,
Expansion Joints,
Foam Roofing,
Formflex,
Hot Dipped Roofing Nails,
Houseboat Roof / Deck Repair, log home
products, Metal
Roofing,
Miami-Dade Nails, Narrow
Crown Stainless Steel Staples,
Pipe Flashings,
Portable Heaters,
Propane
Parts,
Restaurant
Exhausters,
Rex Synfelt,
Rigging / Lifting Hardware,
Roof
Anchors,
Roof Hatch,
Roof
Jack,
Roof Leak Repair, Roof Paints and Coatings, Roof Repair Materials,
Roof Nails,
Roof Supplies,
Roof Screws,
Roofing Fasteners,
Roofing Repair,
Roofing Supplies,
Safety Rail Systems, Sealants,
Sealing Washers,
Solar Fans,
Solar Roof Fans,
Sonolastic Clear 25,
Stinger,
Tarps,
Our popular suppliers
include
Active Ventilation,
Alpha ProTech,
AOSafety,
ASI Products,
Aztec
Washer,
BAK Welders,
BASF,
Chem
Link,
Chemrex,
Cleasby,
Compass
International,
Degussa,
Dow Chemical,
Eagle,
ERB
Safety,
Fry Reglet,
Green Bull,
Hatch Rail,
Hitachi,
IFG Fasteners,
JL Industries,
Leister,
Makita,
Maze Nails,
Mitsubishi,
Polycoat,
Polyguard,
Portals Plus,
Powers Fasteners,
ProTech,
RHH Foam,
Senco,
SFS Intec,
Sievert,
Sonneborn,
S&P,
Spotnails,
Swan
Secure,
Uniroof,
United Coatings,
Weatherbond,
Winco |