No_6_June_1969 — Page 41

MAXIMUM FRESHNESS -WESTERN RIDGELINE VENTILATORS &

GRAVITY ROOF VENTILATORS O

Keep Air Fresh & Cool at MINIMUM C

COS

WINDBANDS FORMED TO

PROVIDE WEATHER COVERAGE AND TO DIRECT WINDS FOR ASSISTING EXHAUST FUNCTION.

INTERNAL GUSSET SPACED AT CLOSE INTERVALS FOR RIGIDITY.

TOP PLATE WITH WIDE OVERHANG PROTECTS THROAT FROM ENTRANCE OF ELEMENTS.

THROAT FLASHING VENTURI SHAPED

FOR EFFICIENT INLET FLOW.

WESTERN RIDGELINE VENTILATOR

Designed for mounting on the Ridgeline, the ideal exhaust area of any building, Western Ridgeline Ventilators are engineered to provide high efficiency, low cost per C.F.M. and attra-

ctive appearance, enhancing even the plainest structure, Furnished in 8-foot sections the Western Ridgeline Ventilators are ideally suited for all public, commercial and industrial buildings of any length where efficient gravity ventilation is required.

INTEGRAL FORMED SCREEN RECEPTACLE.

EXHAUST CAPACITIES

PERFORMANCE TABLE CFM per lineal food

END PLATE

TRIMMED TO FIT

SPECIFIED ROOF PITCH.

END FLASHING SEALS ENDS AT RIDGE CAP

Madel

Size

Temp Diff* F

Effective Stock Height

10

20

30

40

50

10°

150

201

231

254

274

•

20*

201

254

292

327

353

30*

231

292

342

180

415

10"

211

269

300

JJ9

367

12

20"

269

330

390

437

472

30*

Jo

390

456

507

554

10+

243

336

385

424

458

15

20+

336

424

407

545

509

30

305

437

570

633

697

10"

316

404

462

509

550

20"

404

509

505

455

708

30"

442

505

634

761

031

10°

471

538

616

679

733

24

20*

536

679

700

074

944

30°

616

760

913

1014

1108

GRAVITY ROOF VENTILATOR

LICENCED MANUFACTURER FOR. S. E. ASIA:

Architecturally pleasing, low silhouette roof ventilator for gravity or relief applications where internal positive pressure exists. Also used as a discharge or intake hood for interior ducting systems available in square or rectangular sizes with equal width areas on all four sides. Engineered to provide weatherproof and storm- proof protection. Standard construction is of steel

or aluminium.

UNITED ENGINEERS

(SINGAPORE) PTE. LTD.

P. O. BOX 41, River Valley Road,

SINGAPORE.

ENGINEERING

W WESTERN ENGINEERING & MFG. CO.

VENTILATION

TO UNITED ENGINEERS (S'PORE). PTE. LTD.

PLEASE SEND ME FURTHER DETAILS OF:

(1) Western Ridgeline Ventilators CROSS OUT

(2) Gravity Roof Ventilators

NAME:

ADDRESS:

MATERIALS REQUIRED

WESTER

Far East BUILDER, June 1969

39