Frequently Asked Questions (F.A.Q.)

Need an answer to your question? Check here for a list of the most frequently asked questions we receive. If you don't find your question in this list, go here.

1. How long will it take to manufacture a window or door product?

2. What is the difference between Weathertight and Watertight products?

3. How do I keep my windows from fogging or icing up?

4. What components make up a marine window?

5. What components make up a marine door?

 

Answers:

1. How long will it take to manufacture a window or door product?

Our customers' delivery times are very important and the answer to this question varies. Delivery time varies due to the type, style and the quantity of doors and windows ordered. Because Beclawat custom builds your windows and doors to suit your vessel or application, delivery times are negotiated at the time your order is placed.

Give our Technical Sales department a call at (613) 966-5611 x222 or x223
or
Contact us using our online form.

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2. What is the difference between Weathertight and Watertight products?

Water pressure test chamber

Watertight
A water test of 30 psi through a ½ nozzle at a distance of 10 feet with the water directed normally at the window. The duration of the test is one minute. The window is to withstand this test without leakage. A watertight door must withstand a 10 foot head pressure.

Weathertight
The same water test as the watertight product, however water penetration is permitted into the frame but must drain back out. The water must not enter the interior of the vessel.

For opening style windows, in most applications, a tightening assembly will increase the pressure of a synthetic rubber gasket to ensure watertightness.

As pictured above, a typical application will withstand up to 1.5 psi. Other modifications can be applied to achieve a higher psi depending on the style of window.

Many applications only require a "weathertight" style of closure.

To determine your needs of weathertightness, consult the vessel designer or call Beclawat's technical sales staff to assist you with your closure needs.

Water leak test chamber for locomotive windows.

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3. How do I keep my windows from fogging or icing up?

Beclawat is a manufacturer of electrically heated windows, designed to keep glass vision area free from ice and fog even under extreme cold conditions.

Yes, this can be applied to new construction or a conversion from unheated to heated windows. Applications can be commercial, military or recreational.

Beclawat's heated windows can be adapted to the special requirements. 75 watts per square foot (7 to 8 watts per DM2) is the most common heating capacity and can be manufactured to suit AC or DC power supplies..

Thermostatic controls must be used for wattage's exceeding 75 watts per square foot.

A wire grid or oxide heating film are available depending on the desired heating capacity.

Click here for more information on Electrically Heated Glass

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4. What components make up a marine window?

A ) Frame Materials:

• Aluminum
  All aluminum window components are Alloy 6061 and 6063.
• Stainless Steel
  Stainless steel frames are 304L or 316L
• Mild Steel
• Brass
  Brass is 260 grade

B ) Finishes:

• Aluminum is clear etch anodized to .0004 min. etch as per AA M32, C22, A31 unless otherwise specified.
• Aluminum is also available in a black anolock finish. Other colours are available upon request.
• Aluminum and steel is available in powder coated polyester or polyurethane painted finishes.
• Steel is generally sand blasted and zinc primed for shipping purposes.
• Brass and stainless steel available in a mill finish and is usually brushed with a 120 grit wheel.

C ) Glass:

• Tempered safety glass
• Tempered and laminated combination
• Tinted Safety Glass
• Hermetically sealed units
• Fritted safety glass for bond-in applications
• Electrically heated glass

More information on glass types

 

D ) Fasteners:

Retaining ring screws, hex bolts, washers, helicoils and any fastener required to secure 2 or more components together use either 18/8 or 410 stainless steel unless otherwise specified.

 

E) Glazing Gasket:

Commonly used to retain and/or seal glass into aluminum profile is manufactured from a weather resistant synthetic rubber or santoprene.

 

F ) Sealant and Glazing Tape:

Most fixed window applications have primary sealing compounds of butyl with a secondary seal of silicone.

Synthetic rubber, flock coated rubber material and water repelling felt are also used in some sliding window applications. UV resistant sealant is also used where necessary.

Bonded glazing applications use a Sikaflex brand adhesive. For technical support on which product best suits your application, visit Sika's product pages at http://www.sika-industry.com/.

 

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5. What components make up a marine door?

 

Frame
Skins
Materials
Hinges
Lockdowns
Lock handle

More information coming soon…

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