1) What are various windows made of and what will work best for me?

Basically there are three types of materials used. Aluminum windows, with their easily scratched painted surfaces, conduct both heat and cold, so they're very poor insulators. Wood windows, which require constant painting and caulking, can absorb moisture, making them difficult to open and close. They can even rot. Solid vinyl windows, however, never need painting and won't show scratches, because the color goes throughout the material. This is why vinyl windows are quickly becoming the most popular choice for both new construction and replacement applications.
In addition, you should certainly consider custom-sized windows for the very simple reason that they'll fit better. Stock-sized windows require extensive carpentry work both inside and outside your house. That can be very costly and inconvenient. Custom-sized windows, on the other hand, are manufactured to fit your existing window opening. You get the style and options you want while maintaining your glass area.

2) Is there any difference in how windows are made?

There are two basic types of construction: Mechanically fastened windows are screwed together at the corners. And welded windows, becoming more and more popular, that use a chemical or heat process for joining. Mechanically fastened windows feature a unique overlap corner design for extra strength, while welded versions utilize state-of-the-art heat welding equipment. Beware of windows with mitered corners screwed together or chemically welded corners, as they probably won't perform as well for you.

3) Can I replace my old windows with different styles or types?

Certainly, you may want to consult an independent dealer/contractor to find the type of window that best complements your home's natural design. No matter what style or combination of styles you choose, windows can be custom-manufactured for you.

4) What about strength, protection and noise reduction?

You should look for a window that offers both superior strength and energy efficiency. Manufacturers now use a computer-controlled process to ensure a perfectly square window sash and mainframe with superior strength.
And for exceptional energy efficiency, a full interlock at the meeting rail helps protect your home against the elements, or unwanted intrusions, while providing a noticeable reduction in the amount of noise that enters most homes.
In addition, the insulating glass unit traps dry air, creating an exceptional comfort barrier.

5) How does insulating glass improve the quality of windows and doors?

Insulating glass improves the quality of windows and doors by:

Improving the performance of the U- and R-values of your new windows and doors.
Reducing condensation.
Helping keep the heat in and cold out during winter.
Helping keep the heat out and the cold in during summer.

6) What causes condensation on windows?

Condensation, or "sweating," is a natural occurrence on all windows and is caused by excess humidity, or invisible water vapor, present in the air. When this water vapor comes in contact with a surface which is at a cooler temperature, the vapor turns to visible droplets of moisture.
Manufacturers have many features built in to keep the temperature of the glass as warm as possible and thus reduce condensation. By insulating glass the units provide energy efficiency to reduce the potential for condensation. However, there is no such thing as a condensation-free window in high humidity conditions. Controlling the amount of moisture in your home is the most effective action you can take to avoid condensation.
Here are a few tips on reducing the moist air in your home:

Use fans in bathrooms, kitchens and laundry rooms to circulate the air.
Air out your home frequently by opening doors and windows.
Reduce the number of indoor house plants, as plants increase humidity levels.
Use a dehumidifier to remove excess humidity from the air.

FAQs About Windows