How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
How can I tell if a window or sliding glass door is double or triple pane (insulated) glass?
Thursday, February 21, 2019
Hold a flashlight up to the glass and count the reflections. It’s that simple. Tilting the light at an angle to the glass can make it easier to see the one, two, or three reflection images.
Unfortunately, multiple-pane insulated glass can also become clouded after the perimeter seal around the glass panes is broken, and regular air begins to flow in and out of the space. Learn more about it at our blog post What is causing a foggy haze on my windows?
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To learn more about doors and windows, see these other blog posts:
• What causes sweating (condensation) on the inside of windows in the winter?
• Is every exterior door of a house required to have a landing outside?
• What are the small slots at the bottom of the outside of my window?
• Why does condensation form on the outside of some windows and not others in the morning?
• Why if the garage door track a white tube?
• What is the raised metal plate on the floor under the garage door?
• Why do I have to hold down the button to close the garage door?
• Where is safety/tempered glass required for the windows of a house?
• How can I tell if a window or glass door is safety glass?
• Should a front door swing in or out?
• Why is pressure washing double pane windows an expensive mistake?
• How many exit doors are required for a house?
• How many exit doors are required for a mobile/manufactured home?
• Can a bedroom door open into the garage?
• What are the building code requirements for a door from the garage to the house?
• What is "low-E" window glass?
• What does ANSI 297.1 on glass mean?
• Why is a double cylinder deadbolt lock on an exterior door a safety hazard?
• How can I check my garage door to make sure it is safe?
• Does a home inspector test all the windows and doors in a home?
• How difficult is it to change a window to french doors or a sliding glass door?
• How do you determine if a door is left-handed or right-handed?
• Why are window security bars dangerous?
• What are the common problems you find inspecting windows?
• What do those numbers on the manufacturer's stickers in new windows mean?
• What does a home inspector check on an electric garage door?
• What is the tempered label on glass at windows and sliding glass doors called?
• Do I need to have two exterior exit doors in my house?
• When is safety glass required for windows at stairs and stair landings?
• Is tempered/safety glass required by the building code for windows and doors?
Visit our DOORS AND WINDOWS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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