There’s a lot to keep in mind when purchasing new windows and patio doors, so we’ve compiled a list of commonly asked questions you might have. If you need more information, please contact us.

WHY DO OLD WINDOWS EVEN NEED TO BE REPLACED?

• There are several factors to consider.
• Energy loss: Perhaps 25 per cent of your energy bill is lost through windows. A 3′X5′ window with a 1/16″ gap around the sashes is like having a hole the size of a brick
• Condensation: Energy-efficient windows stay warmer on the interior surface, so humidity can be raised without getting moisture on windows, which can eventually damage walls. Less condensation also helps reduce growth of mold.
• Air quality: Tight windows keep out dust, bugs, pollen and sound
  – so the indoor environment is healthier.
• Avoid washing windows with high pressure spray.

WHY SHOULD I CHOOSE VINYL WINDOWS?

Vinyl is an excellent option for windows and doors because of its energy efficiency, strength and versatility. Vinyl is resistant to moisture, doesn’t need painting and has a very good insulating value. Wood windows have similar insulating value but they will warp and rot if not painted, resulting in poor efficiency. Vinyl is an attractive low-maintenance option for renovators and homeowners.

WHAT IS “Low-E” GLASS?

Low-E stands for low-emissivity. Emissivity is a measure of how much a glass surface transfers radiant heat.

LoE 366 (Cardinal)

LoE 366 – Is recommended when cooling costs outweigh heating costs in your energy usage, or where summer discomfort from heat build-up should be an important concern. This is the best glass for most applications in a southern climate. It has a very high reflection rate of the radiant outside heat to prevent heat gain in summer and in winter it still retains radiant once you turn on your furnace! LoE 366 has a lower Solar Heat Gain Coefficient (SHGC) in order to minimize Solar Heat Gain that results in extra work for your air conditioning unit.

LOF (Libby Owens Ford) / Pilkington Energy Advantage

LOF – Pilkington Energy Advantage Low-E is the best glass for most applications in a northern climate. It has a very high retention rate of the heat in your home in winter and prevents heat gain in summer. Energy Advantage Glass has a higher Solar Heat Gain Coefficient (SHGC) than Low-E glass designed for southern climates. It provides free winter heat for your home. Since as much as 95% of your energy expense for heating and cooling combined is for heating, this glass is more cost effective than other glass without a high SHGC.

CAN CONDENSATION CAUSE DAMAGE?

Condensation can be a serious problem. The moisture produced by everyday activities such as cooking and showering shows up first on cool dense surfaces such as windows. Over the long term, this dripping can damage windows and nearby surfaces such as drywall and promote growth of mould, a potential health hazard. One solution is to reduce humidity but levels can’t always be lowered sufficiently, especially in the winter when moisture is needed to prevent drying. A better solution lies in the windows themselves. North Star windows feature Super Spacer® technology which boosts window R-values by 30 per cent. The advanced warm-edge technology in North Star windows keeps the glass much warmer so they are less likely to fog.

HOW GOOD IS NORTH STAR’S WARRANTY?

North Star stands behind its products with a transferable, limited lifetime warranty.