Not when it’s installed correctly. Most skylight leaks are caused by improper installation or deteriorated flashing, not by the skylight unit itself. As roofers, we understand exactly how water moves across a roof and how to integrate a skylight with proper step flashing, sealing, and waterproofing. That’s the key difference between having a roofing company do the installation and having a general contractor or handyman do it.

Yes. Modern skylights with insulated glazing and low-E coatings reduce heat loss in winter and limit heat gain in summer. They also cut your need for electric lighting during the day. Vented skylights add passive cooling by releasing warm air that collects near the ceiling, which is especially useful in kitchens and bathrooms. University of Oregon research has shown that properly oriented skylights can contribute meaningful passive solar heating in the Pacific Northwest.

It depends on your goals. South-facing skylights capture the most direct sunlight and passive heat, which helps during Portland’s cooler months. North-facing skylights provide consistent, softer light without the risk of overheating. Kitchens and bathrooms benefit from vented models that release moisture and steam. Hallways, closets, and laundry rooms are great for solar tubes. We assess your roof structure, attic space, and your goals during the estimate and recommend the best placement.