Make Your Windows Work For You

“Newer window models do a much better job at keeping the interior temperature regulated because they do not allow much hot or cold air to escape. Windows with wood frames or wood-clad frames offer the best value when it comes to insulation. They are, unfortunately, slightly more expensive than vinyl or aluminum models, but could be worth the higher price – especially if the window upgrade qualifies for PACE financing.”

https://ygrene.com/blog/8-best-home-energy-efficiency-improvements-can-make