Glass just isn't a terrific insulator. Set your hand on The inner surface of a single glazed window on a cold working day and it'll really feel practically as chilly as the surface temperature. Secondary glazing sash windows are an amazing choice if you reside inside a conservation space with https://https-vu1-com-products-al08548.blogsumer.com/26129112/a-review-of-bespoke-secondary-glazing-in-covent-garden