We want to replace our 3 skylights when we fix up our roof. Are there any recommendations for energy-efficient skylights that do not lose enormous amounts of heat in the winter? What we have now are ...

I need to replace a skylight (the type on the top floor of the stair in a townhouse) on my roof. I also need to replace our roof trapdoor with a nice, new locking one. The roof trap door will be in my ...