Last fall we added a sun room on to our home. Our sunroom faces East and a little south we get full sun until 2:00 p.m.. We are planning on closing off the bottom of the deck. Someone told us we should be doing a scurting like a mobile home. Is this true? Also it now is a three season what is the cheapest way to heat the room om cool days. How can we make it four season? The room is made of Fully tempered glass from floor to roof. Baked on, maintenance free enamel finish. Roof panels are in a high strength, phenolic resin impregnated honeycomb-shaped core. Core thickness is 3".
Answer:
Putting a skirt around it and insulating that skirt properly will bring it as close as you'll ever come to making it a 4-season room All you have to after that is heat it and that can be done modifying any system your house is presently using. First, all insulation has to be removed from the crawl space ceiling - house floor. The whole dirt floor, with all its irregularities, has then to be covered with an impermeable material (6mm polyethylene, an old swimming pool liner, etc.). This has to be firmly and permanently sealed to the existing, well-applied perimeter wall vapour barrier – which should be covering insulation rated at least R-20. It also has to be taped to all perforating structural components (plumbing, support posts, etc.). That looks after the crawl space for most of the year. The vents (minimum two on adjoining walls allowing for 1 sq. ft. of vent for every 500 sq. ft. of floor space) on the walls have then to be adjusted so they can be opened and closed from the outside. This will negate the need for anyone to crawl around down there for seasonal adjustment of ventilation.
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