How much would it cost to build a four season sun room on an existing foundation where a porch is about to be torn down?
Location is in rural Manitoba.
The first thing to do would be to see if the existing foundation will carry the increased weight of the new portion. A fully finished sunroom might weigh considerably more than the existing porch and could cause a lot of future problems. If you are in an area where a permit is required, the building department should be able to let you know.
You can purchase sunroom additions made entirely of glass. However, in the cold weather that you experience they ware exremely expensive to heat. Depending on how much winter light you want in will determine how much openess you want.
For the walls, I would suggest large windows which can be as large as your window rep can supply as they are all custom made. Get a few that open for cross ventillation and can be equiped with screens. (I suppose your area of manitoba is bug free!) These windows will not be as warm as a conventional wall, and if you want to go for the extra expense, you can get them triple glazed for extra enegy savings in the winter. True, most days in the winter are somewhat sunny and the warmth will be generated through the daytime, but if you wish to use the room in other than daylight hours, the triple windows will make it more comfortable.
If you are going to use el baseboards to heat the addition, make sure that you consult an electrician before you do the construction. Depending on the code, the height of the windows will be determined by how much clearance you require from the floor to the bottom of the window for placement.
Good luck and enjoy your new room!
Thank you for your answer!
It is good to know where to start in the whole process.
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