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FAQ: Building Codes

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Do I need a permit to close in my carport?
P. L. writes:
I live in Tucson, Az. I linked -up to you after exploring a search (yahoo) for buildingcodes. I hope that You can HELP Me. I would like to enclose our carport. Do I need a Permit/Inspection? Our neighbors (2) built over-night (pre-assembled) enclosures.One of them on the existing slab wich slopes 4"? over some 20' and only 5"-6" thick! Is that LEGAL? What could be the consequences if not?

Paul Fisette answers,
In most juristictions, you do have to get a building permit to close in a carport. I do not what your foundation requirements are in Tucson. If you do not get any frost, this slab may be OK. It may need to be reinforced. This is a perfect example of how irregular the codes are. You need to contact your local inspector and check the local codes for your area.

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Is there a building code concerning house wrap?
D.D. writes:
I am in the process of building a new home. While watching the process of other homes being built noticed that the builder is putting vinyl siding directly over the plywood. When I asked about this they showed me a letter from the siding manufacturer (Renyolds) that said this was approved for application as far as they were concerned.( letter has lot of caveats about check you local building codes) I have two questions. ( I am building my home in Pennsylvania)
1) Are their building standards /Codes that say there should be a Felt or tyvec layer between the siding and the plywood?
2) If not, based on your experience, is it better for the life of the home to pay extra for they additional layer between the siding and the plywood.

Paul Fisette answers:
The Massachusetts Code does not specifically prescribe housewrap or felt paper. It merely says that the exterior walls shall be faced with an approved weather resistant covering that is properly attached to resist wind and rain. HOWEVER..... It is my very strong opinon, based on many years of observation, expereince and study, that you need to provide a redundant protective mechanism beneath the siding. Siding leaks. Wind blows water through small openings in the siding at butt joints, overlaps, corners, against windows, etc. Once this water penetrates the outer skin, you should have a redundant system in place to take over. Flashing details are extremely important. Be sure to read the article on our web site

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