Concrete Patio next to house foundation

I live in Colorado where it is hot and dry in summer and very cold and dry in winter. I hired a contractor to pour a concrete patio next to my house. He poured the concrete all the way to touch the foundation without leaving any gap. The patio is about 5-6 inches thick. The concrete touches the foundation and part of the bottom board of the wood siding. Would that create a problem? If so, what should I do to fix the problem?
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On 5/1/2014 5:44 PM, Andy wrote:

IMHO it is a big 'yes' on both. I take it that there was no permit pulled and/or no inspection done? As for fixing the problem, demanding that the contractor remove the patio, repair any damage done, and refund the cost would be a good start. Then hire someone who will do it right i.e. with a properly excavated bed filled with solidly tamped stone base, with a filled 1/2" expansion gap, definitely not touching any wood let alone siding, and well-sloped away from the house.
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Andy wrote:

We live in Calgary AB up North similar climate. We have side walk poured on two sides of house when it was built in 1994 and back yard has big concrete pad for RV parking. The side walks touch concrete walls expansion joint is every 4 feet or so. So far no trouble, house is stucco exterior, but the wood contacting concrete may be a concern, if there is no roof on the patio, when it snows it can make the wood wet when snow piles up on the patio.
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Andy wrote:

I have a 4 feet wide concrete path poured on one side(North) of house tight againt basement concrete wall and foundation wall of attached garage. Total length is ~60 feet and sloped away(3 deg. or so) from walls very slightly so water can flow away. No problem for over 20 years. If I were you I wouldn't make the patio perfectly level.
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On Thursday, May 1, 2014 at 5:44:01 PM UTC-4, Andy wrote:

Mine was poured touching the foundation and no problems at all, nor do I see a problem. Touching wood though is a problem. The patio should be below the wood with a gap of at least several inches. You don't want water wicking up into siding, etc. Sounds like the patio was poured at the wrong level and should have been lower.
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