Ian Blackford MP visited Broadford Primary School on Friday 3 November at the invitation of the parent council.
He stated: "I have to say I was dismayed to see the deterioration of the building. I am aware that Highland Council has a replacement school for Broadford in its capital plan. I would suggest that the deterioration of the building means this is a matter of some urgency.
"Whilst I was visiting last Friday, there was also a visit from a pest control firm that advised that due to the wetness of the walls they could not proceed and take the action that they had been invited to do. Having seen around the buildings it is clear that there are multiple areas of water ingress and much of the construction is rotting.
"The advent of time, with our climate being as it is, will only exacerbate the problem.
"For pupils and staff having to work in a damp climate is clearly not acceptable. It was put to me that the incidence of asthma related illness is a cause for concern.
"I have today written to the council asking them to respond to the deterioration of the building as a matter of urgency."
In October, the Highland Council told The Skye Times: "The Council is currently reviewing its capital programme, the outcome of which should confirm a capital investment plan for the next 10 years.
"Investment in Broadford (and other Highland schools) is being considered as part of that process. We expect there to be a decision on schools capital investment early in 2018."