Barricades have been erected around The Holy Trinity Anglican church, which was built in 1879, and parishioners are now having to meet for services in the church's memorial hall.

About $450,000 is needed to repair the roof, of which $200,000 has already been raised.

Ernest Shave, secretary of the church's National Trust Foundation appeal, said several tiles had been loosened and about 12 had slipped down to a gutter after years of wintry weather had rusted the metal cleats that held the tiles down.

He said the slate tiles were large and heavy.

"They are like an axe, it would chop your head off," he said.

He said the situation worsened last month with a major snow fall.

Mr Shave said it was decided two weeks ago it was too dangerous to continue to use the building.

He said they were considering using the existing $200,000 for repairs but would prefer to raise the full $450,000 to get the job down properly.

Mr Shave said the church was encouraging the community to make donations, which were tax deductible, to the fundraising appeal.

He said people should call the church office on 6362 1623 to find out how they could make a donation.

The church has significant historical value with a memorial tower built in 1924 to honour soldiers.

The church rector Father Mal Dunnett said they had been monitoring the roof for some time.

"We have known for a while that it was going to need significant restoration. Unfortunately, the recent wild weather with wind and snow has brought that to a head," he said.

"We have had a Workplace Health and Safety consultant and heritage architect in to assess the roof again, and there is concern that falling tiles could cause significant injury.

"We have been advised the only safe option is to secure the building while we look to complete the roof restoration in conjunction with the National Trust Holy Trinity Conservation Appeal."

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