LONDON, April 2 (Reuters) - British construction activity slowed slightly for a second month in a row in March, as businesses continued to postpone major building projects due to Brexit uncertainty, an industry survey showed on Tuesday.
The IHS Markit/CIPS purchasing managers’ index (PMI) edged up to 49.7 from 49.5 but remained below the 50 mark that divides growth from contraction, representing the first back-to-back fall in output since August 2016, just after Britain voted to leave the European Union.
Housebuilding continued to record moderate growth, but civil engineering fell and commercial projects - such as new shops, factories or warehouses - dropped off at the fastest rate since September 2017.
“Brexit-related uncertainty continued to generate indecisiveness, ultimately hitting order book volumes,” said Joe Hayes, an economist at IHS Markit, which compiles the survey.
Official data last week showed construction output grew just 0.3 percent in 2018, the weakest in six years.
Although new orders grew slightly faster in March, they were below their long-run average and construction firms reported tougher-than-usual competition, IHS Markit said.
Builders also reported increasing delays in getting supplies, due to low stocks and stretched capacity from vendors, while raw material costs rose at the fastest rate in four months, due to a weak currency and some shortages.
The survey had previously shown delays to building supplies, in February, when the construction industry blamed a lack of transport capacity due to increased pre-Brexit stockpiling by manufacturers who relied on imports from the EU.
March’s survey of manufacturers, released on Monday, showed a further increase in stockpiling to a fresh survey-record level for a major advanced economy.
Britain had been due to leave the EU on March 29 but Prime Minister Theresa May was forced to ask the EU for a delay after parliament refused to back the exit plans she had negotiated with Brussels.
Currently, Brexit is due to take place at 2200 GMT on April 12 unless May comes up with another option.
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