He briefly interrupted his artistic studies after his mother died on 15 February 1701 and trained with his uncle Karel van der Haegen as a goldsmith.
In the Dutch Republic the artist worked on multiple decorative paintings for houses in the cities of Amsterdam, Rotterdam and The Hague.
De Roore and Gerard Hoet reportedly negotiated an agreement for the sale of van Dyck's St Martin Dividing his Cloak but were stopped by the local villagers from removing the painting from the church in Zaventem where it was located.
In 1740 he received a large commission to decorate all walls of a room in the Amsterdam residence of Gerard Arnout Hasselaer on the Keizersgracht.
[5] De Roore died on 17 July 1747 in The Hague leaving a substantial art collection, which was subsequently auctioned off.
He also produced imitations and copies of the great Flemish masters such as Rubens, van Dyck and David Teniers II.
[3] Paintings by de Roore are in the collections of the Louvre Museum (the Couple before the Altar of a Temple Dedicated to Diana), the Rijksmuseum (the Idolatry of Jeroboam) and the Royal Museum of Fine Arts Antwerp (The City of Antwerp pays tribute to the Austrian dynasty and Samson insulted by the Philistines).