Poly tarps will not be appropriate for masking items that demand breathability because poly tarps would not have adequate Place between their particles to enable the passage of air. Pergola should be connected to your home a arbor / arbour or gazebo is just not connected to your own home. https://trevoracaun.wikibyby.com/1373213/how_tarpaulin_can_save_you_time_stress_and_money