To make an outdoor sitting area warm for winter hang thick see-through plastic sheets around the sides to block the icy wind while still letting in sunlight. This method creates a bubble that keeps freezing weather out and traps heat inside. Because of this my family gets to enjoy morning tea even when December mornings drop to a chilly 30 degrees. Setting up this tarpaulin sheet takes a single weekend with a few basic tools. Measuring Your Open Outdoor Space Before buying an