Polytunnel
id:
polytunnel-300-9400550
title:
Polytunnel
text:
A polytunnel is a tunnel typically made from steel and covered in polyethylene, usually semi-circular, square or elongated in shape. The interior heats up because incoming solar radiation from the sun warms plants, soil, and other things inside the building faster than heat can escape the structure. Air warmed by the heat from hot interior surfaces is retained in the building by the roof and wall. Temperature, humidity and ventilation can be controlled by equipment fixed in the polytunnel or by
brand slug:
wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Polytunnel
date created:
date modified:
2023-12-25T22:43:49Z
main entity:
{"identifier":"Q1924144","url":"https://www.wikidata.org/entity/Q1924144"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/b/b0/Polytunnel_Balhungie.jpg","width":640,"height":480}
fields total:
13
integrity:
14