AVP's Commercial Witches Hat is a Passive Vent designed for flat roof ventilation. The witches hat vent has a seamless top, preventing water and snow entry. The internal louvers prevent insects, rodents or birds from entering. The witches hat\u00a0ventilates the attic<\/a>\u00a0by letting out hot air in the summer and moisture in the winter. In addition, making this vent ideal for low sloped or flat roofs. The detachable head allows for easy installation on EPDM, PVC, TPO and other roof membranes. Constructed of heavy gauge, rust free aluminum.<\/p>\n To create ventilation for a\u00a0flat roof<\/strong>\u00a0you will need to circulate the air in the attic or plenum. Attic ventilation is important as it can help maintain the health of the building. Removing unwanted heat in the summer and excess moisture in the winter will help the life of the roof. This will also help the functionality and efficiency of the HVAC systems. Here at\u00a0AVP<\/a>, we have a vent for any\u00a0roof pitch<\/a>\u00a0in all\u00a0climate zones<\/a>.<\/p>\n This model is WHV-8 because it is 8 inches in diameter.<\/p>\n For any questions, email us at\u00a0sales@roofvents.com<\/a>\u00a0or call at\u00a01-800-ROOFVENT<\/a>. If you are looking to determine the pitch of your roof, see the\u00a0Roof Pitch Diagram<\/a>.<\/p>\n Commercial Witches Hat Vent | WHV-8 AVP's Commercial Witches Hat is a Passive Vent designed for flat roof ventilation. The witches hat vent has a seamless top, preventing water and snow entry. The internal louvers prevent insects, rodents or birds from entering. The witches hat\u00a0ventilates the attic\u00a0by letting out hot air in the summer and […]<\/p>\n","protected":false},"featured_media":48286,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":""},"product_cat":[28],"product_tag":[],"diameter":[217],"height":[274],"product_line":[237],"nfa":[240],"diameter_nfa_combo":[189],"flange_type":[212],"attic_fan_cfm":[],"solar_fan_cfm":[],"pipe_cap_type":[],"shingle_vent":[],"curb_height":[],"acf":[],"yoast_head":"\n