<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31319958</termId><termName>vapor barriers</termName><termType>PT</termType><termNote><![CDATA[ Moisture-impervious layers or coatings, such as special paint or a membrane on roofing felt or on building paper, which prevent the passage of moisture or vapor into a material or structure. ]]></termNote><termCreatedDate>2026-03-30 20:26:14</termCreatedDate><relation><relationType>UF</relationType><termId>31319959</termId><termName>barriers, vapour</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319960</termId><termName>vapour barrier</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319961</termId><termName>barriers, vapor</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319962</termId><termName>vapor barrier</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319963</termId><termName>vapor-barriers</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31305867</termId><termName>building materials</termName><termType>PT</termType></relation></term>  </Zthes>