Habitat Post & Beam, Inc., warrants that for 20 years from the day of product delivery we will be responsible for any major structural defects that occur as a result of the material we supply. Defects resulting from improper construction, improper or lack of maintenance, negligence, use of substitute materials, or the effects of damaging natural occurrences are not covered under this warranty. Individual manufacturers' warranties apply. Manufacturers' (shingles, doors, windows, etc.) warranty stickers/cards/ paperwork can be found in or on packaging upon shipment - please keep in a safe place.