Dryer Vent Through Wall Code

Cleaning lint buildup from roof vents is difficult.

Dryer vent through wall code.

Single wall vent pipe cannot be used for water heaters located in attics and may not pass through attic spaces crawl spaces or any confined or inaccessible location. It blows air 360 degrees backwards blasting the lint loose and blowing it outside. The lint is caught in a. A summary of the typical codes relating the dryer venting is as follows.

Dryer exhaust ducts shall conform to the requirements of sections m1502 4 1 through m1502 4 7. Routine cleaning is done from the outside by sending an air propelled jet snake through the vent. Dryer vent systems shall be independent of all other systems and shall convey the moisture to the outdoors. Choosing materials routing vent ducting dryer vent duct connections dryer vent termination at an exterior wall.

Local codes may be more restrictive and may not allow single wall vent pipe. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there. Dryer vent cleaning is a very real commercial trade and the contracted work is sometimes described as routine and problem cleaning. Solution to correct this you ll need a professional dryer vent replacement this process involves removing all hazardous duct work and correctly installing galvanized steel hard pipe to meet all code requirements if you simply have a plastic transition hose venting through an outside wall you can easily replace it by purchasing an aluminum flex hose 4 inches in diameter from your local.

Figures a b and c show the three most common paths from the dryer to the exterior. How to install a dryer vent and make sure that it is safe. Most home inspectors in the united states when citing regulations pertaining to dryer venting refer to the international residential code. Also we explain and illustrate problems that result from improper dryer vent.

Vent a dryer through the roof only as a last resort. Terminations shall be a minimum of three feet from property line and 12 above the ground and not exhibit any type of screen. Ducts that exhaust clothes dryers shall not penetrate or be located within any fireblocking draftstopping or any wall floor ceiling or other assembly required by the international building code to be fire resistance rated unless such duct is constructed of galvanized steel or aluminum of the thickness specified in section 603 4 and the fire resistance rating is maintained in accordance with. M1502 4 1 material and size exhaust ducts shall have a smooth interior finish and be constructed of metal having a minimum thickness of 0 0157 inches 0 3950 mm no.

Federal building codes for dryer vents and ducts. Clothes dryer exhaust vent installation or dryer vent duct cuct intallation specifications. If possible position your dryer along an exterior wall to keep the vent as short as possible.