Recent content by Elaheh

Yeah for sure, butterfly dampers are installed in round ductwork to prevent damper protection from air leakage. They would reduce your energy consumption as well and make your ductwork perform in better way.

Local exhaust ventilation is good for kitchens and bathrooms, but fans must be certified to provide their rated airflow at 0.25 in w.c. Standard 62.2 requires that local exhaust ventilation be provided for: Kitchens: 100 cfm or more if intermittently operated OR 5 air changes per hour (ACH) of...

Your driveway needs to be sprayed with asphalt emulsion SS1. These types of asphalt (bitumen) are liquified with water. By dispersing bitumen in water and adding an emulsifier, ordinary bitumen turns into a low viscosity liquid that can easily be used in a variety of applications, including...

The best material for the driveway is bitumen (asphalt). A bitumen driveway is flexible so it will not crack as readily as other types of driveways. The mixture and materials are very important. For avoiding any mistakes, try to provide the materials yourself. You need high-quality material...