We are wanting to have cellulose blown into our wall in our 100 year old farm house. We are chosing between two different installers. One will drill a hole half way into the underside of the siding and tube fill the walls. The other installer said he will use the “double-open” method drilling a hole on the underside of the siding at the top and bottom of the walls. Can you tell me what method is recommended? Thank you!
We are wanting to have cellulose blown into our wall in our 100 year old farm house. We are chosing between two different installers. One will drill a hole half way into the underside of the siding and tube fill the walls. The other installer said he will use the “double-open” method drilling a hole on the underside of the siding at the top and bottom of the walls. Can you tell me what method is recommended? Thank you!