Sealing penetrations from A/C

Tom_26

Does anyone have a solution other than foam and silicone for sealing around the refrig. lines that come through the siding . Do they make something similar to what is used on electrical wiring except larger.

Thanks for the info.

Andy Morgan_2

Holes

I drill as tight a hole as I can, (the insulation on the suction line will take up any play in the hole) and seal it with a very small bead of duct seal.

There isn't anything worse that a hole all gooped up with caulk!

Andy Morgan

R Morgan Mechanical

D lux_2

thum gum

is what I use holes up well ha ha

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clammy

line set holes

i use silcone but what i usually do is use a dryer vent to cover over my leader pipe it looks alot neater and seals much better then fill the rest with thumb gum

Mike T., Swampeast MO

A fire (supposedly from a wire in a "bind") started in the attic of the wood storage area/loading dock of my solid brick store building. The main electrical as well as the "offending" wire and A/C lines all penetrating the building proper in that attic. The hole for the main electric line was filled--the rest weren't.

Fire jetted through the UNSEALED and overly large holes and since it was the "mechanical route" and near the main wiring there was LOTS of SENSELESS damage to the building proper. All of this was done by a fully licensed idiot and fully inspected by the same department that is now giving us pure hell. After decades of being packed with rental property owners our city is now in the hands of real estate developers--one family in particular...a family that once they got what they wanted now flaunts zoning laws, builds the most hideously inadequate roads that must be re-built in short order at PUBLIC expense and constantly files suits blocking any city taxes that don't benefit themselves.

Dale

2 ways

For non fire rated walls we use a thum gum type sealer, black and you buy it in rectangualr blocks. For fire rated penetrations we buy a Dow fire rated calk, we use this if we house pipe mutilple meter rack gas lines from one end of a one story 8 unit to the other. No matter how sloppy the rest of the trades are or how lax the inspector your work should be legal because it's the right thing to do and for peace of mind.

Jim_19

Penetrations and voids

Our fire dept recently responded to a fire in the parts storage room of a large auto dealership closed for the weekend. The parts room was heavily involved in fire due to the fluids and aerosols commonly found around cars and trucks. The room had been built properly with fire rated sheetrock, fire rated doors, fire glass where necessary, roll down shutters on the pass through window, etc. Because the contractor had taken the time to properly seal every penetration and void, there was no extension, the rest of the dealership was undamaged and open for business the next day. This contractor gets a gold star on his report card.

Hope you do too.