Seal the window-unit gaps that let outside air into invited Commerce City homes

On fenceline blocks, the gaps around window air conditioners aren't just an energy leak — they're an open path for outdoor odors and dust into the rooms where families sleep. Proper foam panels and perimeter seals around each invited home's units tighten the envelope where it matters most. Standard: DOE room AC sealing guidance; EPA indoor air quality envelope practice; SDG 3 and SDG 7. Proof: Before/after per unit + count Method (DOE room AC sealing guidance; EPA indoor air quality envelope practice; SDG 3 and SDG 7.): 1. Confirm the invitation and inspect each window unit's mounting and gaps. 2. Remove improvised stuffing and clean frame surfaces. 3. Fit cut-to-size rigid foam side panels and seal the perimeter with weatherseal strips. 4. Seal the top sash gap and confirm the unit's outward drain tilt. 5. Photograph each sealed unit before and after with date and GPS. Done when: Before/after per unit + count

Where

Invited homes near E 64th Ave & Monaco St, Commerce City, CO 80022

Pay

$180 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash. You see which before you claim, never after.

Proof

Before/after per unit + count

This is exactly what gets it approved. Nothing settles without it.

Level

entry

Open until

2026-09-03

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 45–120 minutes. Method of record: US DOE Weatherization Assistance Program DIY-safe air-sealing measures + ENERGY STAR DIY Guide to Sealing and Insulating. Occupant-safe caulk/weatherstrip work only; no combustion, electrical, insulation-removal, or pre-1978 paint disturbance.

Bring

• camera
• caulk gun + paintable/silicone caulk
• weatherstripping + door sweeps
• foam outlet/switch gaskets
• utility knife + putty knife
• tape measure
• gloves + safety glasses

Steps

1. 1. Photograph each draft location (window trim, door, outlet, penetration) before sealing.
2. 2. Confirm the home is post-1978 or the surfaces are lead-safe; if pre-1978 with disturbed paint, STOP and flag for a lead-safe pro.
3. 3. Clean and dry each gap; remove old failed caulk/weatherstrip with the putty knife.
4. 4. Apply a continuous caulk bead to fixed gaps (window/door trim, penetrations) and tool it smooth.
5. 5. Install weatherstripping on operable window/door edges so it compresses without binding the sash/door.
6. 6. Fit door sweeps to exterior doors and foam gaskets behind outlet/switch plates on exterior walls.
7. 7. Verify each treated opening closes/latches and the seal is continuous; photograph the finished work.
8. 8. Enter locations sealed, materials used, before/after photos, and any flagged hazard into the proof record; sign.

If it does not match the plan

• Pre-1978 home with peeling/chipping paint on the work surface -> STOP: do not scrape/disturb; route to an EPA RRP lead-safe certified pro.
• Gas appliance, water heater, or fireplace in the space -> do not tighten a combustion-air/venting path; leave required make-up air and flag for a weatherization pro (backdraft/CO risk).
• Active moisture, mold, or rot at the opening -> fix the moisture source first; do not seal moisture in.

What counts as done

• Before and after photos of each sealed location
• Continuous caulk bead on fixed gaps and weatherstripping that compresses without binding
• Door sweeps and outlet gaskets installed on exterior openings/walls as scoped
• Every treated door/window still closes and latches after sealing

Proof is measured against these, not judged by taste.