Service Doors, Hinges, Locks, and Weatherstripping

A. Finished-Project Specification

Scope: minor approved service on one non-rated, non-specialty exterior or interior door selected from the Chapter 7 service list, covering hinges, strike, lock, weatherstripping, sweep, and approved sealant only.

B. Component and Product Schedule

Component	Quantity	Specification	Preparation / Notes
Hinge screws	As required	Matching drive, length, and finish for the existing hinge and jamb condition	Replace stripped holes with an approved compatible fastener only after verifying concealed conditions
Replacement hinge (if required)	1 per worn hinge	Matching approved size, thickness, corner, pin, finish, and rating	Installed only after confirming the existing hinge cannot be restored by tightening
Lock lubricant	Manufacturer-specified quantity	Product specified for the lock type and environmental condition	Applied only to latch, deadbolt, and lock components; never flooded into the cylinder
Weatherstripping	1 set, matched to existing profile	Compression type matching kerf, stop, or mounting-surface profile	Cut to fit without stretching, bunching, or corner gaps
Door sweep	1	Matching existing mounting method and clearance requirement	Installed while preserving threshold drainage and required floor clearance
Backer rod and sealant	As required for approved joints only	Compatible with substrate, prior coating, and exposure	Installed only at joints intended for sealant; never at weeps or drainage gaps

C. Records and Reference Takeoff

• Records to review before service: Chapter 7 finding identifier, documented symptoms, water evidence, frame condition, hardware type, weatherstripping profile, and manufacturer information for this door.
• Maintenance-event form: one entry recording products, adjustments, results, unresolved causes, and next inspection condition.
• Before-and-after photograph set: reveal, latch engagement, threshold contact, and sweep contact, each photographed before and after service.

D. Acceptance Standards

Check	Standard
Cause verification	Structural movement, active water entry, frame decay, broken glass, a failed threshold pan, and major distortion are confirmed absent or referred, not concealed by adjustment
Hinge condition	All hinge screws are sound and properly seated; any replacement hinge matches the original size, thickness, corner, pin, finish, and rating
Latch and lock function	Latch and deadbolt enter the strike fully without lifting, slamming, or excessive force; lock cycles smoothly after lubrication
Weatherstripping continuity	Compression seal is continuous at all edges with no gaps, stretching, or bunching, especially at corners
Threshold and sweep	Sweep contacts the threshold across its full width while preserving required drainage and floor clearance
Sealant placement	Sealant is present only at joints intended for sealant; no weep, vent, lap, or drainage gap is sealed
Emergency operation	The door opens for emergency use, closes without slamming, locks securely, and does not bind through repeated cycling

E. Preparation — Selection, Verification, and Setup

1. Select a door from the Chapter 7 service list. Choose only an item that is documented as within the approved minor-maintenance scope.
2. Confirm the door type and rating. Verify the door is not a fire-rated, smoke-control, garage-separation, egress, high-security, automatic, or specialty assembly requiring a separate procedure.
3. Review documented conditions. Review the symptoms, water evidence, frame condition, hardware, weatherstripping profile, and manufacturer information recorded in Chapter 7.
4. Protect adjacent finishes. Protect the floor, threshold, walls, trim, and adjacent finishes before beginning work.
5. Record baseline operation. Operate the door and record reveals, latch engagement, threshold contact, sweep contact, and lock function.
6. Confirm the reported symptom is not caused by a referral condition. Verify structural movement, active water entry, frame decay, broken glass, a failed threshold pan, and major distortion are not the cause before proceeding. If any is found, stop and return the item to the Chapter 7 service list for the appropriate referral.

F. Hinge and Frame Alignment

1. Support the door. Place a wedge, prop, or second person under the door before loosening any hinge hardware.
2. Tighten sound hinge screws. Tighten progressively without stripping, overdriving, or distorting the jamb.
3. Repair minor stripped holes only where approved. Install compatible replacement screws only after verifying concealed conditions and required screw length.
4. Replace a worn hinge only with a matching approved hinge. Match size, thickness, corner, pin, finish, and rating exactly.
5. Recheck reveal and operation. Confirm reveal and operation are acceptable before altering latch or strike position.

G. Lock, Latch, and Strike Service

1. Clean latch, deadbolt, and lock components. Use a method compatible with the lock's finish and mechanism.
2. Apply the specified lubricant. Use only the lubricant specified for the lock and environmental condition. Do not flood cylinders, mix incompatible lubricants, or force a binding lock.
3. Adjust the strike only after hinge and frame alignment are accepted. Reposition the strike plate as required by the rechecked reveal.
4. Verify full latch and deadbolt engagement. Confirm both enter the strike fully without placing the door under excessive preload.

H. Weatherstripping, Sweep, and Sealant

1. Remove failed weatherstripping. Remove without damaging the kerf, stop, frame, or finish.
2. Clean and repair the mounting surface. Prepare the approved mounting surface for new weatherstripping.
3. Cut and install replacement weatherstripping. Fit without stretching, bunching, or leaving gaps at corners, in the correct orientation and depth.
4. Replace or adjust the door sweep. Preserve threshold drainage and required clearance.
5. Inspect the threshold. Confirm secure attachment, drainage, absence of trip condition, and seal compatibility.
6. Remove failed exterior sealant only at joints intended for sealant. Do not disturb weeps, vents, laps, or drainage gaps.
7. Prepare the joint and install backer material where required. Follow the approved sealant system's backer-rod requirement.
8. Apply compatible sealant. Do not block drainage or rely on sealant to repair failed flashing.
9. Allow required cure time. Do not operate or expose the joint before the specified cure period.

I. Testing and Closeout

1. Cycle the door repeatedly. Test latch, deadbolt, key, handle, closer, sweep, and weatherstripping contact through multiple full cycles.
2. Verify emergency operation. Confirm the door opens for emergency use, closes without slamming, locks securely, and does not bind.
3. Inspect the completed work. Check fasteners, reveals, compression, threshold, sealant, finish damage, water-management features, and floor clearance.
4. Document the completed service. Record parts, products, adjustments, results, unresolved causes, and next inspection condition on the maintenance-event form.