If your Creve Coeur house has a deck above a room, the boards you walk on are not necessarily the surface keeping that room dry. There may be a separate roof underneath. Before you approve a leak repair or replacement, ask one specific question: how will the contractor reach that roof? A price that assumes clear access can leave a substantial part of the work undecided when railings, deck boards and supports are still in the way.
Town roofing: a deck can hide the work area
Start by identifying what is above the room with the ceiling stain. An elevated deck over an open yard is a different situation from a deck over a kitchen, garage or enclosed porch. In the second situation, the assembly must provide both a walking surface and protection from rain. Those functions may belong to separate layers, with separate repair needs.
Do not assume the visible condition of the boards tells you the condition of the roof. Boards can look serviceable while concealing debris, standing water or a damaged roof surface. They can also look worn while the waterproofing beneath them remains intact. Replacing the walking surface and replacing the roof are two different decisions. An inspection needs to establish which work is necessary and how one affects the other.
This matters during a St. Louis autumn, when leaves can collect beneath an outdoor walking surface. Looking across the top of the deck does not show whether the drainage route below is clear. Before winter freezes that wet debris in place, have the contractor identify where water leaves the roof and whether that outlet can actually be reached for cleaning.
Ask what the first opening will show
A contractor may need to remove a limited area of decking before describing the full repair. That can be reasonable. The important distinction is between an agreed inspection opening and permission to dismantle the entire deck. Ask which boards or panels will come up, what the opening is intended to reveal, and how it will be secured afterward.
The inspection should establish how the deck is supported, what roof surface is underneath, and where that surface meets the house. Ask for photographs that show those relationships. A close picture of a wet spot is less useful if you cannot tell whether it sits beside a support, below a doorway or near the drain.
Access through one opening does not establish the condition of every concealed area. If the contractor can see only a small part of the roof, the findings should say so. You need to know whether the proposed work addresses a confirmed defect or whether additional removal is necessary to find the source. Those are different reasons to authorize the next expense.
The supports belong in the roofing discussion
Find out whether the deck rests on supports above the roof, attaches through it, or uses some combination of the two. Do not accept an assumption based on how the finished deck looks. A support can obscure the roof beneath it, and an attachment through the waterproofing creates a detail that must be understood before work begins.
The proposed roof assembly should account for how the deck will sit above it. Ask the roofer to identify the protection required between the roofing material and the deck supports, using the requirements for the actual roofing product. That answer should be available before the deck is rebuilt. Otherwise, two contractors can each complete their own portion while leaving the contact between them unresolved.
A roof surface also should not become an unplanned storage area for dismantled deck components. Ask where boards, railings and framing will be placed during the work. The answer affects access, handling and the chance that someone will have to move the same material several times.
What it costs: access is a separate part of the job
A useful estimate separates the work needed to expose the roof from the roofing itself. It should also address putting the walking surface back. Without those distinctions, you cannot tell whether a lower number reflects a different roof repair or simply leaves deck work for someone else.
Ask for the following items to be identified in the proposal:
- Removal of the deck components needed for roof access.
- Storage and handling of material intended for reuse.
- Repair or replacement of the exposed roofing.
- Any further investigation that requires a separate authorization.
- Reinstallation of the deck and railings, including responsibility for replacement pieces.
Reusing the existing boards may reduce the material purchase, but it does not remove the labor of lifting, sorting and reinstalling them. Some pieces may not survive removal. Ask how the contractor will distinguish material that was already deteriorated from material damaged during the work, and how replacement will be priced. Do not build your budget around a promise that every concealed fastener and board will come apart cleanly.
Size alone will not explain the price. A small roof with a complicated deck above it can require considerable handling before roofing begins. Door access, stairs, railing removal and a place to store components all affect the job. A price per square foot that ignores those conditions gives you little basis for comparing proposals.
Plan the handoff before the roof is exposed
If one contractor handles the deck and another handles the roof, name the person coordinating their schedules. There needs to be a clear point at which the roof is ready for inspection, another at which roofing work is complete, and another at which rebuilding may begin. Ask who confirms each step.
Weather protection also needs an owner. A delay between removing the deck and completing the roof can leave the house dependent on temporary protection. The written plan should identify who installs that protection, who checks it during a delay, and whom you call if water appears inside.
Before railings or walking surfaces are removed, agree on how access from the house will be restricted. An upstairs door may still open onto the work area even when the deck is unusable. That detail needs attention before demolition starts, particularly if children, visitors or pets use the door.
What to ask about the next repair
Putting the deck back exactly as it was may recreate the access problem. Ask whether the rebuilt arrangement can provide removable sections at drains and other locations that require inspection. The person designing those sections must account for secure footing and the deck's construction. A loose board laid over an opening is not a finished access detail.
Ask how routine cleaning will happen underneath the deck. Where does debris collect? Which section comes up? What tools are required? Who can remove it without disturbing the roofing? Have the contractor demonstrate the access before the job is considered complete.
Keep photographs of the exposed roof before the deck returns. Include the drainage outlet, supports, attachments and the transitions at the house. Those photographs will give a future contractor information that the finished walking surface hides.
To discuss a roof beneath a deck in Creve Coeur or the greater St. Louis area, call Keys Roofing, the contractor behind Creve Coeur Roofing and Gutters, at (314) 220-2333. Explain which room is below the deck, where water has appeared, and whether any part of the roof is visible. Ask whether the first visit can establish the access needed or whether a separate opening must be arranged.