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Sunroom with blinds, plants and doors opening toward a deck
Home›Three-Season Rooms & Screened Porches

Screened porches & three-season rooms made for Michigan weather

One structure ladder, from pergola to glassed-in room. We engineer for Oakland County snow, dig footings below frost, and walk every project through the Troy permit desk and your HOA board.

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The Ladder

Which covered structure fits your backyard?

Four structures, one decision: how much weather to shut out. Cost climbs rung by rung, and so does the season you keep.

StructureOverheadWallsSeason it buysBest for
PergolaOpen slatted raftersNoneShade only, no weatherSun control over a patio
Covered deck / porch roofSolid roof, snow-rated framingNoneDry space, spring through fallGrilling and rainy-day seating
Screened porchSolid roofScreen panelsBug-free May through SeptemberMosquito-free summer evenings
Three-season roomSolid roofGlass or vinyl-track windowsRoughly April through NovemberShoulder-season living, no heating bills
Covered Structures

The roof changes everything about a Troy deck

Pergola, porch roof, screened porch, three-season room: one ladder. Every rung up adds structure, code chapters, and cost, and buys more usable season. We build all four rungs, and we tell you plainly which one your deck and budget can actually carry.

One ladder, four rungs

Pergola, porch roof, screened porch, three-season room. Cost climbs in that order, and so does the season each one buys.

Engineering before sales

A roof adds permanent dead load plus snow load to framing sized for people. We check capacity before we quote.

Footings below frost

Roof posts get their own piers at Michigan's 42-inch frost depth, so nothing heaves away from the house in February.

Permits and inspections handled

Covered and enclosed structures almost always need a building permit here. We draw the plans and meet the inspector.

HOA drawings included

Subdivision boards review roofed structures too. We prepare the elevations and material lists that get projects approved.

Honest about screening

Already have a covered porch? Screening it costs far less than building new, and we will say so up front.

How does a covered-structure project run?

Four gates between a bare deck and a finished room. Most delays live in the first two, so we start there.

1

Structure check

We measure the existing deck, probe posts and beams, and confirm what the framing can carry, or what needs upgrading first.

2

Design and load math

Rafters, beams, and footings get sized for the 25 psf Oakland County ground snow load, then drawn permit-ready.

3

Permit and HOA

We submit to the city Building Department, cover plan review questions, and hand your association the drawings it asks for.

4

Build and close out

Footings inspected before the pour, framing inspected before it is covered, then screens or windows go in last.

Numbers the roof answers to

25 psfGround snow load every roof must carry
42 in.Frost depth for roof post footings
10 psfMinimum roof live load, snow governs here
3 seasonsWhat a screened room reliably buys here
200 sq ftPermit exemption cap, detached yard structures only
Fire bowl burning on a deck at dusk with chairs behind Two wicker chairs and a wooden side table on a deck by a railing
TROYOakland County

Porches and rooms built for Troy

A roof changes the math. Your deck was framed for 40 psf of people and furniture, not the permanent weight of rafters and shingles plus the 25 psf ground snow load Oakland County makes every roof carry. Some decks here can take it. Many cannot, and the honest answer comes from checking footings, posts, and beams, not from a sales pitch. Troy Deck Builders designs and builds pergolas, porch roofs, screened porches, and three-season rooms across Troy, from new 42-inch frost-depth footings to city permit, HOA drawings, and final inspection. We also screen existing covered porches, which costs far less than building new, in Orchard Hills and Hickory Heights alike.

  • ✓ Pergolas & porch roofs
  • ✓ Screened porches
  • ✓ Three-season rooms
  • ✓ Roof-over-deck checks
  • ✓ 42-inch footings
  • ✓ Permit & HOA paperwork
Call (947) 218-7948 ☎ or request a quote
What We Build

Deck services for Troy homes

New builds, tear-outs, composite conversions, structural repairs, finish work, and roofed rooms, handled start to finish by one local team.

Elevated wood deck with pergola behind a row of brick two-story houses

Deck Building

New custom decks engineered for frost-deep footings and Troy's permit process.

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Temporary shoring braces holding a porch roof during a rebuild

Deck Replacement

Tear-out and rebuild for decks from Troy's 1960s-80s building boom.

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Rooftop terrace with brown deck boards, planters and a white umbrella

Composite Decking

Capped composite installed to the manufacturer's gapping spec, HOA colors included.

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Close-up of cracked, weathered gray deck boards

Deck Repair

Probe-first repairs for heaved footings, soft posts, and loose railings.

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Freshly stained deck boards beside a stone fireplace wall

Deck Staining & Sealing

Cleaning, brightening, and finish work timed to the dry windows.

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Sunroom windows and french doors opening to a deck

Three-Season Rooms & Screened Porches

Roofed, screened, and glassed rooms that stretch deck season into November.

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Service Area

Deck builders across Oakland County

Covered-structure work does not stop at the city line. We build the same snow-rated porch roofs and frost-depth footings in Rochester Hills and Birmingham, and the process barely changes: same engineering, same ladder, a different permit counter and plan reviewer.

Troy Rochester Hills Rochester Auburn Hills Bloomfield Hills Bloomfield Township Birmingham Royal Oak Clawson Madison Heights Warren Sylvan Glen Emerald Lakes Village Beach Forest Raintree Village Somerset North Northfield Hills Troy Meadows
Porch Questions

Straight answers on Troy covered structures

Sometimes. Deck framing is designed for 40 psf of live load, while a roof adds permanent dead load plus the 25 psf snow load this county requires. Whether your footings, posts, and beams can absorb that is an engineering question. We check the structure first and quote only what it can honestly carry.
The three-season room. The ladder runs pergola, porch roof, screened porch, three-season room, four-season addition, cheapest to most expensive. Each rung adds framing, glazing, or code requirements. The cheapest jump of all is screening a porch that already has a roof, because the structure is the expensive part.
Yes, plan on it. Any covered or enclosed structure attached to the house needs a building permit here. The narrow exemption in the current Michigan Residential Code covers only detached, low yard structures not exceeding 200 square feet, and no roofed addition attached to a dwelling ever qualifies.
Roughly April through November instead of May through September. Glass or vinyl-track windows stop the wind and hold afternoon warmth without a furnace or ductwork, so the shoulder seasons come free of heating bills. December through March still belongs to a conditioned four-season addition, which is a different project.
Yes. Once walls and windows go in, more chapters of the residential code apply, including safety glazing and egress where doors and exits are involved. That is part of why a three-season room costs more than a screened porch on the same footprint: the plans simply have to cover more.
Probably. The city has dozens of active subdivision associations and recommends confirming HOA approval before building decks, patios, or additions, and roofed structures nearly always need board sign-off. We supply the elevation drawings and material lists boards in Orchard Hills or Bridgewater Estates typically ask to see.
Michigan law requires anyone paid to build or alter a residential structure, porches included, to hold a state residential builder license, and an unlicensed builder cannot sue to collect payment for that work. Before signing with anyone, verify their standing through LARA, the state agency that issues those credentials. It takes minutes.
It is the best time. Design, engineering, permit review, and HOA approval can all happen while the ground is frozen, so footings go in the moment frost breaks in spring. Start planning in January and you can be sitting in the screened porch before bug season opens.

Michigan summers are short. Buy more season.

Tell us what your deck or patio does now and what you want it doing in October. We will walk the site and put a written quote in your hand.

(947) 218-7948
Mon-Sat 8am-6pm, Troy and nearby
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Call (947) 218-7948