how builders combat weather while building a house?


Been bugging me for a while, how do they avoid things like water damage while there’s no roofing or protective wrap?

EDIT: I have been enlightened, thanks everyone! From my understanding the TLDR is; They don’t put the damageable stuff in until the shell is good

In: 183

You don’t. You can let it rain on the framing material it’s fine. Stuff like subfloor has like a 6 month weather warranty. And most of the time the home gets roofed and sheathed pretty quickly after the roof trusses are up

A big part of construction is being weather tight. Certain things like foundations, the other walls, the roof underlayments and the core framing are all designed to get a bit wet and that’s A-OK. Bigger concerns would be things like freeze/thaw cycles which is why you wouldn’t be building during the winters.

Things that are sensitive to moisture like wiring and drywall wouldn’t be installed until the structure is weather tight.

Another big word in construction is “acclimatization” as certain materials, like finish wood products (cabinets, tables, wood flooring etc.) will shrink or expand with humidity. This is part of the reason why you would deliver wood flooring to a home and then let it set for a week to get the wood humidity to balance to the home humidity.

Bought a new house about two years ago so familiar.

They dont do anything when its just the frame…. But they get to a step, quickly get the roof and shingles on, and then everything is good and protected.

Once the roof, doors and windows are on the house is considered to be “in the dry” and you can start bringing in things that can’t get wet. Things like sheetrock, paint, electrical, cabinets, appliances, etc….

The concrete slab doesn’t mind a little rain and once the walls start going up, it only takes a few days to get the roof, windows and doors on.

You get wet, then you dry it out.

When you build the substructure, main framing and roof, you are completely at the mercy of the elements, so if it rains, then you get wet.

The trick here is that getting wet doesn’t necessarily cause any long term issues. Once cured, concrete wont be damaged at all by a bit of water, brickwork will shrug it off without damages, and even timber (which traditionally will be affected by moisture) well be treated before it is supplied to site trip make it more moisture resistant, and won’t be damaged permanently unless you truly soak it over the long term.

Once you get your house mostly water tight, you can then just dry it out. Get the roof and outer walls up and you will stop most of the water from getting in, and if you leave the walls as open framing then they will dry out pretty quickly.

Once you have a water tight structure that has dried to an appropriate moisture content, then you finish it up by doing all of the work that needs to be kept dry – insulation, electrics, plasterboard and so on.