The timing of when remodel construction actually starts is actually one month after submittal of the architectural and engineering plans to the Building Department for a One Story Home Addition, or two months in the case of a Second Story Addition. Therefore, this ‘readjustment’ time frame within the Design-Build package of services, is actually an opportunity to be utilized, with regard to Homeowner’s who choose to stay in the home and relocate within, as well as for Homeowner’s who choose to move out into a rental unit for the duration of construction.
Obviously rain water and moisture are considerations to be peppered for and abate, during ‘typical’ Winter months. Unfortunately here in Los Angeles, we are part of a CA State drought and not much rain to be concerned about, especially if the Design-Build Project is a One Story Addition. In this case, the openings or connections between the existing home and new One Story Addition/Major Remodel, should be covered with heavy plastic or tarps starting from the eave of one side of the existing house, going over the ridge/highest point of the roof and down the ‘opening’ to the ground, along with extending over the Addition part. Battening down with long wood planks and as few nails as possible, should withstand common wind pressures that could rip up this protective membrane. Simply covering the opening vertically with plastic will not protect the home, as water will find its way into the existing roof framing system and likely traverse down the rafters/ridge and into the house.
On the other hand, a Second Story Home Addition, one of which we are currently building in West Los Angeles, will involve removing much of the existing One Story roof structure, will pose a greater concern to be addressed, but will not negate construction during these months. In this case, there are many more ‘vulnerable’ parts of the existing home that need to be protected such as; the existing wood floor; dry-walled walls and existing spaces that may not be part of the overall remodel like the Kitchen.
In this case, situations could occur where half of the existing roof is totally removed, preface to framing for the Second Story Addition and thus with an impending storm on its way, temporary rafters on a slope (preferably with plywood tacked down over them) and then heavy plastic installed as mentioned above, should shed the majority of rain and protect the existing home.
Also of importance, is the wood/lumber that is installed outside the home (i.e. if on the lawn, laid on top of wood ‘sleepers’), which should be covered with heavy plastic as well, in an effort to reduce the amount of moisture content that will thus be ‘contained’ within the walls of the home during construction. The Code allows a moisture content of 19% already, so additional moisture is certainly unwanted and should be avoided when possible.
Either way, the positive and rewarding result of building during Winter, is the fact that by the time Summer and the Holidays arrive, construction will likely have been completed and you will be living in and enjoying your new One or Two Story Master Suite Addition, Great Room and Remodeled Kitchen, or New Home.
Best Always!, Barry R. Shaw AIA, GC